BOSS™ Pressurisation Units and Expansion Vessels

PRESSURISATION UNITS & EXPANSION VESSELS

69210 BOSS Pressurisation Brochure A4 16p_v8.indd 1 08/02/2013 09:41

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Traditional ‘open’ heating/chilled systems are provided with a feed and expansion tank, normally positioned above the highest point in the system. This feeds the system with water, accommodates expansion and replaces losses due to evaporation. However, this arrangement has several disadvantages:• Water has to be stored at high level• Open tanks need a lot of space and structural support• Air is allowed into the system causing corrosion• Use of high temperature systems is limitedThese limitations led to the design of the ‘Sealed System’ which minimises air intake and corrosion.

The Pressurisation Unit is designed to maintain initial system fill pressures and make-up losses due to water leakages, while the Expansion Vessel accommodates the expansion of water due to temperature/pressure fluctuations which eliminates the need for a conventional header tank.

Higher flow temperatures may be used in sealed systems, with larger temperature drops permitting lower water circulation rates, smaller pumps and reductions in pipework which when coupled with the replacing of the conventional header tank, associated pipework and lagging all leads to cost-savings.

The BOSS range of sealed system pressurisation units has a range of models including mechanical units and digital units. An addition to the range is the BOSS Digifiller which comes pre-set to suit cold fill pressures of up to two bar, along with a pre-set expansion vessel if required. All the BOSS pressurisation units with their varying range of features offer benefits for a sealed system.

The BOSS range of Pressfill Pressurisation Units comprises of four high performance pressurisation models available with varying features, all compliant with BS7074 code of practice, EMC regulations, machinery and low voltage directives. They are designed for use on LTHW, MTWH and Chilled Sealed System applications in either domestic or industrial sites.

The BOSS Expansion Vessel range comprises of two types of units. There is a fixed diaphragm style vessel suitable for use on heating and chilled water systems up to 6 bar pressure and the other is a higher rated vessel with replaceable diaphragm, suitable for use on heating, chilled and potable water applications for up to 10 bar.

Where the connection is to be a permanent arrangement, the Water Regulations Guide recommends the use of a ‘type CA backflow preventor with different pressure zones’.In premises other than a house when backflow risk is more severe, the minimum protection should be a ‘type BA backflow preventor with reduced pressure zones’ (RPZ valve).

Introduction to Sealed System and Typical Schematic Diagram

Typical Schematic Diagram

Temporary connection to be removed and supply pipe sealed immediately after filling

NB: Pipework from the system to the expansion vessels and pressurisation unit should not be lagged


AIR SEPARATION AND DIRT REMOVAL

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Options and Feature Selection Table

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Mechanical Units Digital Units

Type AX1-5 MX1-3HL

MX2-3HL AX1-5E AX2-5E MX1-

3EMX2-

3EMD1-2.5E

MD2-2.5E

MD1-5.0E

MD2-5.0E PF1-5E PF2-5E

BSS Product Code 03510050 03510006 03510017 03510061 03510072 03510028 03510039 03510135 03510146 03510157 03510168 03510083 03510094

Pressure switch control * * *Microprocessor control with LED display * * * * * * * * * *

Number of pumps 1 1 2 1 2 1 2 1 2 1 2 1 2Maximum cold fill pressure (bar) 5.0 3.0 3.0 5.0 5.0 3.0 3.0 2.5 2.5 5.0 5.0 5.0 5.0

Auto changeover pumps * * * * *Full load current (Amps) 3.4 0.4 0.4 3.4 3.4 0.4 0.4 1.9 1.9 3.4 3.4 1.9 1.9Power usage (kW) 0.4 0.05 0.05 0.5 0.5 0.05 0.05 0.43 0.43 0.5 0.5 0.43 0.43Pump trip with VF contacts (N/O) * * * * * * * * * *

High/low alarm set points with auto react with VF contacts (N/O)

* * * * * * * * * *

Boiler interlock (N/C) * * * * * * * * * *Sensor fail with VF contacts (N/O) * * * * * * * * * *

Low water detection * * * * * * * * * *Mechanical high/low pressure switches with VFC (N/C)

* *

Flood protection * * * * * * * * * *Audible alarm * * * * * * * * * *System quick-fill mode * * * * * * * *Pump pulse option * * * * * * * * * *

Password protection * * * * * * * * * *Service reminder * * * * * * * * * *Event logging for -pump start * * * * * * * * * *

-pump run hours (individual pumps) * * * * * * * * * *

-electrical interruption * * * * * * * * * *-common alarm * * * * * * * * * *System connection BSP ½"M ¼"F ¼"F ½"M ½"M ¼"F ¼"F ½"M ½"M ½"M ½"M ½"M ½"MWeight (kg) 20.2 7.8 7.8 19.7 27.4 7.8 7.8 13.5 16 14 16 29.7 38.4Excessive start alarm * * * * * * * * * *Dimensions -Width (mm) 445 210 210 445 445 245 245 245 360 360 360 480 480-Depth (mm) 640 150 150 640 640 150 150 245 276 276 276 330 330-Height (mm) 445 480 480 445 445 485 485 485 485 485 485 800 800

N/O = Normally open volt free contactN/C = Normally closed volt free contactPlease note: Electrical requirements for above systems 230V, 50Hz, 1 Phase

For BOSS Digifiller selection please see page 6


Mechanical Pressurisation Units

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TYPE AX1-5A competitively priced open baseplate mounted unit for systems not requiring extensive control features. We recommend High/Low pressure switch kits with this unit.

Code: 03510050

• MX and MXE press units must not be used to fill a system, use a BOSS filling loop. For details see page 14

• Standard pressurisation equipment must not be used to introduce water treatment, we recommend the use of a BOSS pressfill glycol unit or a BOSS dosing pot

• BSS recommend that all units are commissioned by approved agents and failure to do so may invalidate warranty. Please contact AMS for further details

TYPE MX1-3HL/MX2-3HLCompact wall mounted mini unit for large domestic above 45kW or small commercial applications. Complete with High and Low pressure switches and volt free contact. Suitable for heating systems needing up to 300 ltr vessels and chilled systems needing up to 50 ltr vessels.

Codes: 03510006 / 03510017

TYPE HIGH/LOW PRESSURE SWITCH KITSAvailable as a basic kit with high and low pressure switches and manifold. Also available with a wiring centre, VFC relay and neon indication.

Code: 03510113 (With VFC) Code: 03510102 (Basic)



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Digital Pressurisation Units

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TYPE AX1-5E/AX2-5EA competitively priced open baseplate mounted unit with user-friendly microprocessor providing a minimum system pressure requirement. The processor allows for low and high pressure monitoring and system diagnostic tools.

Codes: 03510061 / 03510072

TYPE MX1-3E/MX2-3ECompact wall mounted mini unit for large domestic above 45kW or small commercial applications. With accurate control and simple system diagnostics. Suitable for heating systems needing up to 300 ltr vessels and chilled systems needing up to 50 ltr vessels. Filling loop or similar required for initial system fill (see page 14).

Codes: 03510028 / 03510039

TYPE MD1-2.5E/MD2-2.5E AND MD1-5.0E/MD2-5.0ECompact wall mounted unit with user-friendly microprocessor providing a minimum system pressure requirement. The processor allows for low and high pressure monitoring and system diagnostic tools.

Codes: 03510135 / 03510146 / 03510157 / 03510168

TYPE PF1-5E/PF2-5ECompact, totally enclosed unit with user-friendly microprocessor providing a minimum system pressure requirement. The processor allows for low and high pressure monitoring and system diagnostic tools.

Codes: 03510083 / 03510094


BOSS Digifiller

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The new BOSS Digifiller is a compact, totally enclosed digital pressurisation unit with electronic pressure transducer and user-friendly microprocessor for use on sealed systems in order to provide a minimum system pressure requirement.

TypeSize of Vessel BOSS Digifiller 1.0 BOSS Digifiller 1.5 BOSS Digifiller 2.0- 18300022 18300033 183000444 Litre 18300258 18300472 183006868 Litre 18300269 18300483 1830069712 Litre 18300280 18300494 1830070518 Litre 18300291 18300502 1830071625 Litre 18300310 18300513 1830072735 Litre 18300321 18300524 1830073850 Litre 18300332 18300535 1830074980 Litre 18300343 18300546 18300760100 Litre 18300354 18300557 18300771150 Litre 18300365 18300568 18300782200 Litre 18300376 18300579 18300793250 Litre 18300387 18300590 18300801300 Litre 18300398 18300609 18300812350 Litre 18300406 18300620 18300823400 Litre 18300417 18300631 18300834500 Litre 18300428 18300642 18300845600 Litre 18300439 18300653 18300856800 Litre 18300450 18300664 183008671000 Litre 18300461 18300675 18300878

FEATURES OF BOSS DIGIFILLER:• Pre-set cold fill options: 1.0, 1.5, 2.0 bar• Not restricted by mains pressure• System fill (user options) compliant with UK

water authority best practice• Factory setting certificate• Pre-set expansion vessel• BOSS Digifiller has all the features and benefits of

the MD1-2.5E with a choice of cold fill options and optional pre-set expansion vessels up to 1000 Litre

• Customised Digifiller options available on request

Please note: Lower bar Digifillers are available



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Special Pressurisation Equipment

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Dimensions

Type Vessel Size Litre

Width (mm)

Depth (mm)

Height (mm)

Conn. BSP Male

Dry Weight (Kg)

Order code

BOSS Pressfill Paks AX1 RangeBOSS PRESSFILL PAK AX1-5E5 1PH 50 665 932 520 ½" 34 82311115BOSS PRESSFILL PAK AX1-5E8 1PH 80 665 1314 576 ½" 38 82311126BOSS PRESSFILL PAK AX1-5E10 1PH 100 665 979 799 ½" 46 82311137BOSS PRESSFILL PAK AX1-5E15 1PH 150 665 979 1049 ½" 50 82311148BOSS PRESSFILL PAK AX1-5E20 1PH 200 665 979 1325 ½" 62 82311159BOSS PRESSFILL PAK AX1-5E30 1PH 300 665 1095 1365 ½" 81 82311170BOSS PRESSFILL PAK AX1-5E40 1PH 400 790 1285 1205 ½" 101 82311181BOSS PRESSFILL PAK AX1-5E60 1PH 600 790 1285 1563 ½" 119 82311192BOSS PRESSFILL PAK AX1-5E80 1PH 800 790 1285 1913 ½" 153 82311200BOSS PRESSFILL PAK AX1-5E100 1PH 1000 790 1285 2293 ½" 172 82311211BOSS Pressfill Paks AX2 RangeBOSS PRESSFILL PAK AX2-5E5 1PH 50 665 932 520 ½" 41 82321121BOSS PRESSFILL PAK AX2-5E8 1PH 80 665 1314 576 ½" 45 82321132BOSS PRESSFILL PAK AX2-5E10 1PH 100 665 979 799 ½" 53 82321143BOSS PRESSFILL PAK AX2-5E15 1PH 150 665 979 1049 ½" 57 82321154BOSS PRESSFILL PAK AX2-5E20 1PH 200 665 979 1325 ½" 69 82321165BOSS PRESSFILL PAK AX2-5E30 1PH 300 665 1095 1365 ½" 88 82321176BOSS PRESSFILL PAK AX2-5E40 1PH 400 790 1285 1205 ½" 108 82321187BOSS PRESSFILL PAK AX2-5E60 1PH 600 790 1285 1563 ½" 126 82321198BOSS PRESSFILL PAK AX2-5E80 1PH 800 790 1285 1913 ½" 160 82321206BOSS PRESSFILL PAK AX2-5E100 1PH 1000 790 1285 2293 ½" 179 82321217BOSS Pressfill Paks PF1 RangeBOSS PRESSFILL PAK PF1-5E5 1PH 50 495 807 845 ½" 44 82311329BOSS PRESSFILL PAK PF1-5E8 1PH 80 519 889 845 ½" 48 82311340BOSS PRESSFILL PAK PF1-5E10 1PH 100 495 854 849 ½" 56 82311351BOSS PRESSFILL PAK PF1-5E15 1PH 150 495 854 1099 ½" 60 82311362BOSS PRESSFILL PAK PF1-5E20 1PH 200 495 854 1375 ½" 72 82311373BOSS PRESSFILL PAK PF1-5E30 1PH 300 600 970 1405 ½" 91 82311384BOSS PRESSFILL PAK PF1-5E40 1PH 400 790 1160 1255 ½" 111 82311395BOSS PRESSFILL PAK PF1-5E60 1PH 600 790 1160 1613 ½" 129 82311403BOSS PRESSFILL PAK PF1-5E80 1PH 800 790 1160 1963 ½" 163 82311414BOSS PRESSFILL PAK PF1-5E100 1PH 1000 790 1160 2343 ½" 182 82311425BOSS Pressfill Paks PF2 RangeBOSS PRESSFILL PAK PF2-5E5 1PH 50 495 807 845 ½" 46 82321335BOSS PRESSFILL PAK PF2-5E8 1PH 80 519 889 845 ½" 50 82321346BOSS PRESSFILL PAK PF2-5E10 1PH 100 495 854 849 ½" 58 82321357BOSS PRESSFILL PAK PF2-5E15 1PH 150 495 854 1099 ½" 62 82321368BOSS PRESSFILL PAK PF2-5E20 1PH 200 495 854 1375 ½" 74 82321379BOSS PRESSFILL PAK PF2-5E30 1PH 300 600 970 1405 ½" 93 82321390BOSS PRESSFILL PAK PF2-5E40 1PH 400 790 1160 1255 ½" 113 82321409BOSS PRESSFILL PAK PF2-5E60 1PH 600 790 1160 1613 ½" 131 82321420BOSS PRESSFILL PAK PF2-5E80 1PH 800 790 1160 1963 ½" 165 82321431BOSS PRESSFILL PAK PF2-5E100 1PH 1000 790 1160 2343 ½" 184 82321442

BOSS Pressfill Paks - 6.0 bar (g)Microprocessor controlled sealed system package which consists of an expansion vessel and a BOSS pressurisation unit, both skid mounted with connecting hose.

BOSS Pressfill Paks options:• Quote gas charge when ordering • Width and depth dimensions variable

All special pressurisation equipment benefits from the features listed on page 8. BOSS Multiple Vessels available on request.


Special Pressurisation Equipment

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BOSS Pressfill Twin SystemCompact, totally enclosed unit with user-friendly microprocessor for use with BOSS expansion vessels in order to provide a minimum system pressure requirement. The processor allows for low and high pressure monitoring as well as system diagnostic tools.

BOSS Pressfill PlusCompact, totally enclosed unit providing combined pressurisation & differential pressure de-aeration (Pressure Step Degassing). Features two user-friendly microprocessors for independent control of pressurisation and de-aeration features.

BOSS Pressfill GlycolCompact, totally enclosed units with user-friendly microprocessor for use with BOSS expansion vessels in order to provide a minimum system pressure requirement. The processor allows for independent low and high pressure monitoring as well as system diagnostic tools for both systems. Glycol is introduced on demand from a dedicated Glycol storage tank.

Digital/Special Pressurisation Equipment Including:• Password protection for parameter entry• Neon power on indicator• WRAS approved break tank and float

valve• Electric pump, 230v 50Hz single phase• Electronic pressure transmitter• Normally closed, common fault, volt free

contact• Normally open volt free contacts for

high pressure, low pressure, transducer health and pump health (x2)

• Flood protection both as maximum pump run limiter in minutes and excessive demand alarm

• Event logging for pump start, individual pump run hours counter, electrical interruption, general alarm counter

• Pump start differential in 0.1 bar increments

• Pressure setting and alarm setting in 0.1 bar increments

• Non overlapping parameter entry

• Service reminder option (12 months)• Pump pulse option (2 second pulse if

inactive for 60 days), user activated option

• Systemfill option (continuous run until set pressure is reached or 24 hours maximum run time, which ever is sooner), user activated option

• RS485 connectivity• Variable ID number for installations with

multiple pressurization units (99 variants)

N.B For large scale commercial installations

Type Width (mm)

Depth (mm)

Height (mm)

Conn. BSP Male

Weight (Kg)

Order Code

BOSS Pressfill Twin System PFT-5E 480 330 800 ½" 39.4 03510220BOSS Pressfill Twin System PFT-8E 480 330 800 ½" 40 03510231

Type Width (mm)

Depth (mm)

Height (mm)

Conn. BSP Male

Weight (Kg)

Order Code

BOSS Pressfill Plus 250D 480 330 1160 ½" 51 03510253BOSS Pressfill Plus 280D 600 330 1160 ½" 60 03510264BOSS Pressfill Plus 2160D 650 450 1160 ½" 70 03510275

Type Width (mm)

Depth (mm)

Height (mm)

Conn. BSP Male

Weight (Kg)

Order Code

BOSS Glycol 125D 480 330 800 ½" 40 03510286BOSS Glycol 150D 480 330 800 ½" 42 03510297BOSS Glycol 225D 680 680 1410 ½" 81 03510305BOSS Glycol 280DS 680 680 1410 ½" 83 03510327

Glycol delivery percentage options 1 to 50%



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Flamcomat Pressurisation Equipment

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A unique product which combines all the essential elements required for a commercial heating or cooling system to be automatically pressurised, balanced and de-aerated in one highly efficient unit.

What It Does:The Flamcomat balanced pressure expansion equipment is sized according to the total system volume and the boiler / chiller load. The Flamcomat vessel is 80% efficient irrespective of the static height of the system. It is the ideal solution for large installations or a tall installation where standard diaphragm expansion equipment is limited.

The Flamcomat is a unique product that combines a balanced pressure system with an effective pressure step de-aerator function and an integral top up arrangement utilising an AB airgap.

The real-time LCD display shows the status of the mechanical components while monitoring the vessel contents and the system pressure.

A common alarm volt free contact is included within the Flamcomat control unit for remote indication of a fault. Remote analogue indication of the vessel contents and system pressure are possible as optional extras, as is a date chip for exact system logging.

• Low pressure de-aeration using the PALL ring process, which leads to a long life cycle and improved efficiencies

• Microelectronics using state-of-the-art surface mounting technology (SAM) gives low power usage, long life and ease of maintenance

• Manufactured to DIN 4807 with full CE approval• Available in fifteen vessel capacities with twin pump transfer sets• Additional vessel sizes available on request

Dimensions Connections

Pump Set Depth (mm) Width (mm) Height (mm) Vessel System Top-Up Approx Weight (Kg)

D0 680 680 1400 1 ½" 1 ¼" ½" 105D1 680 680 1400 1 ½" 1 ¼" ½" 110D2 680 680 1400 1 ½" 1 ¼" ½" 115D3 680 680 1400 1 ½" 1 ¼" ½" 150D4 680 680 1600 1 ½" 1 ¼" ½" 215D5 680 680 1600 1 ½" 1 ¼" ½" 225D6 680 680 1600 1 ½" 1 ¼" ½" 240

DimensionsType Capacity Ø (mm) Height (mm) Weight (Kg)

GB 150 150 550 1350 55GB 200 200 550 1530 70GB 300 300 550 2030 90GB 400 400 750 1535 130GB 500 500 750 1760 151GB 600 600 750 1955 160GB 800 800 750 2355 195

GB 1000 1000 750 2855 226GB 1200 1200 1000 2210 290GB 1600 1600 1000 2710 345GB 2000 2000 1200 2440 430GB 2800 2800 1200 3040 515GB 3500 3500 1200 3840 625GB 5000 5000 1500 3570 1240GB 6500 6500 1800 3500 1710GB 8000 8000 1900 3650 1830

GB 10000 10000 2000 4050 2025

Pump Set Dimensions and Connections


Sizing Expansion VesselsSystem water content = total volume of water in the system.

It is advisable to add 10% margin to allow for deviations.

Maximum water = by plotting this temperature on temperature Graph 1 the coefficient of expansion can be found. For chilled systems use the ambient temperature as the maximum. It is assumed that a pressurisation unit is being used.

Maximum allowable = maximum working pressure of the working pressure component having the lowest working pressure in the system, usually boiler safety valve setting in barg minus 0.3 barg. Basic CalculationVessel size = system water content + 10% x coefficient of expansion expansion vessel efficiencyExpansion vessel efficiency = (max. allow work pressure – 0.3 bar + 1 bar) – (initial system pressure + 0.3 bar + 1 bar) (max. allow work pressure – 0.3 bar + 1 bar)Please note units must be absolute i.e. gauge pressure + 1 bar.

Basic Sizing ExampleSystem water content = 1000 ltrsMaximum water temperature = 80°CMaximum allow working pressure = 3 barg – 0.3 bargInitial system pressure = 10 mtr static = 1 barg + 0.3 bargExpansion vessel efficiency = 3.7 – 2.3 = 0.38 3.7Vessel size = 1000 + 10% X 0.03 = 86.8 ltrs 0.38Use the nearest higher sized vessel e.g. BOSS 100 ltr heating vessel.

Systems Above 5 BarThe maximum pressure + safety valve setting – 15%

Systems Operating at Above 100°CThe minimum pressure = static height + anti flash margin (anti-flash margin refer to graph 2). An intermediate vessel will be required.

Intermediate VesselsTo provide thermal protection and optimize the life span of BOSS Expansion Vessels on systems with return temperatures above 90°C an intermediate vessel or suitably sized length of steel pipework should be installed between the expansion vessel and the system return.The volume is calculated as follows:90°C ~ 110°C = 15% of system expansion volume111°C ~ 125°C = 25% of system expansion volume126°C ~ 140°C = 40% of system expansion volume

Vessels for HWS ApplicationsTo size a vessel for HWS use the basic calculation above. The maximum operating temperature of the calorifier being substituted for the highest system temperature and the shut valve head of the calorifier. A non-return valve should be fitted between the cold water in and connection point for the vessel.

Expansion Vessels Sizing to BS7074

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Initial system pressure = the static height in barg + 0.3 barg. Must be 0.7 barg minimum, if rooftop plant use this value.

Static HeightStatic height is the vertical distance from the expansion vessel mid point (lower part of system) to the highest point of the system above expansion vessel.

Graph 1

Graph 2



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Sealed System Paks and Intermediate Vessels

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BOSS Sealed System PaksA convenient package ensuring all the correct fittings are supplied with a BOSS expansion vessel. This results in a compact and neat assembly for a domestic sealed system. Sealed System Paks are sized in the same way as standard expansion vessels.BOSS Sealed System paks consist of a BOSS expansion vessel, filling loop, safety relief valve complete with gauge, vessel mounting bracket (up to 25ltr) and connecting t-piece.

BOSS Intermediate Vessels – 160°C 6.0 bar (g)Max working pressure: 6.0 bar(g)Max supply temperature (tank): 160°C

BOSS Intermediate Vessel Sizing TableBOSS Intermediate Vessels – 160°C 10.0 bar(g) available on requestThe sizing of intermediate vessels is dependent on the calculated expanded volume and the respective flow temperature of the system. Where possible intermediate vessels and the associated expansion equipment should be connected to the return line to the boiler (coldest part of the system).

Dimensions

Type Capacity (litres)

Gas Charge (Bar) Ø (mm) Height

(mm)Syst. Conn.

(mm)Dry Weight

(Kg) Order Code

BOSS SEALED SYSTEM PAK 4 4 0.5 194 365 15 2.8 19712106BOSS SEALED SYSTEM PAK 8 8 0.5 245 388 15 4.4 19712117BOSS SEALED SYSTEM PAK 12 12 0.5 286 421 15 5.5 19712128BOSS SEALED SYSTEM PAK 18 18 0.5 328 414 15 6.9 19712139BOSS SEALED SYSTEM PAK 24 25 0.5 358 467 15 8.5 19712150BOSS SEALED SYSTEM PAK 35 35 0.5 396 524 15 12.3 19712161BOSS SEALED SYSTEM PAK 50 50 0.5 437 581 15 15.6 19712172

Dimensions Connections

Type Capacity (litres) Ø(mm) Height

(mm) Vessel (F) System (M) Dry Weight (Kg) Order Code

Intermediate Vessel Type 50 50 484 600 1 ½" 1 ½" 26 19713997Intermediate Vessel Type 100 100 484 750 1 ½" 1 ½" 31 19714003Intermediate Vessel Type 200 200 484 1304 1 ½" 1 ½" 51 19722134Intermediate Vessel Type 350 350 484 2124 1 ½" 1 ½" 80 19714025Intermediate Vessel Type 500 500 600 2025 2" 2" 96 19714036Intermediate Vessel Type 750 750 790 1863 2" 2" 142 19714047Intermediate Vessel Type 1000 1000 790 2238 2" 2" 172 19714058

Temperature Range Expanded Volume Multiplication Factor90°C-110°C 15%111°C-125°C 25%126°C-140°C 40%141°C-150°C 60%


Heating Expansion Vessels

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Expansion Vessels for Heating and Chilled Water ApplicationsDescription

Diaphragm expansion vessels for heating closed circuits. Suitable to compensate for the increased volume of hot water. Fitted with a fixed synthetic rubber membrane (SBR), secured by a clench type construction, they are approved and manufactured according to the Directive 97/23/CE, for heating and non-potable water.Code for bracket (2 - 25L): 19713001

Technical Data

• Fixed diaphragm design SBR rubber diaphragm (4 to 1000 litres)• System operating range -10 to 100ºC• Diaphragm operating range -10 to 70ºC• Max Glycol Content 50% By Volume• Compliant with the Pressure Equipment Directive 97/23/CE• SBR rubber membrane for hot non-potable water, approved by DIN 4807-3• Produced according to the Directive PED 97/23/CE• Red epoxy paint coating• Top connection (except for 35 to 80L which is a side connection)

Capacity (litres) Ø (mm) Height

(mm)Max. Working Pressure (bar)

Factory Set Pressure (bar)

Connection Size (BSP)

Weight (Kg)

Installation Orientation Order Code

2 216 144 3 1.5 ¾"M 1.7 Horizontal & Vertical 19711008








80 519 551 6 2 1"M 15 Vertical 19711096100 484 784 6 2 1"M 23.8 Vertical 19711104150 484 1024 6 2 1"M 27.6 Vertical 19711115200 484 1300 6 2.5 1"M 38.1 Vertical 19711126300 600 1330 6 2.5 1"M 56.9 Vertical 19711137400 790 1180 6 2.5 1"M 76.4 Vertical 19711148500 790 1330 6 2.5 1"M 83.7 Vertical 19711211600 790 1538 6 2.5 1"M 92.9 Vertical 19711159800 790 1888 6 2.5 1"M 126.9 Vertical 19711170

1000 790 2268 6 2.5 1"M 145.9 Vertical 197111814-25 Litre Mount Bracket Supports 4 - 25 Litre. Supplied with all the necessary screws/fixings 19713001



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Potable Expansion Vessels

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Expansion Vessels for Cold and Potable Water, DHWS, Higher Pressure Heating and Chilled Water Applications

Description

Replaceable EPDM membrane vessels for potable water. The tank is constantly kept under pressure by an air cushion that is separated from water by the membrane.

Technical Data

• Replaceable membrane tanks for potable water• System operating range -10 to 100°C up to 750L• Above 750L operating range -10 to 50°C• Manufactured according to the Directive PED 97/23/CE• Approved by WRAS No. 0603301• EPDM membrane for sanitary water• Maximum glycol content 50%• Blue epoxy paint coating• Bottom connection

Capacity (litres) Ø (mm) Height

(mm)Max. Working Pressure (bar)

Max. Working Temperature

Factory Set Pressure (bar)

Connection Size (BSP)

Weight (Kg)

Installation Orientation Order Code

2 120 235 10 100°C 2.7 ¾"M 1 Vertical 197114145 170 275 10 100°C 2.7 ¾"M 1.4 Vertical 197114258 220 305 10 100°C 2.7 ¾"M 1.8 Vertical 19711222

12 260 310 10 100°C 2.7 ¾"M 2.4 Vertical 1971123318 260 375 10 100°C 2.7 ¾"M 3.2 Vertical 1971124424 260 485 10 100°C 2.7 ¾"M 3.6 Vertical 1971125535 380 470 10 100°C 2.7 1"M 5.8 Vertical 1971143650 380 720 10 100°C 2.7 1"M 8.4 Vertical 1971126660 380 830 10 100°C 2.7 1"M 10.7 Vertical 1971138480 460 760 10 100°C 2.7 1"M 12.2 Vertical 19711277

100 460 880 10 100°C 2.7 1"M 13.5 Vertical 19711288200 590 1070 10 100°C 2.7 1 ¼"M 33 Vertical 19711307300 650 1250 10 100°C 2.7 1 ¼"M 44.5 Vertical 19711329500 750 1600 10 100°C 2.7 1 ¼"M 58.5 Vertical 19711351750 800 1820 10 50°C 2.7 2"F 153.5 Vertical 19711362

1000 800 2130 10 50°C 2.7 2 ½"F 183.5 Vertical 1971137324

Horizontal 260 485 10 100°C 2.7 ¾"M 4.7 Horizontal 19711395

8-24 Litre Mount Bracket Supports 8-24 Litre. Supplied with all the necessary screws/fixings 19713067

NB: An 8 bar 100°C is available in 750 and 1000L (codes: 19722112 and 19722123)

Code: 19713067


Sealed Systems Accessories

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BOSS PR12 Replacement Pump (Replaces PR10/11)Continuously rated, centrifugal pump with brass pump head and impeller. Replacement pump for all AX and PF units as well as high head Midi units (MD1-5.0E & MD2-5.0E).Code: 80631009

EP77 Solenoid PumpReplacement pump for all MX Pressurisation Units.Code: 19630605

BOSS Filling LoopFull set of fittings to meet water bye-laws for connection to the water mains. Available as standard or automatic filling.A 15mm straight Code: 83063256 B 15mm T-valve Code: 83063245C Auto 15mm straight Code: 83063289

BOSS Component SetsFor installing an expansion vessel. System connection 15mm. Converts to a Sealed System Pak.A 4 - 25 Ltr Code: 19713023B 4 - 25 Ltr Remote SV Code: 19713034C 35 - 50 Ltr (No Bracket) Code: 19713045

Pressure Safety ValveCombined safety valveA ½" Code: 19610305B ¾" Code: 19610316C 1" Code: 19610327D 1 ¼" Code: 19610338

BOSS Water Shock ArresterAbsorbs the back flow shock when water flow is suddenly stopped. Helps prevent damage to pipes and fittings caused by water hammer. Max. working pressure 10 bar.Code: 19713056



1515

BSS offer a comprehensive range of aftersales services through the dedicated AMS Aftersales team based in Nottingham.CommissioningAMS Aftersales can arrange the commissioning of pressurisation products as part of any project. Customers can access this service by contacting AMS direct or via any BSS branch. Once commissioning has taken place, the AMS database will record the details.

Servicing and Service ContractsFor peace of mind and to help ensure the maximum efficiency and safety of customers installed pumping and pressurisation equipment, AMS has a comprehensive range of service packages ranging from routine annual checks to full extended warranty options.

Other literature available from BSS Industrial…All BSS literature is available to download from our website,

and selected brochures can be ordered online.

Grab your copy now!Available to order online at www.bssindustrial.co.uk or from your local branch.

AIR AND DIRT SEPARATION

AMS - A Complete Solution BOSS Air & Dirt SeparationBSS Industrial Pumps

For more information or a quote, please contact the AMS Aftersales teamTel: 0870 850 3886 | Fax: 0870 850 4972 | Email: [email protected]

The information contained in this publication is believed to be correct and complete at the time of printing but it is an approximate guide only. Due to limitations in the printing process, images may not be representative of their true colours and colour variations may occur due to the natural origin of the products. Stock may vary from branch to branch and is subject to availability. Any industry accreditations portrayed (eg WRAS, BBA etc) are correct at time of going to press but may be subject to change without prior notice. All photographs are a guide only and do not necessarily represent the products available. BSS Industrial reserves the right to change product details and designs without prior notice. To the fullest extent permitted by law, BSS Industrial assumes no liability or responsibility for typographical and clerical errors and omissions in this publication (which may be corrected by us without liability) and this publication does not form the basis of any contract. All products sold are subject to our Group Sale Terms, a copy of which are available on request or are otherwise available at www.bssindustrial.co.uk. Travis Perkins Group is the owner of the registered trademark BOSS.


Registered Office: Lodge Way House, Lodge Way, Harlestone Road, Northampton. NN5 7UG JB69210 01/13 BOSSpressurisation/0213/5

BSS Branches www.bssindustrial.co.ukBSS Aberdeen Unit 5a, South Middleton Base Greenwell Road East Tullos Industrial Estate Aberdeen AB12 3AX T: 01224 292929 [email protected]

BSS Belfast 36-38 Duncrue Road Duncrue Industrial Estate Belfast, Northern Ireland BT3 9BP T: 028 9078 4000 [email protected]

BSS Birmingham Central / Gravelly Unit 49, Gravelly Industrial Park, Tyburn Road, Erdington Birmingham B24 8TG T: 0121 322 0370 [email protected]

BSS Birmingham Oldbury Unit 1a, Junction Two Industrial Estate Demuth Way, Oldbury West Midlands B69 4LT T: 0121 541 1666 [email protected]

BSS Birmingham Smethwick Units 2 & 4, Crystal Drive Sandwell Business Park Smethwick, West Midlands B66 1QG T: 0121 552 6000 [email protected]

BSS Borehamwood Chester Road, Borehamwood Hertfordshire WD6 1LT T: 020 8327 4100 [email protected]

BSS Bournemouth Unit 3B, Broom Road Business Park Broom Road, Poole BH12 4PA T: 01202 711300 [email protected]

BSS Brentford Transport Avenue Brentford, Middlesex TW8 9HF T: 020 8232 2727 [email protected]

BSS Bristol Albert Road, St Philips Bristol BS2 0BS T: 0117 972 7900 [email protected]

BSS Cambridge Unit 3, Rosemary Lane Cambridge CB1 3LQ T: 01223 404040 [email protected]

BSS Cardiff Unit 1, Trident Trade Park Glass Avenue, Ocean Way Cardiff CF24 5EP T: 029 2043 2400 [email protected]

BSS Carlisle Unit 2A, Port Road Business Park Carlisle CA2 7AJ T: 01228 517600 [email protected]

BSS Chessington Oakcroft Road Chessington Industrial Estate Chessington, Surrey KT9 1RH T: 020 8974 3800 [email protected]

BSS Colchester Unit 6, Smeaton Close Severalls Industrial Park Colchester, Essex CO4 9QY T: 01206 754720 [email protected]

BSS Coventry Unit 17, Maguire Industrial Estate 219 Torrington Avenue Coventry CV4 9HN T: 024 7669 4744 [email protected]

BSS Crawley 12A Denvale Trade Park Haslett Avenue East Crawley RH10 1SS T: 01293 610170 [email protected]

BSS Croydon Unit 34, Factory Lane Croydon, Surrey CR0 3RL T: 020 8662 2300 [email protected]

BSS Dartford Unit 11, Orbital One Green Street Green Road, Dartford, Kent DA1 1QG T: 01322 289039 [email protected]

BSS Derby Riverside Road Pride Park, Derby DE24 8HH T: 01332 685600 [email protected]

BSS Drainage Bellshill Unit 4, 8 Melford Road Righead Industrial Estate Bellshill ML4 3LR T: 01698 740440 [email protected]

BSS Drainage Canning Town Unit 1, Europa Trade Park (Formerly Pylon Industrial Estate) Cody Road, Canning Town London E16 4SP T: 020 7540 5260 [email protected]

BSS Dublin White Heather Industrial Estate 301 South Circular Road Dublin 8 T: +353 14 165100 [email protected]

BSS Dundee Unit 1-3, Rutherford Road Dryburgh Industrial Estate Dundee DD2 3XH T: 01382 823700 [email protected]

BSS Edinburgh Unit 2A, Pentland Industrial Estate Loanhead, Midlothian EH20 9QH T: 0131 440 5900 [email protected]

BSS Exeter Unit 6, Otter Court Manaton Close Matford Business Park Exeter EX2 8PF T: 01392 457500 [email protected]

BSS Glasgow Unit A, 91 Vermont Street Kinning Park, Glasgow G41 1LU T: 0141 418 4444 [email protected]

BSS Gloucester Unit C1, Eastbrook Road Gloucester GL4 3DB T: 01452 872200 [email protected]

BSS Grimsby Appian Way, Europa Park Grimsby DN31 2FD T: 01472 265100 [email protected]

BSS Hull Copenhagen Road Sutton Fields Industrial Estate Hull HU7 0YH T: 01482 625800 [email protected]

BSS Kings Cross Unit 2, 1 Brewery Road Islington, London N7 9QJ T: 020 7619 7600 [email protected]

BSS Leeds Turnkey Park Estate Royds Lane, Leeds LS12 6AD T: 0113 203 2203 [email protected]

BSS Leicester 66 Cobden Street Leicester LE1 2LB T: 0116 242 7800 [email protected]

BSS Lewes Unit 5, Southdown Business Park Brooks Road Lewes, East Sussex BN7 2FB T: 01273 485000 [email protected]

BSS Lincoln Units 3/4, Crofton Drive Allenby Industrial Estate Lincoln LN3 4NR T: 01522 565700 [email protected]

BSS Liverpool 82/94 Great Howard Street Liverpool L3 7AX T: 0151 482 2500 [email protected]

BSS London Docklands Units 6 & 7, Thomas Road Industrial Estate Limehouse, London E14 7BN T: 020 7531 3900 [email protected]

BSS Luton 1 Trojan Court Laporte Way, Luton Bedfordshire LU4 8RN T: 01582 875600 [email protected]

BSS Maidstone Unit 5, Wood Close Quarry Wood Industrial Estate Aylesford, Kent ME20 7UB T: 01622 713600 [email protected]

BSS Manchester Unit 1, Columbus Way Off Broadway, Salford, Manchester M50 1UU T: 0161 888 6464 [email protected]

BSS Newcastle Sanderson Street Newcastle-upon-Tyne NE4 7PJ T: 0191 256 5100 [email protected]

BSS Northampton Riverside Way Bedford Road Northampton NN1 5NX T: 01604 251400 [email protected]

BSS Norwich Unit 13, Alston Road Hellesdon Park Industrial Estate Norwich, Norfolk NR6 5DS T: 01603 253200 [email protected]

BSS Nottingham Unit 3, Longwall Avenue Queens Drive Industrial Estate Nottingham NG2 1NA T: 0115 943 5900 [email protected]

BSS Oldham Constantine Street Oldham Lancashire OL4 3AD T: 0161 624 4621 [email protected]

BSS Oxford Unit C, Taurus Peterley Road Horspath Industrial Estate Cowley, Oxford OX4 2TZ T: 01865 398870 [email protected]

BSS Peterborough Unit 2a, Centurion Business Centre Sturrock Way, Bretton Peterborough PE3 8YB T: 01733 336000 [email protected]

BSS Plymouth Block G, St.Modwen Road Parkway Industrial Estate Plymouth, Devon PL6 8LH T: 01752 675300 [email protected]

BSS Portsmouth Unit D4 Discovery, Voyager Park, Portfield Road Airport Industrial Estate Hilsea, Portsmouth PO3 5FL T: 023 9265 8740 [email protected]

BSS Preston Units 1 & 2, Brookfield Street Preston PR1 1NR T: 01772 557800 [email protected]

BSS Reading Units A2 & A3, Worton Drive Worton Grange Industrial Estate Reading RG2 0TG T: 0118 923 8900 [email protected]

BSS Romford King George Close Eastern Avenue West Romford, Essex RM7 7PS T: 01708 771800 [email protected]

BSS Sheffield Unit 15, Oakham Drive Parkwood Industrial Estate Sheffield S3 9QX T: 0114 289 3900 [email protected]

BSS Southampton Unit 1a, Parham Drive Boyatt Wood Trading Estate Eastleigh, Hampshire SO50 4NU T: 023 8068 3700 [email protected]

BSS Stockton Teesway North Tees Industrial Estate Stockton on Tees TS18 2RS T: 01642 665500 [email protected]

BSS Stoke Units 6 & 7, Etruria Trading Estate Etruria Way, Basford Stoke on Trent ST4 6JQ T: 01782 382382 [email protected]

BSS Swansea Unit 2, Century Park Swansea Enterprise Park Swansea SA6 8RP T: 01792 762300 [email protected]

BSS Swindon Unit 4A, Euroway Industrial Estate Blagrove, Swindon SN5 8YW T: 01793 601500 [email protected]

BSS Wandsworth Unit 5, 307-309 Merton Road Wandsworth, London SW18 5JS T: 020 8877 9191 [email protected]

BSS Wigan Unit 2, Lockflight Buildings Wheatlea Industrial Estate Wheatlea Road, Wigan WN3 6XP T: 01942 405540 [email protected]

BSS Wirral Rossmore Road East Rossmore Industrial Estate Ellesmere Port Wirral, Cheshire CH65 3DD T: 0151 348 5400 [email protected]

Warrens Leeds Unit 4B, Olympia Industrial Estate Gelderd Lane Leeds LS12 6AL T: 0113 224 6500 [email protected]

Warrens London Unit 5, New England Trading Estate Gascoigne Road Barking IG11 7NZ T: 020 8477 8888 [email protected]

Head Office Fleet House, Lee Circle Leicester LE1 3QQ T: 0116 262 3232 [email protected] Fax: 0116 253 1343

National Distribution Centre (Magna Park) Buccaneer Way Magna Park Lutterworth LE17 4YZ T: 01455 551000 Fax: 01455 556079

National Tube Distribution Centre (Cross Point) Ashcroft Way Cross Point Business Park Coventry CV2 2TU T: 024 7662 5700 Fax: 024 7662 5701

Bulwell National Distribution Centre Martin Close Blenheim Industrial Estate Bulwell, Nottingham NG6 8UW T: 0115 927 8288 Fax: 0115 973 9543

AMS Aftersales T 0870 850 3886 E amsse@bssgroup


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BOSS™ Pressurisation Units and Expansion Vessels

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