CENTREX INLINER Model: SX Centrifugal Inline Fans Direct ... 2005.pdf · Model: SX Centrifugal...

Bulletin SX05

Model: SXCentrifugal Inline FansDirect Drive and Belt Drive

CENTREX INLINER

Centrex InlinerIntroduction

PENNBARRY 1

FANSIZER®

Product Selection SoftwareFanSizer software allows you to select the best centrifugalor axial unit for your application. Input CFM and static pressure, and FanSizer will make the optimum selection. Itallows you to complete job schedules which you can store,modify and print in seconds. Features include: on-line help,on-screen product drawings and dimensions, and completetext specifications. In addition, you can convert job schedules to ASCII code for use with other programs likeword processing.

FANCAD®

Library of CAD DrawingsFanCad is a library of drawings for use with computer-aideddesign (CAD) systems. FanCad’s pre-drawn details cansave hours of drafting time. Included are all popularPennBarry fans and related items.

Visit Our Web SitePoint your internet web browser to www.PennBarry.com forup-to-the-minute information including:• On-line catalog• List of nearest PennBarry representatives• What’s New• HVAC “Hot Links”

FanSizer and FanCad are registered trademarks.

Centrex Inliner FansPennBarry certifies that theCentrex Inliner models shown here-in are licensed to bear the AMCAseal. The ratings shown are basedon tests and procedures performedin accordance with AMCA publica-tions 211 and 311, and comply withthe requirements of the AMCACertified Ratings Program.

UL and CSA CertificationCentrex Inliner fans carry the UL label, UL 705 (ZACT), listed under File #E28413. Check Underwriters Laboratories Re-Examination Service for specific units listed.

Centrex Inliner exhausters are also certified by the Canadian Standard Association (File #LR13309)* May not be applicable for 2-speed motors, or TE and EP enclosures.

©2005 PennBarry™ All rights reserved.

Following publication of this catalog changes may have been made in standard equipment, options and the like that would not be included. We reserve the right to make changes at any time, without notice, to models, specifications, options, availability, etc.

This bulletin illustrates the appearance of PennBarry products at the time of publication and we reserve the right to make changes in design and construction at anytime without notice. Your local sales representative is the best source for current information.

Introduction ..................................................................1

General Information .....................................................2

Features and Benefits..................................................4

Options and Accessories .............................................6

Motor Selection............................................................8

Direct Drive Key Dimensions.....................................10

Direct Drive Performance Data ..................................11

Belt Drive Key Dimensions ........................................14

Belt Drive Performance Data .....................................15

Sound Data Notes .....................................................29

Engineering Notes .....................................................30

Sample Specifications................................................33

Limited Warranty........................................................34

Table of ContentsCERTIFIED RATINGS

®

General InformationCentrex Inliner

PENNBARRY2

Centrex Inliner fans are widely used in square ducts as cleanair boosters in both supply and exhaust systems where the installation of conventional blowers is impractical. Theircompact design gives designers an excellent alternative toconventional blowers.

Direct driveDirect drive models with performance to nearly 3000 CFM tostatic pressures above 1 1/2".

Standard duty belt driveBelt drive models with performance to above 27,000 CFM tostatic pressures above 2 1/2".

High Pressure belt driveSelected belt drive models with performance to above 9,200CFM to static pressures above 4".

As an integral part of a ventilation system layout, CentrexInliner fans can be installed either horizontally, vertically or atany angle determined by the duct work. Full-size removablepanels enable easy access to the fan interior. Direct-drive

motors are isolated from the airstream. Belt drive motors aremounted on the outside housing and can be positioned atany angle to avoid existing building obstructions. Optionalmotor covers are available as belt guards.

Centrex Inliner fans feature durable galvanized steel construction (aluminum is optional for selected belt drivemodels), which works in conjunction with a patented wheeldesign and deeply spun inlets to provide smoother flowthrough the ventilator. The centrifugal wheels are aluminum,non-overloading, backwardly inclined, robotically welded,and dynamically balanced.

All models have been rigorously tested in our state-of-the-artR&D lab. PennBarry, is registered for AMCA Air and Soundtesting and qualified for the Underwriters’ Laboratory ClientTest Data Program.

Designed for easy maintenance accessibility, CentrexInliner fans accommodate a wide variety of motor types.All units are fully assembled and test run prior to shipping.Belt drive models are pre-set to the RPM specified.

General InformationCentrex Inliner

PENNBARRY 3

Motor SelectionBoth direct drive and belt drive models are available with awide range of voltages and enclosures. (See Motor Selectionsection for a complete listing). Standard belt drive Open DripProof (ODP) ball bearing motors are selected using a conservative portion of the NEMA service factor. Standarddirect drive ODP motors have Class B insulation and internaloverload protection. Each size is carefully engineered tomatch the motor to the wheel capacity.

All belt drive motors are installed “outside” the fan housingand the drive train components are out of the airstream.Direct drive ODP motors are isolated from the airstream withremovable motor covers and forced cooled from the exterior,or provided as Totally Enclosed (TE).

Internal WiringAll models with ODP motors are wired to an appropriateexternal junction box. An appropriately sized disconnectswitch is available. The initial electrical connection does notrequire the removal of any access panels.

Sound PerformanceLowest AMCA licensed sound performance in the industry.Units deliver outstanding air performance with minimal noise.

Structural IntegrityCorner post structural members are joined at their corners byan aluminum extrusion and then firmly locked in place toform a rigid framework.

Unique Mounting Frame Unique “fully flush” mounting frame allows installers to quickly fabricate “flanged” duct ends which can be easilysecured with common sheet metal hardware. The duct isconnected to a heavy-gauge corner post ensuring a sub-stantial wall for the fastener threads and a rigid base to holdthe shape of the ductwork.

Features & BenefitsCentrex Inliner

PENNBARRY4

Because of the rigid corner post construction of the Inliner,three of the four panels can be removed; only the top motormounting side is fixed. The removal of these panels is usual-ly for inspection and normal maintenance.

However there is another, and often overlooked, benefit tohaving this type construction. Any of these three panels, orall of them, can be removed and replaced by a duct connection. This option allows ducting directly out ofthe sides or bottom of the unit. This ducting arrangement:

• eliminates the static pressure duct loss throughduct fittings

• eliminates the cost of one or more field duct fittings (elbow or tee)

• is possible with no performance penalty

In some cases, just the space savings of transitioning directly from the unit can translate into a large savings byeliminating a lengthy “out of the way” run of duct.

A side discharge duct may either be the full panel size, orsmaller if desired. However, if not using a full panel, the ductopening must be installed at the inlet (wheel end) of the unitto avoid excessive “system effect” turbulence. In either case,the corner posts provide an effective surface for duct joints.

If this side ducting method is used, the typical straightthrough outlet may or may not be blocked, depending uponthe application.

Sizing using the unit as a transition is done the same way asif calculating the requirements of a duct only system.Basically, the total CFM of the system and the highest SP ofthe system dictate the selection. Air distribution can beimproved using these alternates, which may also simplify thesystem balancing process.

From this....

....To this

From this....

....To this

MINIMUM DUCTDIMENSION

Minimum Duct DimensionModel X

SX85 DD 7SX95 DD 7SX115 DD 12SX100 BC 7SX120BC 12

SX125BCH 13SX125BC 11SX155BC 12SX165BC 16SX205BC 16

SX205BCH 14SX225BC 20

SX225BCH 17SX275BC 19SX335BC 24SX420BC 30

Features & BenefitsCentrex Inliner

PENNBARRY 5

Three Removable Panels Both side panels are removable for inspection, periodicmaintenance, or optional discharge ducting. And, if requiredfor cramped close to-the-wall installations, once either sidepanel is removed, the bottom panel can then be removed.

Self-Aligning BearingsHeavy-duty bearings are sized for minimum L50 life inexcess of 200,000 hours of operation.100% factory tested,they are designed for air handling applications.

Drives and BeltsPulleys are pre-set to the specified RPM. Cast iron variablepitch pulleys are adjustable, allowing for field balancingbased on actual field conditions. All pulleys are sized for atleast 150% of the driven horsepower.

Aluminum WheelsCentrex Inliner fans offer patented wheel designs. Carefullymatched highly-tooled venturis enhance the performance ofthese backward inclined and non-overloading centrifugalwheels. Made of advanced aluminum alloys, the variouswheel components provide superior strength and durability,as well as spark resistant construction.

Silent Wheel (Direct Drive and SX100/120BC)• Blades’ highly curved leading edge provide unsurpassed

low sound numbers with excellent air performance.• Backplate and inlet are stamped for consistency,

plus dynamic balancing assure smooth vibration-freeoperation.

• Riveted or riveted and welded construction ensuresuperior dependability over other wheel designs.

Standard Duty, All Welded Wheel

(Standard Duty and High Pressure Belt Drive)• Blades are curved for improved air performance while

increasing their strength and rigidity.• Backplate and inlet are stamped for consistency. They

include a perimeter rim which enhances strength andimproves balancing.

• Wheel assembly is robotically welded to provideextremely durable and consistent performance.

• Wheel is dynamically balanced. Balancing weights aremechanically attached to both the backplate and wheelinlet. This allows a precise placement of the weightsanywhere within a full 360º range on two separateplanes, without the possibility of detachment.

Support AnglesShipped loose with every unit, these heavy-gauge anglesattach to two long corner posts. They can be used to installvibration isolator devices or to bolt the unit to a solid founda-tion.

Reverse VenturiReverse venturi reduces turbulence and improves distribu-tion of the air as it enters the wheel inlet and is “captured” bythe blades.

Reverse Venturi

Wheel and Hub Combination

PENNBARRY6

Options and AccessoriesCentrex Inliner

PENNBARRY6

Fan Guards ❶Both inlet and outlet guards are available whenever the unitis a termination point. Guards are highly recommendedwhenever the fan is mounted within seven feet of occupiedspace and/or otherwise unprotected ductwork. Each applica-tion must be reviewed for compliance with OSHA standards.

Inlet Rings ❷Structural angles formed as circles can be provided to con-nect unit to round duct systems.

Support Channels ❸A pair of formed channels can be used to mount the unitshorizontally to a solid base.

Vibration Isolators ❹A variety of isolation devices for floor mounting are available,including flex pads and rubber in shear or spring isolators.These can be used in conjunction with support angles (standard) or support channels (optional).

Vibration Hangers ❺To support installation from overhead structural members,these rubber in shear or spring type isolators attach tothreaded rods provided by the installer. Vibration hangers areattached to the unit by support angles (standard) or supportchannels (optional).

Motor Cover ❻Normally provided as a belt guard.

Support Angles ❼These are provided as standard. It is not necessary to orderas an accessory.

Spark Proof ConstructionAMCA “B” construction is available. Please refer to detailedinformation regarding AMCA Standards in the EngineeringNotes section of this catalog.

1

2

5

3

4

1

6

8

7

PENNBARRY 7PENNBARRY 7

AMCA B ConstructionBelt drive models, up through SX205BC, are available withaluminum panels and corner posts.

Backdraft DampersBackdraft dampers are available for either gravity or motor-ized operation (motor kit optional). Dampers feature squaregalvanized steel frame, multi-leaf, roll formed aluminumblades with nylon bearings.

Optional FinishesSpecial coatings such as two-part, heavy-duty amido-aminEpoxy, Aluma-Glas™, and Heresite, are available for applications involving corrosive conditions and/or other damaging influences.

ELECTRICAL ACCESSORIESSafety Disconnect Switch ❽Safety disconnect switches are avail-able. This on/off type switch is avail-able for all single and three-phasemotors. Factory wiring is not availablefor explosion proof motors.

Firestat SwitchFirestat switch automatically discon-nects the unit when the temperatureof the air being exhausted exceeds apreset rating.

Time-Delay Switch (Direct drive models only)

The Airminder Model AM12 switch is a ULlisted and CSA certified time-delay relaythat operates both the fan and room lightto ventilate an area even after the occupants depart. In the “On” position, the Airminder turns the light and fan onimmediately. In the “Off” position, the lightgoes off immediately and the fan is inoperation for a period of time as presetfrom 1 to 60 minutes.

Speed Controls (Direct Drive Models Only)The Lek-Trol™ unit allows adjustment ofairflow. It can be installed on the unitwhich permits system balancing andeliminates unauthorized tampering ofthe setting. If wired to the unit from thebuilding, the airflow may be adjustedeasily by the occupants.

CENTREXInliner

DUCT(by others)

BACKDRAFTDAMPER

AIR FLOW

Options & AccessoriesCentrex Inliner

PENNBARRY8

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Motor SelectionCentrex Inliner

After choosing a fan model from the Direct Drive or Belt DrivePerformance Data sections, it is important to review themotor availability charts in this section before specifying elec-tric motors for your particular needs. Factors which influencethe selection process are discussed below.

Electric Power ConsiderationsFirst, determine the nature of the electric power feeding themotor. Is it single phase or three phase power? Next, deter-mine the required line voltage. Is it 115V, 230V, 460V? If yourHVAC application is in the U.S., the frequency of the alter-nating current will be 60 Hz. All of North America and most ofCentral and South America use 60 Hz as does Saudi Arabia.Most other countries in the world use 50 Hz.

Environmental ConsiderationsStandard motors supplied with fans are called Open DripProof (ODP) motors. Other types of motors may be requiredto meet specific field conditions; high temperature (50°C) orTotally Enclosed (TE) are two examples. Hazardous environ-ments require Explosion Proof motors. Standard ExplosionProof motors are rated for Class 1, Group D, Div. 1 and ClassII, Groups F and G, Div. 1 applications. Motors for otherclasses and groups may also be available. Please consultyour local PennBarry representative for information.

Fixed Speed Motor Control Two-speed motors, used in conjunction with external switch-es or sensors (gas concentration, odor, temperature), areused to quickly adjust the airflow through the ventilator bychanging from one fixed speed to another. Two speed motorsoperate at either 1800 & 1200 RPM (2 speed, 2 windings) or1800 & 900 RPM (2 speed, 1 winding). However, 2 speed, 1winding motors are available only in 3 phase power. A singleoperating voltage must be specified because dual-voltageversions are not available in a 2-speed motor.

Variable Speed Motor ControlPennBarry offers Lek-Trol™ solid state controllers to alter thehigh speed of most direct drive motors by as much as 50%.If variable speed is required, check the Lek-Trol availabilitytable on the following page to verify that controllers exist forthe fan model selected. Remember, Lek-Trol controllers arecurrently only available for direct drive motors. Motors suit-able for use with field supplied Frequency Inverters (variablespeed control) can be supplied for belt drive models. Contactyour local PennBarry representative.

High-Efficiency MotorsMotors that comply with the requirements of the EnergyPolicy Act of 1992 are available.

Notes:

Caution: Hazardous environments require that fans be built for such service. (Care must be taken regarding thelocation of these fans in the duct run and surrounding environment). All belt drive inline fans, regardless of manu-facturer, inherently leak. Additionally, the flat access panels supplied are not designed to provide air-tight service.Duct systems, except those fully welded, are not air-tight.

Direct Drive Motor AvailabilityThe following chart lists the various motor options available for each of the direct drive fan models. Once a fan model isselected, this chart can be used to determine if a suitable motor is available. (If not, another selection may have to be madefrom the fan performance charts). Look under the nominal RPM heading to determine which fans have 2-speed and 3-speedmotors. PennBarry’s electronic FanSizer will ensure accurate selections.

(1) High speed only.(2) 200 - 240, 380, 415, 460 V(3) Nominal 1650 RPM

(4) Cls. I, Grp. D, Div. I/Cls. II, Grp. F & G, Div. I. Not available with 50 Hz.

(5) 230 V only. Not available in 200 or 208 V(6) 230 V and 460 V only.

PENNBARRY 9

Motor SelectionCentrex Inliner

Lek-Trol™ Controller AvailabilityThe table above shows the availability of Lek-Trol controllersfor direct drive models. There is a controller available for allsize models. Not all totally enclosed motors are currentlyavailable with variable speed control.

Note: Lek-Trols indicated for multi-speed models are applicable only for thehigh speed. Do not use on low or medium speed for multi-speed models.

Belt Drive Motor AvailabilityThe chart below lists horsepowers, voltages, and enclosuretypes. After selecting a model and horsepower that meetsperformance requirements, an engineer can verify that thedesired voltage and enclosure are the same (or smaller) asthe maximum NEMA motor frame shown for each model (seeNEMA Motor Frame Size chart).

NEMA Motor Frame SizeThis chart summarizes the largest allowableNEMA frame sizes for motors used on beltdrive models.

On horsepowers less than 1 1/2, motor frame sizes may change due to variations in voltage, special features and motor manufacturer.

115 115V 200V 208V 230V 110V 220V 240V

SX085RC na LT30 LT35 LT35 LT35 LT35 LT35 LT35

SX095V/S/RC LT30 LT30 LT35 LT35 LT35 LT35 LT35 LT35

SX095QC LT45 LT30 LT35 LT35 LT35 LT35 LT35 LT35

SX115V/S/RC LT50 na na na na na na na

SX115Q1C LT40 na na na na na na na

SX115Q2C LT40 na na na na na na na

Model

60 Hz. 50 Hz.

Open

Drip

Proof

Totally Enclosed Totally Enclosed

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3/1 –65656565656585/6485/64

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1 T5416565656565656565

2/1 1 T281656565–T481T5416565

2 T281T541T541T541/65–T281T281T541T541

3 T481T281T281T541/65–T512T481T481T481

5 T512T481T481T481––T481T481T481

2/1 7 ––––– T512T312T312T312

01 ––––– T652T512T512T512

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MODEL

SX100BC

SX120BC

SX125B(H)C

SX155BC

SX165BC

SX205B(H)C

SX225B(H)C

SX275BC

SX335BC

SX420BC 215T

213T

213T

215T

215T

Max Frame Size

213T

213T

213T

213T

213T

PENNBARRY10

Direct Drive Fan DataCentrex Inliner

KEY DIMENSIONSThe following tables provide dimensional data for CentrexInliner direct drive fans as well as material gauges andapproximate shipping weights.

Dimensions

All dimensions are in inches.

Material Gauges

Centrex Inliner Direct Drive Models

D (sq.)inside

A

C(dia.)

B (sq.)

B (sq.)

View from inlet

Side view

Optional inletangle ring

Model No. Galv. SidePanel Galv. Venturi Est. Ship.

Weight

SX085RC 20 gauge 18 gauge 35 lbs

SX095VC,SC, RC, & QC 20 gauge 16 gauge 50 lbs

SX115VC,SC, RC, Q1C,

& Q2C20 gauge 16 gauge 70 lbs

Model No. A B (sq.) C (dia.) D (sq.)

SX085RC 16 1/8 15 3/4 11 3/4 13 3/4

SX095VC, SC,RC, & QC 24 1/8 15 3/4 11 3/4 13 3/4

SX115VC,SC,RC,Q1C,

& Q2C27 1/4 21 3/4 14 1/2 19 3/4

PENNBARRY 11

Performance DataCentrex Inliner

IntroductionCentrex Inliner direct drive models (except size 085) areavailable with single and multi-speed motors. Multi-speedmotors are designated V (1050 RPM), S (1300 RPM), andR (1550 RPM) (SX085R is an exception being a single speedmotor). Q, Q1, Q2 (1725/1760 RPM) are single speedmotors. A single Centrex Inliner fan may be suitable for several requirements by a simple wiring change. This featureprovides flexibility for a variety of reasons, including energysavings, future expansion or unexpected field variations.

By using Lek-Trol variable speed controllers, the high speedflow rate of most models can be reduced by as much as50%. Do not use on medium or low speed for multi-speedmodels.

When compared to belt drive models, Centrex Inliner directdrive fans require less maintenance, have a simpler construction, cost less, and are lighter in weight.

Centrex Inliner direct drive models are available in three sizes (085, 095, 115). Capacities range from below 500CFM to over 2750 CFM, with static pressures from 0" toabove 1 1/2".

Performances in 50 Hz applications will be less than shownbelow; consult with local PennBarry representative.

Fan Capacity – Cubic Feet Per Minute (CFM)

SENOSMFCSENOSMFCSENOSMFCSENOSMFCSENOSMFCSENOSMFCSENOSMFCSENOSMFCSENOSMFCSENOSMFCMPRsttaW xaMPH

CR580XS 7.79627.74536.75347.72157.72858.714670040551851 6/1

CV590XS 1.58117.47512.49918.37422.38037.29241223050152102/1

CS590XS 72513.60629.54136.56632.53348.482553368893003146121/1

CR590XS 8.82613.83339.76747.76455.76164.78965.75779.794855740551212 6/1

CQ590XS 8.010022.21655318276.0115801709010690111011.0116016.01111129255271833 4/1

CV511XS 2.82915.75339.61643.65951.63669.54578.56786.516014.5992188730501734 6/1

CS511XS 5.93017.850387845.75569.60386.62297.614017.610218.628319.6665109640031494 3/1

CR511XS 013123.95646.80171.82397.776118.770319.79541891612.897713.8919129550551665 2/1

C1Q511XS 1.111946.013782.0102216.0121511155711.1136813.1125914.1124026.1133121.21612235950561107 2/1

C2Q511XS 3.216591.2174416.2132813157023.3158225.3138327.3167428.3117524137622.51467232265271498 4/3

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Performance shown is for installation Type B: Free Inlet, Ducted Outlet. Speed (RPM) shown is nominal. Performance is based on actual speed of test. Thesound ratings shown are for loudness values in fan sones at 5'0" (1.5m) in a hemispherical free field per AMCA Standard 301. Values shown are for InstallationType B: free inlet fan sone levels. Performance ratings do not include the effects of appurtenances in the airstream. For models shown on this page, the AMCACertified Ratings Seal applies to air and sound.

For further information on sound classification, see page 29. For options and accessories, see pages 6 and 7.

Nominal 1050 RPM

Nominal 1300

PENNBARRY12

FAN CURVESThe fan curves illustrated here show the range of capacitiesavailable for direct drive units. Each graph shows the perfor-mance of several models at one particular nominal speed.Fan curves provide a quick method for selection a fan unitbased on design point requirements.

The direct drive performance chart on the previous page pro-vides the tabular data (CFM and static pressure) used to plotthe fan curves. In addition, horsepower, tip speed and sonesare tabulated. Since sound is normally an important factor inthe selection of a fan, and engineer will usually want to selectthe “slowest” unit which meets CFM and SP requirements.


2.000

1.750

1.500

1.250

1.000

0.750

0.500

0.250

0.0000 250 500 750 1000 1250 1500 1750 2000

AIR FLOW – CFM

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SX115SC

SX095S

C

2.000

1.750

1.500

1.250

1.000

0.750

0.500

0.250

0.0000 250 500 750 1000 1250 1500 1750

AIR FLOW – CFM

ST

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SX115VC

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Nominal 1550 RPM

Nominal 1725 RPM

PENNBARRY 13


* SX115Q1C nominal 1650 RPM

2.250

2.000

1.750

1.500

1.250

1.000

0.750

0.500

0.250

0.0000 250 500 750 1000 1250 1500 1750 2000 2250 2500 2750 3000

AIR FLOW – CFM

ST

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SX

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SX115Q

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SX115Q

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2.000

1.750

1.500

1.250

1.000

0.750

0.500

0.250

0.000

0 250 500 750 1000 1250 1500 1750 2000 2250

AIR FLOW – CFM

ST

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SX115RC

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Note: Centrex Inliner fans are only one component of a total system. As such, fan performance is directly affected by the system. It is critical that systemdesigners determine the actual system loss to ensure that the actual flow is specified in the system design.

14

Belt Drive Fan DataCentrex Inliner

Centrex Inliner Belt Drive Models

H

D (sq.)inside

A

C(dia.)

B (sq.)

B (sq.)

View from inlet

Side view

Optional inletangle ring

KEY DIMENSIONSThe following table provides dimensional information forCentrex Inliner belt drive fans.

All dimensions are in inches.* Maximum for open motors and highest HP available for that size.

Model No. A B (sq.) C (dia.) D (sq.) H*

SX100BC 24 16 11 7/8 13 7/8 22

SX120BC 27 22 14 1/2 19 7/8 23 1/8

SX125B(H)C 27 22 16 1/4 19 7/8 23 1/8

SX155BC 33 28 16 1/4 25 7/8 26 1/2

SX165BC 33 28 18 7/8 25 7/8 26 7/8

SX205B(H)C 33 28 21 25 7/8 26 7/8

SX225B(H)C 36 33 1/4 26 30 1/4 30 1/2

SX275BC 44 40 1/2 30 7/8 37 1/2 39

SX335BC 48 49 1/2 37 7/16 46 1/2 44 1/4

SX420BC 54 60 44 57 49 1/2

PENNBARRY

PENNBARRY 15

Performance DataCentrex Inliner

Performance DataThe eleven belt drive models shown on the following pageshave sizes and capacities ranging from below 400 CFM toabove 27,000 CFM, with static pressures from 0" to above4". All models are available in up to eight different horse-power sizes with a wide range of RPM. Two-speed motorsare commonly used to increase this flexibility.

The data provided for each belt drive model includes:• Performance chart • Fan curve graph• Elevation drawing showing overall dimensions

Each curve graphically displays the range of capacities avail-able for each model, in most cases beyond the specificsshown in the tabular data. The maximum performance afford-ed by each horsepower is indicated by dashed lines and theRPM is indicated by solid lines.

Some models have graphs that show both shaded andunshaded areas. Selection should be made from theunshaded area only. Shaded areas reflect unstable perfor-mance (“surge”), a characteristic typical of backwardlyinclined wheels, and should be avoided. These unstableregions are not shown in the tabular data.

The highest RPM shown for a specific horsepower in the tabular data is the maximum speed that for any point alongthe performance curve, the BHP will not exceed the availablehorsepower.

It is important to note that while it is common industry-widepractice to exceed a “nominal” horsepower by using amotor’s service factor, PennBarry uses a conservative por-tion of the service factor, allowing half to remain a true “safe-ty” factor. PennBarry’s software also factors an additionalallowance for belt drive losses into the BHP calculations toensure proper motor selection. This allowance is currentlythe most conservative in the industry.

Use the Motor Availability chart (see Motor Selection section)to select motor enclosures and voltages which can beinstalled in the fans.

Note: Centrex Inliner fans are only one component of a total system. As such,performance is directly affected by the system. It is critical that systemdesigners determine actual system losses to ensure that the actual flow isspecified in the system range.

Belt Drive LossesThe air performance tables shown in this catalog do includedrive losses. When comparing the data found in our charts todata that does not include drive losses, the chart below willhelp estimate our equivalent brake horsepower (BHP).

The AMCA Review Committee has developed the chartshown below for the purpose of estimating belt drive losses.To calculate total BHP (including drive losses): Find the BHPof your operating point on the x-axis on the graph below.Follow the vertical line to the lines indicating the range ofdrive losses. Look at the y-axis on the left and find the driveloss percentage. Calculate the total BHP by adding the driveloss to the operating point BHP. For BHP’s below 0.3, use30%.

Caution: For totally enclosed, explosion proof, multi-speedand all 1.0 Service Factor motors, fan BHP plus drive lossesshould not exceed motor rated HP.

Note: FanSizer software incorporates a drive loss allowance when selectinga required nominal horsepower.

Reprinted from AMCA publication 203, with the express written permissionfrom the Air Movement and Control Association International, Inc., 30 WestUniversity Drive, Arlington Heights, IL 60004-1983

Motor Power Output (BHP)

Drive

Los

s(%

Mot

or P

ower

Out

put)

Range of drive loss for standard belts. Higherfan speeds tend to have higher losses thanlower fan speeds at the same horsepower.

16

SX100BCCentrex Inliner

1.000

1.250

1.500

1.750

2.000

3.000

2.250

3.250

2.500

2.750

0.000

0.500

0.750

0.250

0 400 800 1200 1600 2000

1/4 HP

3/4 HP

1/3 HP

1/2 HP

RPM

BHP

Use caution when selecting in shaded area.

1 HP

1250 RPM

1596 RPM

1730 RPM

1981 RPM

2268 RPM

2455 RPM

AIR FLOW - CFM

STAT

IC P

RESS

URE

- Inc

hes W

.G.

13 7/8

16

22

24

11 7/816

Galv. Side Panel = 20 gauge Alum. Corner Post = 0.064 in Peak BHP = (RPM/2396)3

Alum. Side Panel = 0.051 in Damper Size = 16 in (sq) Max. RPM = 2840 (1 HP)

Galv. Corner Post = 16 gauge Max. Mtr. Frame Size = 213T Est. Ship. Wts. (galv/alum) = 63/43 lbs

Sones BHP Sones BHP Sones BHP Sones BHP Sones BHP Sones BHP Sones BHP Sones BHP Sones BHP Sones BHP

4.2 0.05

5.2 0.07 5.3 0.05

6.2 0.09 6.3 0.09

7.4 0.12 7.5 0.13

8.2 0.15 8.3 0.16 8.3 0.15

9.1 0.18 9.1 0.2 9.2 0.2

10.1 0.22 10 0.24 10.1 0.25 10.1 0.23

11.0 0.27 10.7 0.28 10.7 0.29 10.8 0.29 10.8 0.23

11.2 0.28 10.9 0.3 10.9 0.31 11.0 0.31 11.0 0.26

11.5 0.3 11.2 0.31 11.1 0.32 11.2 0.32 11.2 0.29

11.7 0.31 11.4 0.32 11.4 0.34 11.4 0.34 11.4 0.31

12 0.32 11.6 0.34 11.6 0.35 11.6 0.36 11.6 0.33

12.3 0.34 11.9 0.36 11.8 0.37 11.9 0.38 11.9 0.36 11.9 0.27

12.8 0.37 12.3 0.38 12.2 0.4 12.3 0.41 12.3 0.4 12.3 0.34

13.3 0.4 12.8 0.41 12.7 0.43 12.7 0.44 12.7 0.44 12.7 0.4

14.1 0.45 13.7 0.46 13.4 0.48 13.4 0.49 13.4 0.5 13.4 0.48 13.4 0.4

15.0 0.5 14.5 0.52 14.1 0.54 14.0 0.56 14.0 0.56 14.0 0.56 14.0 0.52 14.1 0.37

16.0 0.58 15.6 0.06 15.1 0.62 15.0 0.63 14.9 0.64 14.9 0.65 15.0 0.63 15.0 0.57

17.1 0.64 16.6 0.66 16.1 0.68 15.9 0.7 15.8 0.71 15.7 0.72 15.7 0.71 15.7 0.68 15.8 0.57

17.9 0.69 17.4 0.71 16.8 0.73 16.6 0.75 16.4 0.76 16.3 0.77 16.3 0.77 16.3 0.74 16.2 0.68

18.9 0.75 18.5 0.77 17.9 0.79 17.5 0.81 17.3 0.83 17.2 0.84 17.2 0.85 17.1 0.83 17.0 0.79 17.0 0.68

19.7 0.81 19.3 0.83 18.7 0.85 18.3 0.87 18.1 0.89 18.0 0.9 17.9 0.91 17.8 0.9 17.8 0.87 17.7 0.81

20.0 0.83 19.7 0.85 19.1 0.88 18.6 0.9 18.5 0.92 18.3 0.93 18.2 0.94 18.2 0.94 18.1 0.91 18.0 0.85

21.0 0.86 20.0 0.88 19.5 0.9 19.0 0.92 18.8 0.95 18.6 0.96 18.6 0.97 18.5 0.97 18.4 0.95 18.3 0.9

21.0 0.91 21.0 0.94 20.0 0.96 19.7 0.98 19.5 1 19.3 1.02 19.2 1.03 19.1 1.04 19.1 1.02 18.9 0.98

22.0 0.95 21.0 0.97 21.0 0.99 20.0 1.01 19.9 1.04 19.7 1.06 19.6 1.07 19.5 1.08 19.4 1.06 19.3 1.03

1364 12921569 1502 1433

1545 1477

1/3

1/2

3/4

1

2455 76921699

1639 1364 1292 1212

2425 75981676 1407 1337 12621611

1573 1505 1435

1414 1342 1269 1186

583824

1392 1320 1246 1161

7363

1601 1534 1464

1620 1553 1484

2375 7441

1208

2268 71061558 1490

2325 7285

2350

1418 1344 1269

1437 1362 12862200 6893

1507 697

1258 1176 1092

2150 67361470 1397 1321 1242 1163

2075 65011413 1137

1981 62071342 997

1019 909

1262 1178 1092

1900 59531281 1197

1825 57181224 1135

849

1775 55611186 1094 999

1730

895

1650 5170

1700 5326

1675 5248

1596 50011047 944

530

752 540

783

990

1625

1200 3760

1300 4073

1500 4700

892

547

728 573

972

772

861 737

811 678

201

643 437

554

1/4

1100 3447

1000 3133

1400 4387

900 2820460

HP RPM

TIP

SPEED

(FPM)0.250" SP

1634

1151 1057

953

1016

1100

1043 946 815

1109

50911070

1191

1072

1123

5420

886

1109 1011 909

1089

968

845988

1128 1032 932 814

2.000" SP0.500" SP 0.750" SP 1.000" SP 1.250" SP 1.500" SP 1.750" SP

1052

1084

659

795

874

980

1115

1176

1209

2.250" SP

914

953

992

1064

1102

2.500" SP

798

787

843

923

970

FAN CAPACITY - CUBIC FEET PER MINUTE (CFM)

460

614

834 681 381

480

627

720863

589

629

339677

512747

959

497749

306696870

Performance shown is for installation type B: Free Inlet, Ducted Outlet. Power rating (BHP) includes drive losses. For further information on estimating belt drivelosses and motor service factors see page 14. FanSizer software automatically includes drive losses. The sound ratings shown are for loudness values in fan sonesat 5'0" (1.5m) in a hemispherical free field per AMCA Standard 301. Values shown are for installation Type B: free inlet fan sone levels. Performance ratings do notinclude the effects of appurtenances in the airstream. For further information on sound classification, see page 29. For accessories see pages 6 and 7.

PENNBARRY

17


1.000

1.500

2.000

3.000

3.500

2.500

0.000

0.500

0 1000 2000 3000 4000

1/4 HP

3/4 HP

1/3 HP

1/2 HP

RPM

BHP


1 HP

2 HP

1161 RPM

1258 RPM

1441 RPM

1649 RPM

1787 RPM

2044 RPM

2251 RPM

1 1/2 HP

22 14 1/2 19 7/8

22 27

23 1/8

STAT

IC P

RESS

URE

- Inc

hes W

.G.


3.6 0.09

5.6 0.15 5.2 0.12

8.0 0.29 7.6 0.30 7.5 0.27

8.8 0.33 8.4 0.35 8.2 0.34

9.1 0.36 8.7 0.37 8.5 0.37

9.6 0.42 9.2 0.43 8.9 0.44 9.0 0.38

10.3 0.49 10.0 0.51 9.6 0.52 9.6 0.50

10.8 0.53 10.5 0.55 10.1 0.56 10.0 0.55 10.1 0.40

11.6 0.60 11.2 0.62 10.8 0.64 10.6 0.63 10.6 0.58

12.5 0.69 12.2 0.72 11.7 0.73 11.3 0.74 11.3 0.71 11.5 0.50

13.2 0.79 12.9 0.82 12.5 0.83 12.1 0.85 12.0 0.84 12.1 0.77

13.7 0.84 13.4 0.87 13.1 0.89 12.7 0.90 12.4 0.90 12.5 0.85

14.2 0.89 13.9 0.92 13.5 0.94 13.1 0.95 12.8 0.95 12.8 0.92 13.0 0.72

14.9 0.95 14.5 0.98 14.1 1.00 13.7 1.02 13.3 1.02 13.4 0.99 13.5 0.90

15.5 1.00 15.1 1.03 14.7 1.05 14.2 1.07 13.8 1.08 13.8 1.06 13.8 0.99

16.2 1.06 15.8 1.10 15.4 1.12 14.9 1.14 14.4 1.15 14.2 1.14 14.3 1.08 14.5 0.82

16.8 1.15 16.5 1.18 16.2 1.21 15.8 1.23 15.4 1.24 15.1 1.24 15.1 1.21 15.1 1.09

17.5 1.24 17.2 1.28 17.0 1.31 16.8 1.33 16.5 1.34 16.2 1.35 16.1 1.32 16.1 1.25 16.2 0.88

18.3 1.34 18.1 1.38 18.0 1.41 17.8 1.43 17.7 1.45 17.5 1.45 17.4 1.44 17.3 1.40 17.4 1.24

19.5 1.48 19.3 1.52 19.1 1.55 19.0 1.58 18.9 1.60 18.7 1.61 19.0 1.61 19.0 1.58 18.9 1.50 18.8 1.18

20.0 1.55 19.9 1.59 19.7 1.62 19.4 1.65 19.2 1.67 19.0 1.68 19.2 1.69 19.2 1.67 19.1 1.60 19.1 1.41

21.0 1.66 21.0 1.70 21.0 1.74 20.0 1.77 20.0 1.79 19.7 1.81 19.6 1.81 19.6 1.80 19.6 1.75 19.6 1.64

23.0 1.78 22.0 1.82 22.0 1.86 21.0 1.89 21.0 1.91 21.0 1.93 20.0 1.94 20.0 1.94 20.0 1.91 20.0 1.83

23.0 1.84 23.0 1.89 22.0 1.92 22.0 1.96 22.0 1.98 21.0 2.00 21.0 2.01 21.0 2.01 21.0 1.98 21.0 1.92

24.0 1.91 23.0 1.95 23.0 1.99 22.0 2.02 22.0 2.04 22.0 2.06 21.0 2.08 21.0 2.08 21.0 2.06 21.0 2.01

24.0 1.97 24.0 2.02 23.0 2.05 23.0 2.09 22.0 2.11 22.0 2.13 22.0 2.15 21.0 2.15 21.0 2.14 21.0 2.09

1397

1582

1003

906

1761

1957 1486

2126 1761

1045

1439

1609

10371740

HP RPM

TIP

SPEED

(FPM)


0.250" SP 0.500" SP 0.750" SP 1.000" SP 1.250" SP 1.500" SP 1.750" SP 2.000" SP 2.250" SP 2.500" SP

775 2847948

925 33981309 645

1507

1225 45001923 1660

1161 42651800

1273

1737 1384

1325 48672113 1890 1591

1258 46211986

1400 51432255 2053 1792 1420

1892 1560 767

1747

1441

1500 55102443 2264

52932332 2140

1284

1575 57852583 2415 2206 1968 1621

2032

1649 60572721 2559 2374 2148 1869

788

1685 61902787 2628 2452 2235 1978

1715 63002843 2686 2516 2307 2067

1755 64472917 2763 2601 2400 2185 1877

1787 65642976 2824 2668 2474 2264 1985

1825 67043045 2896 2748 2562 2357 2104

1875 68873137 2990 2852 2676 2478 2254

1925 70713228 3085 2951 2787 2597 2400

1975 72553320 2179 3048 2894 2714 2523 2284 1991 1477

2044 75083446 3310 3181 3040 2873 2690 2490 2226 1878 1168

2330 2024 14993241 3105 2943 2765

2125 78063593

25812075 7622

3502 3368

3462 3337 3210 3057 2883 2705 2483 2216 1839

2175 79893684 3556 3432 3314 3165 2999 2827 2632 2385 2076

2200 80813729 3602 3480 3363 3218 3057 2887 2706 2469 2192

2225 81733775 3649 3527 3412 3271 3115 2947 2285

2251 82693822 3697 3577 3462 3326 3009 2841 2624

2777 2546

2373

1/4

1/3

1/2

3/4

1

1 1/2

2

989

3174


AIR FLOW - CFM

PENNBARRY




18


23 1/8

22 16 1/4 19 7/8

22 27

0 500 1000 1500 2000 2500 3000 3500 4000 4500

1/4 HP

3/4 HP

1/3 HP

1/2 HP

RPM

BHP


1 HP

1 1/2 HP

990 RPM

1073 RPM

1229 RPM

1407 RPM

1524 RPM

1744 RPM

1.000

1.250

1.500

1.750

2.000

2.250

2.500

0.000

0.500

0.750

0.250


8.6 0.23 8.2 0.22

9.1 0.25 8.8 0.26

9.9 0.29 9.6 0.30

10.2 0.31 9.9 0.32

10.4 0.34 10.1 0.35 9.8 0.29

10.5 0.36 10.3 0.37 10.1 0.34

10.8 0.40 10.6 0.41 10.5 0.40

11.1 0.44 10.9 0.46 10.9 0.46

11.7 0.49 11.4 0.50 11.4 0.51

12.0 0.54 11.7 0.55 11.8 0.57 11.7 0.50

12.4 0.59 12.1 0.60 12.1 0.62 12.1 0.58

13.2 0.68 13.0 0.71 13.0 0.72 12.9 0.71

13.6 0.74 13.4 0.76 13.4 0.77 13.5 0.78 13.2 0.68

14.0 0.80 13.9 0.82 13.9 0.84 14.1 0.85 13.8 0.78

14.4 0.84 14.3 0.87 14.2 0.88 14.5 0.90 14.3 0.86

14.8 0.90 14.7 0.93 14.6 0.94 14.9 0.95 14.8 0.93

15.2 0.95 15.1 0.98 15.0 1.00 15.2 1.01 15.3 1.00 15.2 0.87

15.5 1.00 15.4 1.04 15.3 1.05 15.5 1.07 15.8 1.08 15.7 0.98

15.9 1.07 15.8 1.10 15.6 1.12 15.8 1.13 16.3 1.14 16.2 1.07

16.2 1.13 16.2 1.17 16.0 1.18 16.1 1.20 16.8 1.21 16.7 1.17

16.6 1.19 16.6 1.23 16.3 1.25 16.4 1.26 17.1 1.28 17.2 1.25 17.1 1.10

17.0 1.25 17.0 1.30 16.7 1.32 16.6 1.33 17.3 1.35 17.8 1.34 17.6 1.23

17.4 1.32 17.4 1.37 17.2 1.39 16.9 1.41 17.6 1.42 18.4 1.43 18.2 1.34

17.8 1.39 17.8 1.44 17.6 1.46 17.3 1.48 17.9 1.50 18.8 1.51 18.8 1.44 18.5 1.21

18.4 1.49 18.4 1.54 18.2 1.57 17.8 1.58 18.2 1.60 19.2 1.61 19.6 1.58 19.4 1.43

1

1 1/2

2296 17391744 7248

3842 3616

2096 1350

3373 3109 2849 2628

2985 2735 25001705 7086

3747 3512 3265

1675 69613673 3433 3182 2892 2648 2399 1926

2267 17321645 6837

3600 3353 3097 2800 2560

1615 67123526 3273 3010 2712 2471 2127 1480

1807

2922 2623 2376 19761585 6587

3453 3192

1555 64633379 3111 2834 2534 2277

1524 63343302 3027 2736 2443 2172 1610

13681495 6213

3231 2948 2642 2359 2038

1465 60893156 2867 2549 2271 1896

1435 59643082 2784 2457 2182 1738

3707

2264 1967 12982605

2373 2090 1573

1335 55482825 2505 2159 1813

1407 58483012

3/4

1370 56942916

1265 52572641 2300 1956 1449

2184 1845 1194

2062 1715

1150 47792335 1941 1541

1/2

1190 49462442

1229 51082545

1337

1073

1110 46132228 1823

44592128

1/3

1714 1105

1050 43642065 1647 894

1462

1020 42391983 1559

950 39481789 1310

1140

1/4

915 38031687

990 41151901

1.750" SP 2.000" SP 2.250" SP 2.500" SPHP RPM

TIP

SPEED

(FPM)


0.250" SP 0.500" SP 0.750" SP 1.000" SP 1.250" SP 1.500" SP


PENNBARRY


Alum. Side Panel = 0.051 in Damper Size = 22 in (sq) Max. RPM = 1835 (1 1/2 HP)

Galv. Corner Post = 16 gauge Max. Mtr. Frame Size = 213T Est. Ship. Wts. (galv/alum) = 90/62 lbsAIR FLOW - CFM

STAT

IC P

RESS

URE

- Inc

hes W

.G.

19

SX125BHCCentrex Inliner

22 16 1/4 19 7/8

22 27

23 1/8

0 100 2000 3000 4000 5000

1/4 HP

3/4 HP

1/3 HP

1/2 HP

RPM

BHP


1 HP

2 HP

3 HP

1 1/2 HP

1093 RPM1185 RPM

1357 RPM

1554 RPM

1683 RPM

1926 RPM

2121 RPM

2428 RPM

1.000

1.500

2.000

4.500

2.500

3.000

4.000

3.500

0.000

0.500

AIR FLOW - CFM

STAT

IC P

RESS

URE

- Inc

hes W

.G.


9.1 0.28

9.2 0.29

10.4 0.38 10.5 0.27

11.7 0.49 11.8 0.45

12.5 0.56 12.6 0.56 13.0 0.48

13.6 0.64 13.6 0.65 13.8 0.63

14.5 0.70 14.5 0.72 14.6 0.72 15.0 0.59

15.8 0.82 15.8 0.83 15.9 0.85 16.0 0.81

16.4 0.89 16.5 0.91 16.6 0.92 16.7 0.91 17.1 0.77

17.3 0.97 17.4 0.99 17.6 1.01 17.6 1.01 17.8 0.94

17.5 1.02 17.6 1.05 17.8 1.07 17.9 1.08 18.1 1.04 18.7 0.81

18.1 1.19 18.2 1.22 18.4 1.24 18.5 1.26 18.7 1.26 19.0 1.19 20.0 0.91

18.6 1.29 18.7 1.32 18.8 1.34 19.0 1.36 19.1 1.37 19.4 1.34 20.0 1.18

19.1 1.39 19.2 1.43 19.3 1.45 19.5 1.47 19.6 1.49 19.8 1.48 20.0 1.39 21.0 1.09

19.5 1.50 19.6 1.54 19.8 1.56 19.9 1.59 20.0 1.61 20.0 1.61 21.0 1.57 21.0 1.39

19.8 1.58 19.9 1.63 20.0 1.66 20.0 1.68 20.0 1.70 21.0 1.71 21.0 1.69 21.0 1.58

20.0 1.67 20.0 1.72 20.0 1.76 20.0 1.78 21.0 1.80 21.0 1.82 21.0 1.81 22.0 1.75

21.0 1.77 21.0 1.82 21.0 1.86 21.0 1.88 21.0 1.90 21.0 1.92 21.0 1.93 22.0 1.89 24.0 1.35

21.0 1.88 21.0 1.94 21.0 1.98 22.0 2.00 22.0 2.03 22.0 2.05 22.0 2.06 22.0 2.05 23.0 1.70

22.0 1.96 22.0 2.02 22.0 2.06 22.0 2.09 22.0 2.11 22.0 2.14 23.0 2.15 23.0 2.15 24.0 1.89

23.0 2.17 23.0 2.23 23.0 2.28 23.0 2.32 24.0 2.34 24.0 2.37 24.0 2.39 24.0 2.40 24.0 2.31

24.0 2.32 24.0 2.38 24.0 2.43 24.0 2.47 24.0 2.50 24.0 2.52 24.0 2.55 24.0 2.57 25.0 2.53 26.0 2.09

24.0 2.47 24.0 2.53 24.0 2.59 25.0 2.63 24.0 2.66 25.0 2.69 25.0 2.71 25.0 2.74 25.0 2.73 25.0 2.45

25.0 2.63 25.0 2.69 25.0 2.75 25.0 2.79 25.0 2.83 25.0 2.86 25.0 2.88 25.0 2.91 26.0 2.93 26.0 2.77

26.0 2.80 26.0 2.85 26.0 2.92 26.0 2.96 26.0 3.01 26.0 3.03 26.0 3.06 26.0 3.09 26.0 3.12 26.0 3.04

26.0 2.90 26.0 2.95 26.0 3.01 27.0 3.06 27.0 3.11 27.0 3.14 27.0 3.16 27.0 3.19 27.0 3.23 27.0 3.18

691

4226 2372

1/4

1/3

1/2

3/4

1

1 1/2

2

3

790

3544 3405 32322428 10091

4101 3969 3828 2863

3155 2776 2242

3684

1959

2400 99754169 4041 3908 3764 3419 3478 3332

3357 3195 3014 2612

2870 2420 1639

2350 97674067 3935 3798 3649 3502

1293

3685 3532 3384 3236 3057

3107 2206

2562 1952

2300 95593965 3827

2250 93513862 3720 3571 3416 3265 2917 2717

2200 91433757 3611 3457 3299 3145 2970 2776

2750 2536 2291 14663439 3274 3113 29502121 8815

3590

1275

2440 21722090 8686

3524 3370 12523202 3039 2866 2662

2298 1973 713

2146 1764

2045 84993429 3268 3097 2931 2742 2530

1984 1520

2005 83333343 3177 3004 2835 2631 2407

1807

1965 71673257 3084 2910 2735 2519 2283

2817 2629 2406 21601926 8005

3172 2996

1196

1875 77933062 2877 2696 2488 2250 1964 1511

2575 2348 2095 17461825 7585

2952 2761

2446 2203 1919 14711775 7377

2839 2644

1683 69952629 2425 2191 1918 1506 792

2346 2098 1802 1310

1600 985

1554 64592329 2095 1806 1371

66502436

1874 1524 862

2221 1949

1650 68582553

20221425 5922

1475 61302142

1600

1724 1288

1357 56401845 1508 870

486

1275 52991616 1154

1185 49251340

1100 4572976

1093 4543936

2.250" SP 2.500" SP 3.000" SP 3.500" SPHP RPM

TIP

SPEED

(FPM)


0.750" SP 1.000" SP 1.250" SP 1.500" SP 1.750" SP 2.000" SP


PENNBARRY








7.6 0.19 7.5 0.19

9.0 0.29 8.9 0.29 8.9 0.27

9.3 0.32 9.3 0.33 9.3 0.32

9.8 0.36 9.8 0.37 9.7 0.37 9.8 0.25

10.7 0.47 10.7 0.49 10.7 0.48 10.7 0.47

11.3 0.54 11.3 0.56 11.2 0.56 11.3 0.55 11.4 0.47

12.4 0.65 12.4 0.68 12.4 0.69 12.4 0.68 12.3 0.66 12.5 0.45

13.6 0.79 13.6 0.82 13.5 0.85 13.5 0.84 13.4 0.83 13.4 0.79

13.9 0.86 13.9 0.89 13.9 0.92 13.9 0.91 13.9 0.90 13.9 0.88 13.9 0.75

14.4 0.93 14.3 0.97 14.3 0.99 14.3 0.99 14.4 0.98 14.4 0.97 14.4 0.90

14.9 1.00 14.8 1.04 14.8 1.06 14.8 1.07 14.9 1.06 14.9 1.05 14.9 1.01 15.0 0.75

15.5 1.09 15.5 1.14 15.5 1.16 15.5 1.18 15.6 1.17 15.6 1.16 15.6 1.14 15.6 1.04

16.5 1.21 16.5 1.26 16.5 1.29 16.5 1.31 16.5 1.31 16.5 1.30 16.5 1.28 16.5 1.23 16.5 1.01

17.6 1.34 17.5 1.39 17.5 1.42 17.5 1.45 17.5 1.45 17.5 1.44 17.5 1.43 17.4 1.41 17.4 1.32

18.7 1.48 18.7 1.54 18.6 1.57 18.5 1.60 18.5 1.61 18.4 1.60 18.4 1.59 18.4 1.58 18.3 1.53 18.2 1.38

19.9 1.62 19.8 1.69 19.7 1.72 19.6 1.75 19.5 1.77 19.4 1.77 19.3 1.75 19.3 1.74 19.2 1.72 19.1 1.64

20.0 1.70 20.0 1.77 20.0 1.80 20.0 1.83 20.0 1.86 20.0 1.85 19.9 1.84 19.8 1.83 19.7 1.81 19.6 1.75

21.0 1.78 21.0 1.85 21.0 1.88 21.0 1.91 21.0 1.95 21.0 1.94 20.0 1.93 20.0 1.92 20.0 1.91 20.0 1.86

22.0 1.86 21.0 1.93 21.0 1.97 21.0 2.00 21.0 2.03 21.0 2.03 21.0 2.03 21.0 2.01 21.0 2.00 20.0 1.97

22.0 1.96 22.0 2.03 22.0 2.07 22.0 2.11 21.0 2.14 21.0 2.15 21.0 2.14 21.0 2.13 21.0 2.12 21.0 2.09

22.0 2.12 22.0 2.19 22.0 2.24 22.0 2.27 22.0 2.31 22.0 2.33 22.0 2.32 22.0 2.31 22.0 2.30 22.0 2.29

23.0 2.30 23.0 2.38 23.0 2.43 23.0 2.47 23.0 2.50 22.0 2.54 22.0 2.53 22.0 2.52 22.0 2.51 22.0 2.50

24.0 2.50 23.0 2.58 23.0 2.64 23.0 2.67 23.0 2.71 23.0 2.75 23.0 2.76 23.0 2.75 23.0 2.74 23.0 2.72

24.0 2.71 24.0 2.78 24.0 2.85 24.0 2.89 24.0 2.93 24.0 2.96 24.0 2.99 24.0 2.98 24.0 2.97 24.0 2.96

25.0 2.81 24.0 2.89 24.0 2.96 24.0 3.00 24.0 3.04 24.0 3.08 24.0 3.12 24.0 3.11 24.0 3.10 24.0 3.08

25.0 2.92 24.0 3.00 24.0 3.07 24.0 3.11 24.0 3.15 24.0 3.19 24.0 3.22 24.0 3.22 24.0 3.21 24.0 3.20

2448

22872663

2607 2223 1675

3060 2800

18562324

2526 2112

937

16072145

12492003

1713

1935 1257

709

2

3

1180

1531

5075 4922

5004 4848

4925 4768

4463 4279 4090 38834769 46161923 9408

5331 5204

4383 4191 4000 37844693 45381900 9296

5264 5136

4290 4096 3899 36764611 44541875 9173

5192 5062

4102 3902 3686 34574769 4607 4446 42841825 8929

5046 4913

3912 3706 3471 32354611 4445 4279 41131775 8684

4900 4763

3720 3494 3252 3009

2772

1725 84404755 4613 4463 4282 4111 3931

3761 3644 3300 3051

3170 2916 2604

1680 82194623 4478 4309 4134 3959

1650 80734535 4388 4213 4035 3856 3647 3423

3551 3317

3210 2949

1625 79504462 4312 4133 3952 3771

3102 2837

1600 78284389 4236 4053 3869 3683 3455

2888

1575 77064315 4159 3972 3785 3589

4006

3358

3813 3620 3405

2425

3646 3446 3210 2945 2661

3163

1475 72164021 3846

2506

1425 69723873 3688 3481 3271 3016 2728

3529 3315 3083 2810

1 1/2

1375 67273725

1526 74664171

1333 65223600 3395 3174 2923 2630 2316 1874

2140 16293288 3062 2796 2486

3175 2942 2660 2332

1

1265 61893398

1300 63603502

1231 60233296 3064 2821 2519 2179

17373052 2797

2546 2219 1821

2515 2168

1134

1025 50152663 2375 2004

580

1902 1403

1621

3/4

1075 52592820

1/2

1150 5626

2053

866 42372152 1762

1232750 3669

1766

900 44032263

1/4

1/3

939 45942389

1.750" SP 2.000" SP 2.250" SP 2.500" SPHP RPM

TIP

SPEED

(FPM)


0.250" SP 0.500" SP 0.750" SP 1.000" SP 1.250" SP 1.500" SP


PENNBARRY20

SX155BC Centrex Inliner

0 1000 2000 3000 4000 5000 6000

1/4 HP

3/4 HP

1/3 HP

1/2 HP

RPM

BHP


1 HP

2 HP

3 HP

1 1/2 HP

866 RPM939 RPM

1075 RPM

1231 RPM

1333 RPM

1526 RPM

1680 RPM

1923 RPM

2.000

2.500

3.000

3.500

4.000

4.500

0.000

1.000

1.500

0.500

AIR FLOW - CFM

STAT

IC P

RESS

URE

- Inc

hes W

.G.

28 18 7/8 25 7/8

28 33

26 1/2





8.3 0.23

9.9 0.29 9.4 0.27

10.3 0.32 9.9 0.32

10.6 0.36 10.1 0.37

11.1 0.44 10.5 0.47 10.1 0.37

12.0 0.53 11.3 0.56 10.8 0.53

12.8 0.61 12.0 0.65 11.4 0.64

13.3 0.69 12.6 0.73 11.8 0.74 11.6 0.62

13.8 0.78 13.1 0.82 12.3 0.84 12.1 0.78

14.4 0.85 13.6 0.88 12.8 0.92 12.5 0.88

14.9 0.92 14.2 0.96 13.5 1.00 13.0 0.97 12.8 0.78

15.4 0.98 14.8 1.03 14.0 1.07 13.4 1.05 13.2 0.93

16.3 1.10 15.7 1.15 15.0 1.19 14.2 1.20 14.1 1.13

17.3 1.22 16.6 1.27 16.0 1.31 15.2 1.34 14.9 1.29 14.6 1.09

18.1 1.34 17.6 1.40 16.8 1.44 16.1 1.48 15.6 1.45 15.4 1.33

18.7 1.46 18.1 1.52 17.4 1.56 16.8 1.61 16.1 1.59 15.9 1.51 15.7 1.202

19.1 1.54 18.6 1.60 17.9 1.65 17.3 1.70 16.5 1.70 16.3 1.64 16.1 1.42

19.5 1.63 19.0 1.69 18.3 1.74 17.8 1.79 17.0 1.81 16.8 1.76 16.5 1.60

19.9 1.72 19.5 1.79 18.8 1.83 18.3 1.89 17.6 1.92 17.2 1.88 17.0 1.75

20.0 1.82 19.9 1.89 19.3 1.93 18.8 1.99 18.1 2.03 17.6 2.00 17.4 1.90 17.1 1.60

21.0 1.92 20.0 1.99 19.8 2.04 19.3 2.09 18.7 2.15 18.0 2.13 17.9 2.06 17.6 1.85

21.0 2.09 21.0 2.16 21.0 2.21 20.0 2.26 19.5 2.33 18.8 2.32 18.5 2.27 18.3 2.13

22.0 2.26 22.0 2.34 21.0 2.40 21.0 2.45 20.0 2.51 19.6 2.54 19.2 2.50 19.0 2.40 18.8 2.16

23.0 2.50 23.0 2.58 22.0 2.65 22.0 2.69 21.0 2.75 21.0 2.81 20.0 2.79 19.9 2.73 19.7 2.57 19.4 2.18

23.0 2.70 23.0 2.78 23.0 2.85 23.0 2.90 22.0 2.96 22.0 3.03 21.0 3.03 21.0 2.98 20.0 2.88 20.0 2.64

24.0 2.87 24.0 2.95 23.0 3.02 23.0 3.07 23.0 3.13 22.0 3.20 22.0 3.23 21.0 3.19 21.0 3.12 21.0 2.93

3

4589 4265 37691582 7740

5952 5744

4408 4047

5512 5282 5058 4842

5138 4911 4688

3111

3724 3048 2197

1550 75835824 5609 3459 27525372

1510 73875663 5440 5197 4958 4727 4486 4176

4222 3855 3248 2480

2835

1460 71435461 5227 4976 4730 4494

1420 69475300 5056 5798 5457 5305 3995 3548

3592

3188 23974623 4368 4108 37621381 6756

5142 4888

1355 66295036 4776 4507 4248 3975 2929 2036

1330 65074936 4667 4394 4132 3839 3417 2670

3201 24001305 6384

4833 4559 4281 4016 3697

1280 62624731 4450 4168 3898 3553 2965 2082

2717 17044340 4054 3774 33994629

1 1/2

1140 55774152

2

1220 59694485 4186

1255 6140

3893 3597 3165 2352

18581180 5773

4320 4009 3709 3379 2817

3831

19463315 2861

3524 3148 2422

1096 53623966 3633

5616 3183 2653 1590

1040 50883728 3380 3028 2371

3251 2870 20871012 4951

3609

1070 52353856

3/4

1

970 47453428 3059 2619 1607

1886

2326930 4550

3255 2873

884 43253054 2652

1/2

830 40612815 2364 1250

1721

772 37772555 2002

1/3

740 36202411

712 34832282 1438

1/4

660 32292043

1.750" SP 2.000" SP 2.250" SP 2.500" SPHP RPM

TIP

SPEED

(FPM)


0.250" SP 0.500" SP 0.750" SP 1.000" SP 1.250" SP 1.500" SP


PENNBARRY 21


26 7/8

28 18 7/8 25 7/8

28 33

0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500

3.500

3.250

3.000

2.750

2.500

2.250

2.000

1.750

1.500

1.250

1.000

0.750

0.500

0.250

0.000

1/4 HP

3/4 HP

1/3 HP

1/2 HP

RPM

BHP


1 HP

2 HP

3 HP

1 1/2 HP

712 RPM772 RPM

884 RPM

1012 RPM

1096 RPM

1255 RPM

1381 RPM

1582 RPM

AIR FLOW - CFM

STAT

IC P

RESS

URE

- Inc

hes W

.G.

PENNBARRY22


25 7/8

28 33

0 1000 2000 3000 4000 5000 6000 7000 8000

2.750

2.500

2.250

2.000

1.750

1.500

1.250

1.000

0.750

0.500

0.250

0.000

1/4 HP

3/4 HP1/3 HP

1/2 HP

RPM

BHP


1 HP

2 HP

3 HP

1 1/2 HP

634 RPM687 RPM

787 RPM

901 RPM

976 RPM

1118 RPM

1230 RPM

1408 RPM 26 7/8

21


4.9 0.19

6.3 0.29

6.8 0.33

7.4 0.37 7.0 0.35

8.2 0.42 7.6 0.42

9.2 0.48 8.3 0.50

10.2 0.54 9.0 0.56

11.5 0.61 9.7 0.65

12.4 0.70 10.3 0.75 10.2 0.72

13.3 0.79 10.9 0.84 10.9 0.84

14.0 0.85 11.5 0.90 11.3 0.91

14.8 0.91 12.2 0.97 11.9 0.99

15.5 0.99 13.0 1.05 12.4 1.07 12.1 1.01

16.5 1.09 14.1 1.15 13.1 1.19 12.9 1.16

17.3 1.20 15.0 1.27 13.6 1.32 13.6 1.31

18.0 1.32 15.9 1.39 14.2 1.45 14.3 1.45 13.9 1.32

18.8 1.46 16.9 1.54 14.9 1.60 15.0 1.61 14.8 1.57

19.6 1.59 17.8 1.66 15.7 1.73 15.6 1.76 15.4 1.74

20.0 1.71 18.6 1.79 16.6 1.86 16.2 1.90 16.1 1.89 15.8 1.71

21.0 1.82 19.5 1.90 17.4 1.97 16.7 2.02 16.7 2.02 16.4 1.92

22.0 1.93 20.0 2.01 18.2 2.09 17.2 2.14 17.3 2.15 17.0 2.09

23.0 2.09 22.0 2.18 19.6 2.26 18.1 2.32 18.1 2.34 17.9 2.32

24.0 2.26 23.0 2.36 21.0 2.44 19.3 2.50 19.0 2.54 18.8 2.53 18.7 2.41

25.0 2.47 24.0 2.57 23.0 2.65 21.0 2.73 20.0 2.78 19.9 2.78 19.8 2.72

26.0 2.69 26.0 2.79 24.0 2.88 23.0 2.97 22.0 3.02 21.0 3.04 21.0 3.02 21.0 2.85

27.0 2.86 27.0 2.96 26.0 3.05 24.0 3.14 23.0 3.20 22.0 3.23 22.0 3.21 22.0 3.11

HP RPM

TIP

SPEED

(FPM)


0.250" SP 0.500" SP 0.750" SP 1.000" SP 1.250" SP 1.500" SP 1.750" SP 2.000" SP 2.250" SP 2.500" SP

1/4

550 29162062

634 33612702

1/3

660 34992875

687 36423049 1925

720 38172345

40033478 2710

787 41723676 2995

755

825 43743809 3306

865 45864147

925 49044498

3603 2682

901 47774358 3851

3322

3074

950 50364642 4174 3549

4012

976 51744792 4341 3772 2800

1010 53544988 4557 4046 3225

4310 35981045 5540

5188 4777

4080 57265387

2

4995 4557 3947 2916

1118 59275602 5229 4815 4279 3478

1150 60975783 5425 5025 4543 3830

1180 62565951 5608 5218 4780 4143 3121

1205 63883092 5758 5378 4965 4391

1230 65216231 5905 5537 5144 4613 3873

3567

1265 67066427 6110 5757 5384 4912 4251

1300 68926622 6313 5976 5620 5192 4615 3831

1340 71046844 6545 6224 5880 5499 4989 4310

1380 73167065 6776 6471 6138 5786 5333 4734 3957

5977 55601408 7464

7220 6937 5024 4324

3

3259

1/2

3/4

1

1 1/2

6642 6316




28


AIR FLOW - CFM

STAT

IC P

RESS

URE

- Inc

hes W

.G.

23


0 1000 2000 3000 4000 5000 6000 7000 8000

3/4 HP1/2 HP

RPM

BHP


1 HP

3 HP

2 HP

5 HP

1 1/2 HP892 RPM

1107 RPM1022 RPM

1267 RPM

1395 RPM

1596 RPM

1893 RPM

2.000

2.500

3.000

3.500

4.000

4.500

0.000

1.000

1.500

0.500

26 7/8

28 21 25 7/8

28 33

AIR FLOW - CFM

STAT

IC P

RESS

URE

- Inc

hes W

.G.


8.2 0.31

9.4 0.56

10.7 0.73 10.9 0.71

11.3 0.84 11.5 0.85

12.2 0.97 12.3 0.99 12.6 0.94

12.8 1.05 12.9 1.07 13.1 1.06

14 1.25 14.1 1.28 14.2 1.29 14.5 1.22

14.9 1.41 15.0 1.43 15.1 1.46 15.3 1.44 15.7 1.18

15.8 1.55 15.8 1.57 15.9 1.61 16 1.61 16.2 1.52

16.3 1.66 16.4 1.69 16.5 1.73 16.6 1.74 16.8 1.7 17.4 1.2

17.1 1.8 17.2 1.85 17.2 1.89 17.3 1.91 17.5 1.91 17.7 1.76

17.8 1.94 17.9 2 18.0 2.03 18.0 2.06 18.2 2.06 18.3 1.99 19.0 1.32

18.2 2.02 18.3 2.08 18.4 2.11 18.4 2.15 18.6 2.15 18.7 2.11 19.1 1.83

18.8 2.2 18.9 2.28 19.0 2.3 19.0 2.35 19.2 2.37 19.3 2.37 19.6 2.25

19.4 2.37 19.5 2.46 19.6 2.5 19.6 2.54 19.8 2.57 19.9 2.57 20.0 2.52 20.0 2.27

20.0 2.58 20.0 2.67 20.0 2.72 20.0 2.76 20.0 2.8 21.0 2.81 21.0 2.81 21.0 2.69

21.0 2.7 21.0 2.79 21.0 2.86 21.0 2.88 21.0 2.94 21.0 2.95 21.0 2.96 21.0 2.88

21.0 2.82 21.0 2.92 21.0 2.99 21.0 3.01 21.0 3.07 21.0 3.09 22.0 3.1 22.0 3.06

21.0 2.93 21.0 3.02 21.0 3.11 22.0 3.13 22.0 3.18 22.0 3.22 22.0 3.23 22.0 3.21 23.0 2.35

22.0 3.21 22.0 3.32 22.0 3.41 22.0 3.45 22.0 3.49 22.0 3.54 23.0 3.56 23.0 3.56 23.0 3.33

23.0 3.49 23.0 3.6 23.0 3.7 23.0 3.77 23.0 3.79 23.0 3.85 23.0 3.88 23.0 3.9 24.0 3.8

23.0 3.79 23.0 3.9 24.0 4.01 24.0 4.1 24.0 4.13 24.0 4.17 24.0 4.23 24.0 4.25 24.0 4.24 25.0 3.74

25.0 4.1 25.0 4.22 25.0 4.33 25.0 4.43 25.0 4.48 25.0 4.51 25.0 4.57 25.0 4.61 25.0 4.63 26.0 4.4

26.0 4.36 26.0 4.49 26.0 4.6 26.0 4.71 26.0 4.78 26.0 4.8 26.0 4.86 26.0 4.91 26.0 4.94 26.0 4.84

27.0 4.59 27.0 4.73 27.0 4.85 27.0 4.96 27.0 5.05 27.0 5.07 27.0 5.12 27.0 5.18 27.0 5.23 27.0 5.18

29.0 4.72 29.0 4.86 29.0 4.98 29.0 5.09 29.0 5.19 29.0 5.22 29.0 5.25 29.0 5.32 29.0 5.38 29.0 5.37

HP RPM

TIP

SPEED

(FPM)


3.500" SP

1/2

800 4241987

892 47292204

3/4

975 51692793 2050

1022 54183081 2483

1

1075 56993373 2886 2127

1107 58693546 3106 2463

1 1/2

1175 62293909 3529 3024 2300

1225 64944170 3806 3393 2810 1660

1267 67174383 4034 3658 3159 2458

3862 3410 2822

2

1300 68924546

1375 72894911

1284

1340 71044741 4425 4092 3704 3187 2445

4212

4609 4284 3926 3462 2857 1164

1395 73965008 4714 4394 4051 3614 3068 2079

3

1440 76345224 4947 4637 4327 3952 3471 2828

1480 78465417 5145 4851 4549 4208 3778 3258 2401

1525 80855632 5366 5089 4796 4489 4117 3663 3060

1550 82175752 5488 5220 4931 4643 4294 3856 3332

1575 83505870 5609 5350 5066 4783 4453 4047 3570

1596 84615970 5711 5459 5179 4900 4585 4206 3759 1769

5

1650 87476224 5971 5729 5466 5195 4920 4593 4188 3106

1700 90126458 6212 5975 5729 5466 5204 4908 4566 3673

1750 92786689 6452 6219 5989 5733 5478 5218 4910 4132 2819

1800 95436915 6690 6461 6239 5998 5750 5502 5224 4531 3572

1840 97557096 6880 6653 6436 6208 5965 5722 5472 4835 4008

1875 99407254 7045 6821 6608 6390 6151 5913 5676 5097 4327

1893 100367334 7130 6908 6695 6483 6247 6011 5776 5226 4488

0.750" SP 1.000" SP 1.250" SP 1.500" SP 1.750" SP 2.000" SP 2.250" SP 2.500" SP 3.000" SP


PENNBARRY




24


33 1/4 26 30 1/4

33 1/4 36

30 1/2

3.000

2.750

2.500

2.250

2.000

1.750

1.500

1.250

1.000

0.750

0.500

0.250

0.0000 2000 4000 6000 8000 10000 12000

3/4 HP1/2 HP

RPM

BHP


1 HP

2 HP

3 HP

5 HP

1 1/2 HP575 RPM

656 RPM711 RPM

896 RPM

814 RPM

1026 RPM

1217 RPM


6.8 0.43

8.1 0.55 7.8 0.549

9.9 0.67 8.7 0.69

10.6 0.81 9.6 0.84

10.9 0.86 9.8 0.9 9.9 0.84

11.3 0.93 10.2 0.98 10.3 0.95

11.8 1.02 10.5 1.07 10.9 1.06

12.6 1.12 11.3 1.18 11.6 1.18

13.7 1.23 12.4 1.29 12.4 1.31

15.0 1.35 13.8 1.42 13.1 1.44 12.9 1.38

15.5 1.5 14.6 1.58 13.7 1.61 13.8 1.58

15.6 1.59 14.9 1.67 13.9 1.7 14.3 1.69

16.0 1.7 15.4 1.78 14.3 1.83 14.8 1.82

16.7 1.84 16.2 1.94 14.8 1.99 15.5 2 15.4 1.9

17.3 1.97 17.0 2.07 15.5 2.13 16.1 2.15 16 2.08

18.3 2.13 18.0 2.23 16.6 2.3 16.5 2.32 16.7 2.29

19.3 2.3 19.0 2.41 17.8 2.48 17.1 2.51 17.4 2.5 17.3 2.33

21.0 2.48 20.0 2.6 18.9 2.68 18.0 2.72 18.1 2.72 18 2.62

21.0 2.67 21.0 2.79 19.9 2.88 18.9 2.93 18.7 2.94 18.8 2.88

22.0 2.92 21.0 3.05 20.0 3.15 19.6 3.2 19.6 3.22 19.6 3.2 19.5 3.02

22.0 3.21 22.0 3.35 21.0 3.45 20.0 3.52 20.0 3.55 21.0 3.55 20.0 3.45

23.0 3.48 23.0 3.63 22.0 3.74 21.0 3.81 21.0 3.85 21.0 3.87 21.0 3.81 21.0 3.57

24.0 3.77 23.0 3.92 23.0 4.04 22.0 4.12 22.0 4.17 22.0 4.19 22.0 4.17 22.0 4.03

25.0 4.18 25.0 4.33 24.0 4.46 23.0 4.56 23.0 4.62 23.0 4.65 24.0 4.66 23.0 4.58 23.0 4.34

26.0 4.5 26.0 4.66 25.0 4.79 24.0 4.9 24.0 4.97 24.0 5.01 24.0 5.03 24.0 4.99 24.0 4.84

27.0 4.81 27.0 4.97 26.0 5.11 25.0 5.23 25.0 5.3 25.0 5.36 25.0 5.38 25.0 5.37 25.0 5.26 25.0 4.95

HP RPM

TIP

SPEED

(FPM)


1.750" SP1.500" SP1.250" SP1.000" SP0.750" SP0.500" SP

1/2

525 34103831

573 37224382 3145

3/4

615 39954839 3802

656 42615266 4343

1

670 43525407

711 46185817

4518 3182

690 44825608 4773 3628

5037 4012

1 1/2

735 47746055 5328 4392

760 49376302 5623 4752

785 50996548 5910 5086 3949

814 52886830 6239 5451 4512

2

830 53916983

875 56847412

896 58207611

6419 5654 4784

850 55217174 6635 5908 5091

6900 6220 5451 4357

7121 6475 5734 4789

3

920 59767838

945 61388074

995 64638544

7369 6762 6044 5217

7621 7051 6358 5611

970 63018310 7872

7620 6992 6321

4433

7336 6677 5979 5012

5492

1026 66658835 8431 7966 7373 6725 6005

8122

4927

5

1060 68869153 8767 8327 7782 7152 6513 5663

1090 70809433 9062 8644 8128 7535 6925 6197 5085

1120 72759712 9356 8957 8471 7912 7317 6667 5786

1160 753510084 9743 9361 8923 8399 7820 7246 6534 5500

1190 773010362 10030 9662 9254 8757 8203 7015 6179

1217 790510612 10287 9932 9541 9068

0.250" SP

5631

2.500" SP2.250" SP2.000" SP

8543 7995 7422 6698

7649


PENNBARRY

Galv. Side Panel = 20 gauge Alum. Corner Post = NA Peak BHP = (RPM/704)3

Alum. Side Panel = NA Damper Size = 33 1/4 in (sq) Max. RPM = 1257 (3 HP)

Galv. Corner Post = 14 gauge Max. Mtr. Frame Size = 213T Est. Ship. Wts. (galv/alum) = 245 lbsAIR FLOW - CFM

STAT

IC P

RESS

URE

- Inc

hes W

.G.

25


3.000

4.000

5.000

2.000

1.000

0.0000 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000

3/4 HP1/2 HP

RPM

BHP


1 HP

2 HP

3 HP

5 HP

1 1/2 HP

7 1/2 HP

848 RPM783 RPM

684 RPM

974 RPM

1451 RPM

1224 RPM

1069 RPM

1661 RPM

AIR FLOW - CFM

STAT

IC P

RESS

URE

- Inc

hes W

.G.


9.0 0.55

9.7 0.67

10.6 0.84 10.8 0.82

11.1 0.93 11.3 0.92

11.9 1.07 12.0 1.07 12.2 1

12.5 1.18 12.6 1.18 12.8 1.15

13.7 1.38 13.6 1.39 13.8 1.39 14.1 1.29

14.6 1.58 14.6 1.61 14.7 1.61 14.9 1.58 15.3 1.32

15.2 1.72 15.2 1.76 15.3 1.76 15.5 1.74 15.8 1.63

15.9 1.9 16.0 1.94 16.0 1.95 16.2 1.95 16.5 1.89

16.8 2.09 16.8 2.13 16.9 2.15 17.0 2.15 17.2 2.12 17.5 2

17.7 2.33 17.8 2.37 17.9 2.41 18.0 2.4 18.1 2.41 18.3 2.34 18.7 2.07

18.5 2.58 18.6 2.62 18.7 2.67 18.8 2.68 18.9 2.68 19.1 2.65 19.4 2.55

19.4 2.84 19.5 2.89 19.5 2.94 19.6 2.97 19.8 2.96 19.9 2.97 20.0 2.9 20.0 2.72

20.0 3.08 20.0 3.14 20.0 3.18 20.0 3.23 20.0 3.22 21.0 3.23 21.0 3.19 21.0 3.11

21.0 3.45 21.0 3.54 21.0 3.57 21.0 3.62 22.0 3.65 22.0 3.64 22.0 3.65 22.0 3.6 23.0 3.06

22.0 3.85 22.0 3.95 23.0 3.99 23.0 4.04 23.0 4.1 23.0 4.09 23.0 4.09 23.0 4.09 24.0 3.88

24.0 4.28 24.0 4.38 24.0 4.45 24.0 4.49 24.0 4.55 24.0 4.58 24.0 4.57 24.0 4.57 25.0 4.48 25.0 3.79

25.0 4.73 25.0 4.85 25.0 4.94 25.0 4.98 25.0 5.03 25.0 5.09 25.0 5.09 25.0 5.09 26.0 5.06 26.0 4.79

26.0 4.98 26.0 5.1 26.0 5.21 26.0 5.25 26.0 5.29 26.0 5.36 26.0 5.38 26.0 5.37 26.0 5.37 27.0 5.19

26.0 5.47 27.0 5.61 27.0 5.72 27.0 5.78 27.0 5.82 27.0 5.88 27.0 5.95 27.0 5.94 28.0 5.94 28.0 5.84

27.0 6.01 28.0 6.15 28.0 6.27 28.0 6.36 28.0 6.4 28.0 6.45 28.0 6.52 29.0 6.56 29.0 6.55 29.0 6.52

29.0 6.4 29.0 6.56 29.0 6.68 29.0 6.79 29.0 6.83 29.0 6.88 29.0 6.94 29.0 7.01 30.0 7 30.0 7.01

8930 8736

29.0 6.69 30.0 6.85 30.0 6.98 30.0 7.1 30.0 7.15 30.0 7.19 30.0 7.26 30.0 7.33 30.0 7.34 30.0 7.34

30.0 6.99 30.0 7.16 30.0 7.29 30.0 7.41 30.0 7.48 30.0 7.52 31.0 7.58 31.0 7.65 31.0 7.69 31.0 7.69

31.0 7.32 31.0 7.48 31.0 7.62 31.0 7.74 31.0 7.83 31.0 7.88 31.0 7.93 31.0 8 31.0 8.07 32.0 8.06

7080

HP RPM

TIP

SPEED

(FPM)


3.500" SP

1/2 684 44432184

3/4

725 47092626

783 50863168 2429

1

810 52623401 2742

848 55083716 3139 2286

1 1/2

875 56843934 3391 2709

925 60094318 3840 3274 2436

971 63074665 4224 3724 3130

2

1000 64964874

10355123 4733 4300

1919

4461 3992 3444 2647

3811 3201

1069 69445362 4993 4585 4129 3601

6723

2829

3

1110 72105648 5303 4923 4505 4039 3472 2485

1150 74705924 5595 5236 4847 4417 3927 3280

1190 77306199 5879 5543 5180 4785 4352 3842 3057

1224 79516430 6119 5801 5458 5083 4672 4211 3641

5

1275 82826775 6475 6178 5854 5509 5141 4737 4274 2676

1325 86077110 6821 6535 6235 5919 5573 5203 4809 3738

1375 89327442 7164 6887 6611 6306 5989 5654 5284 4446 2794

1425 92567761 7504 7236 6970 6688 6394 6075 5744 4987 3930

1451 94257927 7680 7416 7155 6884 6595 6291 5974 5263 4347

7 1/2

1500 97448237 8010 7754 7501 7248 6972 6692 6386 5730 4964

1550 100688553 8344 8097 7850 7606 7351 6800 6191 5502

1585 102968773 8576 8335 8093 7854 7613 7349 7085 6506 5859

1610 104588504 8266 8030 7795 7539 7279 6718 6094

1635 106219087 8895 8673 8438 8206 7974 7728 7472 6927 6327

1661 107899249 9061 8848 8617 8387 8159 7924 7672 7144 6567

0.750" SP 1.000" SP 1.250" SP 1.500" 1.750" SP 2.000" SP 2.250" SP 2.500" SP 3.000" SP


PENNBARRY


Alum. Side Panel = NA Damper Size = 33 1/4 in (sq) Max. RPM = 1715 (7 1/2 HP)

Galv. Corner Post = 14 gauge Max. Mtr. Frame Size = 213T Est. Ship. Wt.= 245 lbs

30 1/2

33 1/4 26 30 1/4

33 1/4 36

PENNBARRY26


39

3.000

2.750

2.500

2.250

2.000

1.750

1.500

1.250

1.000

0.750

0.500

0.250

0.0000 2000 4000 6000 8000 10000 12000 14000 16000

3/4 HP

RPM

BHP


1 HP

2 HP

3 HP

5 HP

1 1/2 HP

7 1/2 HP

622 RPM544 RPM

502 RPM

685 RPM

930 RPM

785 RPM

1065 RPM

40 1/2 30 7/8 37 1/2

40 1/2 44


5.9 0.42

11.2 0.82 8.5 0.843

11.4 0.9 8.8 0.94

11.9 1.02 9.5 1.07

12.6 1.17 10.6 1.22 10.0 1.2

13.7 1.31 11.9 1.39 10.8 1.39

14.8 1.49 13.3 1.58 11.6 1.6

14.9 1.58 13.6 1.68 11.8 1.71 11.8 1.6

15.0 1.68 14.0 1.8 12.1 1.83 12.3 1.77

15.2 1.8 14.3 1.92 12.5 1.95 12.9 1.92

15.5 1.96 14.8 2.09 12.9 2.13 13.6 2.12

16.0 2.17 15.3 2.31 13.8 2.36 14.4 2.39 14.2 2.24

16.9 2.39 16.2 2.54 14.8 2.62 14.7 2.65 15.3 2.58

17.9 2.63 17.2 2.79 16.0 2.88 15.1 2.92 16.3 2.89

19.1 2.89 18.4 3.06 17.2 3.17 16.0 3.21 17.4 3.22 17.1 3.08

20.0 3.22 19.1 3.4 18.1 3.53 17.0 3.58 17.6 3.61 18.3 3.53

21.0 3.51 19.7 3.7 18.8 3.85 17.7 3.91 17.8 3.94 19.3 3.91 19.0 3.71

22.0 3.88 21.0 4.08 20.0 4.25 19.0 4.33 18.4 4.37 20.0 4.39 20.0 4.27

23.0 4.28 23.0 4.49 22.0 4.67 21.0 4.78 19.9 4.82 21.0 4.86 22.0 4.8 21.0 4.59

25.0 4.71 25.0 4.92 24.0 5.12 23.0 5.25 22.0 5.31 22.0 5.34 23.0 5.35 23.0 5.22

27.0 5.01 26.0 5.23 25.0 5.44 24.0 5.58 23.0 5.65 23.0 5.69 23.0 5.72 24.0 5.62 23.0 5.34

28.0 5.32 27.0 5.55 27.0 5.76 26.0 5.92 25.0 6 24.0 6.04 24.0 6.08 24.0 6.03 24.0 5.86

8503

30.0 5.73 29.0 5.97 28.0 6.19 27.0 6.37 26.0 6.47 25.0 6.51 25.0 6.55 25.0 6.56 25.0 6.42

30.0 6.16 30.0 6.41 29.0 6.63 28.0 6.82 27.0 6.95 26.0 7 26.0 7.04 26.0 7.08 27.0 6.99 26.0 6.8

31.0 6.61 30.0 6.87 30.0 7.09 29.0 7.3 28.0 7.45 27.0 7.51 27.0 7.56 27.0 7.6 27.0 7.58 27.0 7.42

31.0 6.98 31.0 7.25 30.0 7.48 30.0 7.7 29.0 7.86 28.0 7.94 27.0 7.98 28.0 8.03 28.0 8.05 28.0 7.92

HP RPM

TIP

SPEED

(FPM)


2.500" SP

3/4

400 32074486

502 40256366 4943

1

520 41696678 5370

544 43627090 5897

1 1/2

570 45707523

622 49878363

6430 4759

595 47707928 6917 5530

7424 6228

2

635 50918571 7666 6535

665 5332

4583

650 52118810 7938 6870 5209

9049 8207 7196 5722

685 54929366 8563 7611 6329

3

710 56939760 9004 8112 6992

760

735 589310153 9437

10544 9867 9060

5126

8591 7586 6115

8141 6907

785 629410933 10294 9522 8666 7593

6093

5941

5

815 653411398 10784 10061 9271 8329 7025

840 673511784 11189 10507 9755 8888 7780 6061

870 697512247 11672 11035 10320 9532 8575 7247

900 721612708 12153 11555 10878 10143 9286 8195 6577

930 745613168 12631 12071 11419 10733 9953 9014 7745

7 1/2

950 761713473 12949 12413 11777 11112 10379 9511 8395 6753

970 777713779 13265 12749 12133 11488 10790 9983 8985 7623

995 797814160 13660 13156 12574 11954 11292 10541 9657

1020 817814541 14053 13562 13010 12411 11781 11081 10274 9277 7941

1045 837814921 14445 13966 13442 12861 12254 11599 10852 9975 8837

1065 853915224 14758 14287 13787 13218 12630 12003 11298 10489 9474

0.250" SP 0.500" SP 0.750" SP 1.000" SP 1.250" SP 1.500" SP 1.750" SP 2.000" SP 2.250" SP



Alum. Side Panel = NA Damper Size = 40 1/2 in (sq) Max. RPM = 1113 (7 1/2 HP)

Galv. Corner Post = 14 gauge Max. Mtr. Frame Size = 215T Est. Ship. Wts. = 415 lbsAIR FLOW - CFM

STAT

IC P

RESS

URE

- Inc

hes W

.G.

27


27

0 2000 4000 6000 8000 10000 12000 14000 16000 18000 20000 22000 24000 26000

3.000

2.750

2.500

2.250

2.000

1.750

1.500

1.250

1.000

0.750

0.500

0.250

0.000

3/4 HP

RPM

BHP


1 HP

2 HP

3 HP

5 HP

10 HP

1 1/2 HP

7 1/2 HP

481 RPM437 RPM

381 RPM352 RPM

551 RPM

748 RPM

809 RPM

653 RPM49 1/2 37 7/16

46 1/2

49 1/2 48

44 1/4


5.6 0.52

7.6 0.8

8.2 0.91

8.7 0.99 8.9 1.03

10.2 1.21 10.8 1.33

11.9 1.44 11.6 1.58

13.8 1.66 12.6 1.82

15.7 1.88 14.0 2.05 13.1 2.13

16.6 1.98 14.8 2.16 13.8 2.26

18.3 2.21 16.1 2.41 14.8 2.54

19.1 2.53 17.1 2.74 15.6 2.9 15.2 2.81

19.8 2.75 17.9 2.97 16.2 3.14 15.9 3.18

21.0 3.11 19.4 3.34 17.7 3.53 17.0 3.66

23.0 3.51 21.0 3.75 19.8 3.96 18.4 4.13 18.1 3.99

26.0 3.94 24.0 4.2 22.0 4.43 20.0 4.6 19.8 4.67

26.0 4.46 25.0 4.74 23.0 5 22.0 5.19 21.0 5.35

27.0 4.79 25.0 5.1 24.0 5.36 22.0 5.57 21.0 5.75 21.0 5.7

28.0 5.22 26.0 5.53 25.0 5.8 24.0 6.04 22.0 6.21 22.0 6.31

29.0 5.66 28.0 5.99 26.0 6.27 25.0 6.53 23.0 6.72 23.0 6.88 23.0 6.62

30.0 6.13 29.0 6.48 28.0 6.77 26.0 7.04 25.0 7.25 24.0 7.44 24.0 7.41

32.0 6.57 31.0 6.94 30.0 7.24 28.0 7.53 27.0 7.76 25.0 7.94 25.0 8.04

33.0 6.88 32.0 7.26 31.0 7.57 29.0 7.86 28.0 8.1 26.0 8.29 26.0 8.44 25.0 8.14

34.0 7.28 33.0 7.67 32.0 7.99 31.0 8.28 30.0 8.54 28.0 8.74 27.0 8.94 26.0 8.83

36.0 7.7 35.0 8.1 34.0 8.42 33.0 8.73 32.0 9 29.0 9.22 28.0 9.43 27.0 9.43

37.0 7.98 36.0 8.39 35.0 8.72 34.0 9.03 33.0 9.32 31.0 9.55 29.0 9.75 28.0 9.84

38.0 8.24 37.0 8.66 36.0 9 35.0 9.31 33.0 9.61 32.0 9.84 29.0 10.04 29.0 10.18 28.0 9.89

HP RPM

TIP

SPEED

(FPM)


0.250" SP 0.500" SP 0.750" SP 1.000" SP 1.250" SP 1.500" SP

3/4

300 29215916

352 34277923

1

370 36028559

381 37098936 6173

1 1/2

410 39929905 7750

437 425410782 8877

2

460 447811514 9788

481 468312175 10587 8429

3

490 477012455 10919 8907

510 496513073 11640 9836

535 520913839 12508 10864 8380

551 536414327 13048 11502 9495

5

575 559815055

653 635717353

13849 12436 10730

600 584115802 14669 13368 11832 9523

625 608516535 15471 14270 12832 11097

16362 15244 13938 12463

15818 14592 13196

7 1/2

670 652317848

710 691219008

11356

690 671818429 17522 16488 15333 13998 12440

16898

18141 17152 16065 14796 13416 11275

730 710719586 18757 17809 16769 15580 14287 12621

748 728220106 19309 18389 17398 16273 15021 13581

10

760 739920452 19676 18774 17805 16720 15499 14163 12150

775 754520884 20133 19253 18311 17273 16097 14849 13189

790 769121315 20589 19730 18813 17822 16692 15497 14006

800 778821602 20893 20046 19147 18180 17080 15906 14537

809 787621861 21165 20331 19447 18497 17427 16267 14975 13150

1.750" SP 2.000" SP 2.250" SP 2.500" SP


PENNBARRY



Galv. Corner Post = 14 gauge Max. Mtr. Frame Size = 215T Est. Ship. Wts. = 525 lbsAIR FLOW - CFM

STAT

IC P

RESS

URE

- Inc

hes W

.G.

28


60 44 57

60 54

49 1/2

.500

.250

.000

.750

.500

.250

.000

.750

.500

.250

.0000 2000 4000 6000 8000 10000 12000 14000 16000 18000 20000 22000 24000 26000 28000 30000 32000

3/4 HP

RPM

BHP


1 HP

2 HP

3 HP

5 HP

10 HP

1 1/2 HP

7 1/2 HP

366 RPM333 RPM290 RPM

268 RPM

419 RPM

570 RPM

627 RPM

497 RPM


4.6 0.53 4.1 0.6

5.8 0.71 5.2 0.8 5.0 0.77

6.8 0.88 6.2 0.98 5.7 1.06

8.1 1.05 7.4 1.17 6.8 1.28 6.7 1.2

8.9 1.28 8.2 1.41 7.7 1.53 7.4 1.6

9.4 1.41 8.8 1.55 8.3 1.68 7.8 1.78

9.8 1.53 9.4 1.67 8.9 1.8 8.2 1.93

10.4 1.66 10.0 1.82 9.6 1.95 8.8 2.09

11.1 1.85 11.0 2.01 10.5 2.15 9.8 2.29 9.2 2.21

12.1 2.06 12.0 2.24 11.6 2.38 10.9 2.53 10.0 2.62

12.9 2.29 13.1 2.48 12.8 2.63 12.2 2.78 10.8 3

13.4 2.44 13.7 2.63 13.6 2.79 13.2 2.94 11.4 3.19

14.9 2.8 15.4 3 15.8 3.18 15.4 3.34 13.6 3.66 12.7 3.44

16.2 3.18 16.8 3.39 17.5 3.58 17.0 3.75 15.4 4.09 13.9 4.19

17.8 3.59 18.0 3.81 18.1 4.03 18.0 4.2 16.8 4.55 14.9 4.81

19.3 3.97 19.1 4.2 19.0 4.43 19.0 4.61 18.2 4.97 15.8 5.3 15.5 5.04

20.0 4.4 20.0 4.64 20.0 4.87 20.0 5.07 20.0 5.45 17.3 5.82 16.4 5.89

21.0 4.78 21.0 5.03 21.0 5.27 21.0 5.49 21.0 5.87 18.8 6.26 17.1 6.47 17.1 5.77

22.0 5.19 22.0 5.44 22.0 5.68 22.0 5.92 22.0 6.32 20.0 6.71 17.8 7.02 17.8 6.65

24.0 5.61 23.0 5.87 23.0 6.12 23.0 6.37 24.0 6.78 22.0 7.19 18.9 7.57 18.5 7.5

25.0 5.91 24.0 6.17 24.0 6.43 24.0 6.69 24.0 7.11 24.0 7.52 20.0 7.94 19.0 8.04

26.0 6.37 26.0 6.64 26.0 6.91 25.0 7.18 26.0 7.62 26.0 8.04 22.0 8.47 19.9 8.7 19.9 8.15

28.0 6.7 27.0 6.97 27.0 7.24 26.0 7.51 26.0 7.97 27.0 8.4 23.0 8.84 20.0 9.14 20.0 8.8

28.0 7.03 28.0 7.31 27.0 7.58 27.0 7.86 27.0 8.33 27.0 8.78 24.0 9.21 21.0 9.57 21.0 9.46

29.0 7.38 29.0 7.66 28.0 7.94 28.0 8.22 27.0 8.71 28.0 9.16 25.0 9.6 22.0 10.02 21.0 10.1 21.0 9.2

30.0 7.8 29.0 8.09 29.0 8.38 29.0 8.66 28.0 9.17 28.0 9.63 26.0 10.09 23.0 10.54 22.0 10.71 22.0 10.08

HP RPM

TIP

SPEED

(FPM)


1.250" SP1.000" SP0.750" SP

7098

268 307810639 8921

240 27579156

5642

1 290 333111762 10212 8349

3/4

1 1/2

356112735 11346 9823 6603

333 3825

310

9477112091260313844

2

345 396314418

366 420415417

13249 11916 10437

355 407814894 13782 12497 11139

14363 13129 11833

3

380 436516079 15097 13914 12675 8142

395 453716786 15877 14738 13562 10282

410 470917490 16628 15553 14435 11797

419 481317911 17068 16037 14953 12532

5

440 505418891

480 551320749

18088 17156 16134 13990

460 528419822 19053

19250 18313 16388

9601

18208 17231 15201 12332

14197

497 570921535 20824 20113 19222 17381 15401

20012

11530

7 1/2

515 591622366 21679 20993 20176 18418 16577 13870

530 608823056 22389 21723 20964 19268 17483 15291 10104

545 626023746 23098 22449 21747 20097 18377 16468 12713

560 643224435 23804 23173 22525 20919 19261 17522 14705

570 654724894 24274 23653 23033 21463 19844 18181 15816

10

585 672025581 24977 24373 23768 22274 20712 19092 17137 13182

595 683426039 25445 24851 24257 22811 21286 19693 17896 14648

605 694926496 25912 25328 24743 23345 21856 20289 18603 15898

615 706426953 26379 25804 25229 23878 22415 20882 19303 17023 12341

627 720227502 26938 26374 25810 24513 23079 21587 20075 18083 14343

0.125" SP 0.250" SP 0.375" SP 0.500" SP 2.000" SP1.750" SP1.500" SP


PENNBARRY



Galv. Corner Post = 14 gauge Max. Mtr. Frame Size = 215T Est. Ship. Wts. = 725 lbs

AIR FLOW - CFM

STAT

IC P

RESS

URE

- Inc

hes W

.G.

PENNBARRY 29

Sound Data NotesCentrex Inliner

SOUND POWER LEVELSSince any mechanical device generates some sound energyinto the air, fans will create some noise. Because of the greatnumber of factors influencing sound output it is invalid tocompare fans based on RPM, tip speed or outlet velocity.The only accurate basis of comparison is the sound powerlevel generated by the fan at the required point of operation.

Having sound power levels for a specific fan at a specificoperating point allows the system designer to determine thetheoretical sound pressure level at any point in the occupiedspace. AMCA Publication 303 and the ASHRAE Guides pro-vide more information on this process. Another typical appli-cation of sound power levels is to compare similar fans.Generally differences of 6 dB in the 63 Hz band and 3 dB inall other bands are considered insignificant.

System designers use many methods to predict acousticacceptability of an occupied space.

The A-weighted sound pressure level provides a single num-ber that corresponds well to the human judgement of relativeloudness. OSHA bases their requirements regarding expo-sure to noise on A-weighted sound pressure levels. The dis-advantage of this method is that A-weighted sound pressurelevels do not provide information as to the quality of thesound. Noise Criteria (NC) curves are also widely used. Todetermine the NC level, the sound power spectrum is com-pared to defined limits. Other methods include RC curves,Sones, SIL and Noise Rating Curves.

Each method relies on sound pressure level informationbecause the human ear “hears” sound pressure fluctuations,not sound power (watts). Sound pressure is a function of the

attenuation of the space and the distance from the source.Consider a 100 watt light bulb. It provides adequate light fora closet, but not for a classroom, and in a stadium it wouldbe imperceptible. While the light source was the same power(100 watts), the brightness level changed dramatically.Similarly, the same sound power level (acoustical energy)produces greatly different sound pressure levels (noise).

Sone RatingsPennBarry has provided sone ratings to allow designers tomake an educated judgment as to the noise level a fan willdevelop in a space. Sone ratings are a loudness indexdeveloped from sound power level data. The calculation is at5’ from the fan inlet and in front of a reflecting plane (hardwall). Sones are weighted similarly to the A-weighting scalein that more weight is given to frequencies that people canhear “well” and less weight to frequencies that people do nothear “well”. A significant feature of the sone scale is that it islinear rather than logarithmic. This means that 40 sones is33% louder than 30 sones, as opposed to 40 dB being twiceas loud as 30 dB.

Since the sone rating is determined from well definedassumptions and is linear in nature, it is ideal for comparingdifferent fans moving air at the same CFM and SP. Whenusing sones for this purpose, differences of 3 sones are con-sidered negligible. The suggested loudness level chartbelow is a practical guideline for acceptable installed perfor-mance.

The sone values shown in this catalog are based on thesound power levels determined above, and calculated inaccordance with AMCA Standard 301 “Methods forCalculating Fan Sound Ratings from Laboratory Test Data.”

SUGGESTED LOUDNESS LEVEL

AREA SONE

LEVEL

NOISE

CRITERIA NCdBA (1) TYPES OF AREAS

Up to 9 32 to 54 35 to 60Bingo Hall, Auction Room, Hotel Ballroom, Social Club, Reception Room, Apartment House, Professional Office, Supervisor

Office, Courtroom, School and Classroom, Hospital Ward, Operating Room, Correction Facility.

Moderately

Quiet Sound

9.1 to 13 55 to 59 61 to 65Lobby/Corridor, Spectator Area, Chicken House, Greenhouse, General Open Office, Restaurant, Night Club, Department Sto

Ticket Sales Office, Casino, Spa, Control Room, Rail, Bus, Plane, Bowling Alley, Print Shop, Drafting Office, Convention Hall

re,Average

13.1 to 18 60 to 64 66 to 70Washroom & Toilet, Retail Shop, Bus Terminal Lounge, Foreman's Office, Cocktail Lounge, Office Hall & Corridor, Tabulation

Computation Office, Kitchen Cafeteria, Hotel Garage, Computer Room, Warehouse, Battery Charging Room

& Commercial

18.1 to 50 65 to 78 71 to 84General Storage Area, Restaurant Banquet Room, Swimming Pool, Supermarket, Hotel Kitchen and Laundry, Welding Booth

Department Store Main Floor, Paint Booth, Heat Treating Plant, Tool Maintenance Area

,High Sound

50.1 Plus 78.1 to 85+84.1 to 90+

(2)

Manufacturing Area, Heavy Machine Foundry, Assembly Line, Machine Shops, Punch Press Shop, Light Machine Area, Boile

Room, Emergency Generator Room, Pump House, Power Plant, Transformer, Steel Mill, Engine Test Room, Compressor

Room, Steel Stamping

rExt. Heavy

Industrial

Sound Classification Guide

(1) dBA range of A-weighted sound levels,in decibels.

(2) Sound levels this high are subject toOSHA Standards for safety, as well as stateand local ordinances. Sound attenuation provisions should be considered.

Source: ASHRAE, AMCA Publications.Notes:

Application

Centrex Inliner fans are widely used as clean air boosters inboth supply and exhaust systems where the installation of con-ventional blowers is impractical. Their compact design givesdesigners an excellent alternative to conventional blowers.

Fan LawsThe following section includes engineering and technicaldata, guidelines and system explanations related to air mov-ing and control devices. Fan laws and system descriptionsare consistent with industry standards, definitions andaccepted practices. This information is provided to assist sys-tem designers in sizing, selecting and defining their air mov-ing and control systems as well as explaining variables inher-ent in system design.

There are nine fan laws, three are of prime importance to theunderstanding of ventilation systems. These, together with anappreciation of fan types, should help avoid most problemswith poor airflow performance. These three laws assume thesame fan operating with air at a constant density.

1. Airflow and fan speed are directly proportional.

CFM1 is the original flow rate in cu. ft. per minute.CFM2 is the desired flow rate in cu. ft. per minute.RPM1 is the original rotational speed of the fan.RPM2 is the desired rotational speed of the fan.

2. Pressure varies as the square of the fan speed or airflow.

P1 is the original static pressure.P2 is the desired static pressure.

3. Power varies as the cube of fan speed.

BHP1 is the original brake horsepowerBHP2 is the desired brake horsepower

Interaction of Fan Curves & System CurvesA ventilation system using a Centrex Inliner may consist of afan with duct connected to the inlet side. Control dampers,grilles, registers and duct fittings may also be part of the sys-tem. The fan is the component in the system which providesenergy to the airstream to overcome the resistance to flow offthe other components. The determination of the “pressureloss” or “resistance to flow”, for the individual components canbe obtained from the component manufacturers. The determi-nation of pressure losses for ductwork and branch ductworkdesign is well documented in standard handbooks, such asthe ASHRAE Handbook of Fundamentals. The fan curveshown in Figure 1 is a typical fan performance curve, devel-oped through the actual testing of a fan in an air tunnel. Thefan is run at constant speed and constant air density. Whenthe fan is installed in the field, then it becomes part of the sys-tem. System curves are developed by using field tested dataand applying fan laws. The point of intersection of the systemcurve and the fan performance curve determines the actualflow volume. If the system resistance has been accuratelydetermined, and the fan properly selected, the performancecurves will intersect at the system design point (point A).

1

2

1

2

RPMRPM

CFMCFM

=

PENNBARRY30

Engineering NotesCentrex Inliner

CFM

Stat

ic P

ress

ure

- Inc

hes

W.G

.

Figure 1: Interaction of System Curvesand Fan Curves

BA

C

UNDER ESTIMATED S.P.RESULTS IN HIGH STATICLOW C.F.M.

FAN CURVE

DUCT

SYST

EM A

SYSTEM DESIGNPOINT

OVER ESTIMATED S.P.RESULTS IN LOW STATICHIGH C.F.M.

1.500

1.375

1.125

1.000

0.875

0.750

0.625

0.500

0.375

0.125

0 200 400 600 800 1000 1200 1400 1600 1800 2000

3

1

2

1

2

RPMRPM

BHPBHP

⎥⎦

⎤⎢⎣

⎡=

DUCT(by others)

DUCT(by others)

CENTREX Inliner

VIBRATIONHANGER

THREADED ROD(by others)

TO BUILDINGSTRUCTURE

Typical Field Installation

2

1

2

1

2

RPMRPM

PP

⎥⎦

⎤⎢⎣

⎡=

2

1

2

1

2

CFMCFM

PP

⎥⎦

⎤⎢⎣

⎡=

PENNBARRY 31


If the system resistance has been underestimated, then fancurves and system curves will not intersect at the systemdesign point. They will intersect at lower CFM (point B). If thesystem resistance has been overestimated, then the fancurve system curve will intersect at a higher CFM than thesystem design point (point C) (see Figure 1).

Effect of Change in Density, Altitude and Temperature Correction FactorsThe resistance of a duct system is dependent upon the den-sity of the gas flowing through the system. A gas density of0.075 lb/ft3 is standard in the fan industry.

Pressure and horsepower vary directly as the ratio of the gasdensity at the fan inlet to standard density. This density ratiomust always be considered when selecting fans. To select afan, pressure should be corrected to standard air density,0.075 lb/ft3, 70º F. at sea level. Static pressure at operatingcondition x correction factor=static pressure at standard.Refer to Table 1.

Table 1 Correction FactorsUnity Basis = Standard Air Density of 0.075 lb/ft3

At sea level (29.92 in. Hg barometric pressure)this is equivalent to dry air at 70° F.

Horsepower at standard ÷ correction factor = horsepower atoperating condition. Motors should be sized for highest den-sity conditions at which it is expected to operate.

Inlet System EffectFor roof mounted exhaust fans, the most common installa-tion problem is ductwork connection to the inlet side of thefan. Here are several design criteria for connecting ductworkto the fan. Keep a straight duct run twice the diameter of theinlet size immediately before the inlet of the fan. This will givethe air a chance to straighten out before entering the fan. Faninlet swirl and non-uniform inlet flow can often be correctedby inlet straightening vanes or guide vanes. Restricted faninlets located too close to walls, obstructions or restrictionscaused by a plenum or cabinet, will decrease the useableperformance of a fan. Cabinet clearance effect or plenumeffect must be considered a component part of the entire sys-tem; the pressure losses through the cabinet or plenumeffect is considered as a System Effect when determiningsystem characteristics. The backdraft damper is part ofexternal static pressure, and should be accounted for when

estimating system static pressure. Use a motorized backdraftdamper when the fan has a variable speed controller.

System EffectA System Effect Factor is a pressure loss which recognizesthe effect of fan inlet restrictions, fan outlet restrictions orother conditions influencing fan performance when installedin the system. Figure 2 illustrates deficient fan/system performance resulting from one or more undesirable flowconditions. It is assumed that the system pressure losses,shown in system curve A, have been accurately determined,and a suitable fan selected for operation at Point 1. However,no allowance has been made for the effect of the systemconnections on the fan’s performance. To compensate forthis System Effect, it will be necessary to add a SystemEffect Factor (SEF) to the calculated system pressure lossesto determine the actual system curve. The SEF for any givenconfiguration is velocity dependent and will, therefore, varyacross the range of flow volumes for the fan.

In Figure 2, the point of intersection between the fan perfor-mance curve and the actual system curve B is Point 4. Theactual flow volume will, therefore, be deficient by the differ-ence from 1-4. To achieve design flow volume, an SEF equalto the pressure difference between Point 1 and 2 shouldhave been added to the calculated system pressure lossesand the fan selected to operate at Point 2. Note that becausethe System Effect is velocity related, the difference repre-sented between Points 1 and 2 is greater than the differencebetween Points 3 and 4.

The SEF includes only the effect of the system configuration on the fan’s performance.

CURVE B – ACTUAL DUCTSYSTEM WITH SYSTEM EFFECT

CURVE A – CALCULATEDDUCT SYSTEM WITH NOALLOWANCE FOR SYSTEMEFFECT

SYSTEM EFFECT LOSS ATDESIGN VOLUME

SYSTEMEFFECT AT

ACTUALFLOW

VOLUME

FAN CATALOGPRESSURE-VOLUME CURVE

DEFICIENT

PERFORMANCE

DESIGN VOLUME

DES

IGN

PR

ESSU

RE

Deficient Fan/Duct System Performance System Effect Ignored

Reprinted from AMCA publication 201, Fans and Systems, with the expresswritten permission from the Air Movement and Control AssociationInternational, Inc., 30 West University Drive, Arlington Heights, IL 60004-1893.

TEMP

°F

ALTITUDE (FEET) WITH BAROMETRIC PRESSURE (Inches Hg)

0’ 500’ 1000’ 1500’ 2000’ 2500’ 3000’ 3500' 4000’ 4500’ 5000’

29.92 29.38 28.86 28.33 27.82 27.31 26.82 26.32 25.84 25.36 24.9

-40 0.79 0.81 0.82 0.84 0.85 0.87 0.88 0.9 0.92 0.93 0.95

0 0.87 0.88 0.9 0.92 0.93 0.95 0.97 0.99 1 1.02 1.04

40 0.94 0.96 0.98 1 1.01 1.03 1.05 1.07 1.09 1.11 1.13

70 1 1.02 1.04 1.06 1.08 1.1 1.12 1.14 1.16 1.18 1.2

80 1.02 1.04 1.06 1.08 1.1 1.12 1.14 1.16 1.18 1.2 1.22

100 1.06 1.08 1.1 1.12 1.14 1.16 1.18 1.2 1.22 1.25 1.27

PENNBARRY32


Inlet Duct ElbowsNon-uniform flow into a fan inlet is the most common causeof deficient fan performance. An elbow located at, or in closeproximity to the fan inlet will not allow the air to enter theimpeller uniformly. The result is less than cataloged air per-formance. (See Figure 3).

Inlet Vortex (Spin or Swirl)Another major cause of reduced performance is an inlet ductcondition that produces a vortex or spin in the airstreamentering a fan inlet.

The ideal inlet condition is one which allows the air to enter axi-ally and uniformly without spin in either direction. A spin in thesame direction as the impeller rotation (pre-rotation) reducesthe pressure volume curve by an amount dependent upon theintensity of the vortex. The effect is similar to the change in thepressure volume curve achieved by inlet vanes installed in afan inlet; the vanes induce a controlled spin in the direction ofimpeller rotation reducing the volume flow rate.

A counter-rotating vortex at the inlet may result in a slightincrease in the pressure-volume curve but the horsepowerwill increase substantially.

Inlet Turning VanesWhere space limitations prevent the use of optimum fan inletconnections, more uniform flow can be achieved by the use of turning vanes in the inlet elbow (see Figure 4).

Numerous variations ofturning vanes are avail-able from a single curvedsheet metal vane to multi-bladed “airfoil” vanes. Thepressure drop throughthese devices must beadded to the system pressure losses.

Spark Resistant ConstructionAMCA standards offer the following definitions and notesconcerning spark resistant construction:

C - The fan shall be so constructed that a shift in theimpeller or shaft will not permit two ferrous parts ofthe fan to rub or strike.

B - The fan shall have a non-ferrous impeller andnon-ferrous ring about the opening through which theshaft passes. Ferrous hubs, shafts and hardware areallowed, provided construction is such that a shift inimpeller or shaft will not permit two ferrous parts ofthe fan to rub or strike. Steps must also be taken toinsure that the impeller, bearings, and shaft are adequately attached and/or restrained to prevent alateral or axial shift in these components.

AMCA “B” construction is an option.

Notes:

1. No bearings, drive components or electrical components shall be placed inthe air or gas stream unless they are constructed or enclosed in such amanner that failure of the component cannot ignite the surrounding gasstream.

2. The user shall electrically ground on all fan parts.3. For this standard, non-ferrous shall be any material with less than 5% iron

or any other material with demonstrated ability to be spark resistant.4. The use of aluminum or aluminum alloys in the presence of steel which

has been allowed to rust requires special consideration. Research by theU.S. Bureau of Mines and others has shown that aluminum impellers rub-bing on rusty steel may cause high-intensity sparking.

The use of the above standard in no way implies a guaran-tee of safety for any level of spark resistance. Spark resistantconstruction does not protect against ignition of explosivegases caused by catastrophic failure or from any airstreammaterial that may be present in a system.

Metric EquivalentsFor your convenience, the table below provides conversionfactors from English to Metric.

LENGTHOF DUCT

TURNINGVANES

CATEGORY AMCA STANDARD /

ENGLISH UNIT

x CONVERSION

FACTOR= METRIC (SI) UNIT

VOLUME FLOW CFM 0.00047195 cu. meter per sec. (m3/s)

PRESSURE Inches (wg) 248.36 pascal (Pa or N/m2)

POWER H.P. 745.7 watt (W or J/s)

TEMPERATURE Fahrenheit (°F) (°F + 459.67)/1.8 kelvin

HEAT Btu 1.055 kilojoules (kj)

TIP SPEED ft/M 0.00508 meter per second (m/s)

SPEED RPM 0.016 rev. per second (rps)

VELOCITY Ft/M 0.00508 meter per second (m/s)

DIMENSIONS

Inches 25.4 millimeter (mm)

Feet 0.3048 meter (m)

Square Feet 0.0929 square meter (m2)

Cubic Feet 0.0283 cubic meter (m3)

Figure 4

Reprinted from AMCA publication 201, Fans and Systems, with the expresswritten permission from the Air Movement and Control AssociationInternational, Inc., 30 West University Drive, Arlington Heights, IL 60004-1893.

Reprinted from AMCA publication 201, Fans and Systems, with the express writtenpermission from the Air Movement and Control Association International, Inc., 30 West University Drive, Arlington Heights, IL 60004-1893.

Figure 3

NON-UNIFORM FLOW INDUCEDINTO FAN INLET BY A

RECTANGULAR INLET DUCT

NON-UNIFORM FLOW INTO A FANINLET INDUCED BY A 9O° 3 - PIECE

SECTION ELBOW. NO TURNING VANES

PENNBARRY 33

Sample SpecificationsCentrex Inliner

Direct Drive FansDirect drive Centrifugal Square Inline fan shall be CentrexInliner SX, manufactured by PennBarry, Richardson, TX75081. The housing shall utilize galvanized steel (aluminumoptional) “corner post” framework and panels. Units shall beequipped with three removable access panels. Units shall bepre-wired to a junction box on the exterior and equipped withan electrical disconnect switch (not Explosion Proof). Twosupport angles shall be provided.

Statically and dynamically balanced backward inclined centrifugal wheels shall be aluminum, spark-resistant, non-overloading, and matched to deeply spun venturis. Motorsshall be continuous duty, permanently lubricated, multi-speed (for applicable models), have thermal overload pro-tection, mounted out of the main airstream (except TotallyEnclosed), be easily accessible for service, and furnished atthe specified voltage, phase. Each fan shall bear the AMCALicensed Ratings Seal for Air and Sound Performance, andshall be UL and CSA listed.

Belt Drive FansBelt driven Centrifugal Square Inline fan shall be CentrexInliner SX, manufactured by PennBarry, Richardson, TX75081. The housing shall utilize galvanized steel (aluminumoptional some sizes) “corner post” framework and panels.Units shall be equipped with three removable access panels.Units shall be pre-wired to a junction box on the exterior andequipped with an electrical disconnect switch (not ExplosionProof). Two support angles shall be provided.

Statically and dynamically balanced backward inclined, centrifugal wheels shall be aluminum, spark-resistant, non-overloading, and matched to deeply spun venturis. Motorsshall be continuous duty, ball bearing design, permanentlylubricated, mounted out of the main airstream, and furnishedat the specified voltage, phase, and enclosure. Shafts shallbe turned, ground, polished, & rust protected. Heavy dutyball bearings are rated for a minimum L50 life exceeding200,000 hours. Pulleys shall be adjustable, cast iron,machined, keyed, securely attached, and sized for 150% ofthe horsepower at its rated maximum speed. Each fan shallbear the AMCA Licensed Ratings Seal for Air and SoundPerformance, and shall be UL and CSA listed.

AXIAL / GRAVITY PRODUCTS

CENTRIFUGAL PRODUCTS

OTHER PENNBARRY PRODUCTS

For more information contact your local PennBarry SalesManufacturer Representative or visit us at www.PennBarry.com

©2005 PennBarry™ All Rights Reserved. February 2005

DomexCentrifugal Roof Exhausters

Fumex FatrapKitchen Hood CentrifugalRoof Exhausters

ZephyrCeiling and Inline Fans

DynamoCentrifugal Blowers

BreezewayPropeller Wall Fans

HI-EXPower Roof Ventilator

AiretteGravity Intake/Relief Hood

VaneaxialInline Fans

Powered AiretteAxial Roof Ventilators

AxcentrixBifurcator Fan

Domex AxialAxial Roof Ventilators

TubeaxialInline Fans

Centrex InlinerCentrifugal Inline Fans

LC DynafanLow Contour CentrifugalRoof Exhausters

ESIEfficient SilentInline Fan

Fume ExhaustCurb MountedCentrifugal Fans

PENNBARRY34

One Year Limited WarrantyCentrex Inliner

What Products Are CoveredPennBarry Fans and Ventilators (each, a “PennBarry Product”)

One Year Limited Warranty For PennBarry ProductsPennBarry warrants to the original commercial purchaser that the PennBarry Products will be free from defects in materialand workmanship for a period of one (1) year from the date of shipment.

Exclusive RemedyPennBarry will, at its option, repair or replace (without removal or installation) the affected components of any defectivePennBarry Product; repair or replace (without removal or installation) the entire defective PennBarry Product; or refund theinvoice price of the PennBarry Product. In all cases, a reasonable time period must be allowed for warranty repairs to becompleted.

What You Must DoIn order to make a claim under these warranties:1. You must be the original commercial purchaser of the PennBarry Product.2. You must promptly notify us, within the warranty period, of any defect and provide us with any substantiation that we

may reasonably request.3. The PennBarry Product must have been installed and maintained in accordance with good industry practice and any

specific PennBarry recommendations.

ExclusionsThese warranties do not cover defects caused by:1. Improper design or operation of the system into which the PennBarry Product is incorporated.2. Improper installation.3. Accident, abuse or misuse.4. Unreasonable use (including any use for non-commercial purposes, failure to provide reasonable and necessary

maintenance as specified by PennBarry, misapplication and operation in excess of stated performance characteristics).5. Components not manufactured by PennBarry.

Limitations1. In all cases, PennBarry reserves the right to fully satisfy its obligations under the Limited Warranties by refunding the

invoice price of the defective PennBarry Product (or, if the PennBarry Product has been discontinued, of the mostnearly comparable current product).

2. PennBarry reserves the right to furnish a substitute or replacement component or product in the event a PennBarryProduct or any component of the product is discontinued or otherwise unavailable.

3. PennBarry's only obligation with respect to components not manufactured by PennBarry shall be to pass through thewarranty made by the manufacturer of the defective component.

GeneralThe foregoing warranties are exclusive and in lieu of all other warranties except that of title, whether written, oralor implied, in fact or in law (including any warranty of merchantability or fitness for a particular purpose).

PennBarry hereby disclaims any liability for special, punitive, indirect, incidental or consequential damages,including without limitation lost profits or revenues, loss of use of equipment, cost of capital, cost of substituteproducts, facilities or services, downtime, shutdown or slowdown costs.

The remedies of the original commercial purchaser set forth herein are exclusive and the liability of PennBarry with respectto the PennBarry Products, whether in contract, tort, warranty, strict liability or other legal theory shall not exceed theinvoice price charged by PennBarry to its customer for the affected PennBarry Product at the time the claim is made.

Inquiries regarding these warranties should be sent to: PennBarry, 1401 North Plano Road, Richardson, TX 75081

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