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Mov Manual

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© Copyright by BIFFI Italia. All rights reserved. BIFFI is a subsidiary of Keystone International, Inc. BIFFC-0040-EN-9603 INSTRUCTION AND OPERATING MANUAL “QTC” Series Electric Actuator instruction and operating manual Contents may change without notice. INDEX CHAPTER 1 Storage and Pre-Installation page 3 CHAPTER 2 Installation page 5 CHAPTER 3 Setting of Electrical Cam Control Group page 9 CHAPTER 4 Setting of the Dial Position Local Indicator page 15 CHAPTER 5 Setting of the Resistive-Type PositionTransmitter page 16 CHAPTER 6 Seal Application to the Electrical Enclosures page 18 CHAPTER 7 Lubrication page 19 CHAPTER 8 Maintenance page 21 CHAPTER 9 Trouble Shooting page 22 CHAPTER 10 Recommended Spare Parts and Sectional Drawings page 24
Transcript
  • Copyright by BIFFI Italia. All rights reserved.BIFFI is a subsidiary of Keystone International, Inc.

    BIFFC-0040-EN-9603

    INSTRUCTION ANDOPERATING MANUAL

    QTC Series Electric Actuatorinstruction and operating manual

    Contents may change without notice.

    INDEX

    CHAPTER 1 Storage and Pre-Installationpage 3

    CHAPTER 2 Installationpage 5

    CHAPTER 3 Setting of Electrical Cam Control Grouppage 9

    CHAPTER 4 Setting of the Dial PositionLocal Indicatorpage 15

    CHAPTER 5 Setting of the Resistive-TypePositionTransmitterpage 16

    CHAPTER 6 Seal Application to the Electrical Enclosurespage 18

    CHAPTER 7 Lubricationpage 19

    CHAPTER 8 Maintenancepage 21

    CHAPTER 9 Trouble Shootingpage 22

    CHAPTER 10 Recommended Spare Parts and Sectional Drawingspage 24

  • Copyright by BIFFI Italia. All rights reserved.BIFFI is a subsidiary of Keystone International, Inc.

    QTC Series Electric Actuatorinstruction and operating manual

    BIFFC-0040-EN-9603 Contents may change without notice.

    3) Electrical connections

    4) Torque and position setting

    5) Setting the trip point of the auxiliarylimit switches

    CHAPTER 4, page 15

    Setting of the Local PositionDial Indicator

    1) Adjustment of the closing indication

    2) Adjustment of the opening indication

    CHAPTER 5, page 16

    Setting of the Resistive-TypePosition Transmitter

    CHAPTER 6, page 18

    Seal Application to theElectrical Enclosures

    CHAPTER 7, page 19

    Lubrication

    1) Lubrication inspection

    2) Lubrication tables

    3) Comparison table of approvedlubricant substitutes

    CHAPTER 8, page 21

    Maintenance

    1) Standard maintenance

    2) Special maintenance

    CHAPTER 9, page 22

    Trouble Shooting

    1) The actuator does not work electrically

    2) The motor cannot unseat the valve

    3) The motor is very hot and does not start

    4) The actuator works electrically withoutoperating the valve

    5) Excessive torque for the valve operation;the motor overheats during operation

    6) Incorrect valve seating

    7) Jammed valve in closed position

    8) The actuator does not stop in fully open or closed position

    CHAPTER 10, page 24

    Recommended Spare Partsand Sectional Drawings

    1) Commissioning spare parts kits

    2) Recommended spare parts for twoyears operation

    2

    DETAILED INDEX

    CHAPTER 1, page 3

    Storage and Pre-Installation

    1) Tests to be carried out on receipt ofthe actuator

    2) Storage procedure

    3) Checks to be performed beforeinstallation

    CHAPTER 2, page 5

    Installation

    1) Identification of the main parts

    2) Bush: disassembly from the actuator

    3) Manual operation

    4) Mounting of the actuator onto thevalve

    5) Removal of the electrical enclosurescovers

    6) Cables entries

    7) Electrical connections

    8) Instructions for the explosion-proofenclosures

    CHAPTER 3, page 9

    Setting of Electrical CamControl Group

    1) Electrical cam control group

    2) Checking the setting of motorizedvalves

    NOTES:

    BIFFI Italia has taken every care in collecting and verifying the documentation contained in this instruction and operating manual.Nevertheless Biffi Italia does not provide any guarantees for this instruction manual.BIFFI Italia will not be responsible for any mistakes contained in it or for any damage either accidental or due to the use of thismanual.The information herein contained is reserved property of BIFFI Italia and is subject to being modified without notice.All rights are reserved.

  • 3Contents may change without notice. Copyright by BIFFI Italia. All rights reserved.BIFFI is a subsidiary of Keystone International, Inc.

    BIFFC-0040-EN-9603

    QTC Series Electric Actuatorinstruction and operating manual

    CHAPTER 1Storage and Pre-Installation

    INDEX

    1) Tests to be carried out on receipt of the actuator

    2) Storage procedure

    3) Checks to be performed beforeinstallation

    1- Tests to be CarriedOut on Receipt of theActuator

    1.1) If the actuator is received mounted on the valve, all operations should have been already performed during valve-actuator assembly.

    In order to check if the adjustment of the actuator mounted on the valve has been carried out:- engage the manual operation;

    - turn the handwheel until the valve is in a completely open position;

    - check that the pointer on the local indicator dial shows that the valve is completely open;

    - rotate the handwheel clock-wise and bring the valve to acompletely closed position;

    - check that the pointer on the localindicator dial shows that the valve is completely closed.

    If the tests result satisfactory, the actuator has already been adjusted and you can proceed with theelectrical connection.

    1.2) If the actuator is delivered separatelyfrom the valve, all the operations described in this manual must be carried out.

    1.3) Check that no damage has occuredduring transport.

    1.4) Check on the name-plate the serialnumber and the performance data(nominal torque, operation speed,protection class, motor supplyvoltage, etc...).

    1.5) Check the presence of the visibleaccessories, as described in the delivery note.

    2 - Storage Procedure

    Important: The non-observation of thefollowing procedure will invalidate theguarantee.

    2.1) GENERAL

    Actuators leave the factory inperfect conditions (as guaranteedby an individual test certificate);therefore, in order to maintain these characteristics until they areinstalled on site, take the necessary measures for a correct preservation during the storage period.

    Biffi actuators are weatherproof to IP 68; this condition is maintained only if they are perfectly installedand connected on site and if they have been correctly stored.

    The standard plastic plugs closing the cable entries are notweatherproof; their purpose is only to avoid the entry of undesired objects during transport.

    2.2) STORAGE FOR A BRIEF PERIOD(less than one year):

    2.2.1) Indoor storage:- make sure that the actuators are

    kept in a dry place, laid on a wooden pallet and protected fromdust.

    2.2.2) Outdoor storage:- make sure that the actuators are

    protected from the direct action of weather agents (protection by a canvas or similar);

    - lie the actuators on a wooden pallet, or something similar, sothat they are not in direct contact with the ground;

  • Contents may change without notice.4

    - if the actuators are supplied with standard plastic plugs, remove them from the cable entries and replace them with proper plugs guaranteeing a perfectweatherproof protection;

    - connect the anticondensate heaters following all the indications (power supply, terminal numbers etc...) given inthe wiring diagram which can be found inside the terminal boardcompartment;

    - make sure that the external connection to the heater is through one of the available cableentries and by a proper IP 68weatherproof cable gland.

    2.3) LONG PERIOD STORAGE(more than one year):

    2.3.1) Indoor storage: - in addition to the instructions at

    point 2.2.1., if the actuators aresupplied with standard plastic plugs,replace them and connect theheater as described at point 2.2.2.

    2.3.2) Outdoor storage:- after following all the instructions

    at point 2.2.2., verify periodically(approximately once a year) thegeneral conditions of the actuator,paying particular attention to theinside of the switches and terminalboard enclosures;

    - if these inspections should revealthe presence of water orcondensation it is necessary toexamine:

    the status of the O-ring seals

    the installation of the plugs orcable glands on the cable entries

    the functioning of anticondensateheaters

    the status of the local dial indicatorglass

    if the enclosure covers or theactuator body are cracked orbroken

    - after long storage periods, beforestart-up, verify the oil level insidethe gearbox and top-up ifnecessary.

    3 - Checks to bePerformed BeforeInstallation

    3.1) The valve to be motorized must be suitable for coupling to the actuator.

    3.2) The electrical supply cables must besuitable for the power rating(see the test certificate attached to the actuator).

    3.3) The necessary tools for theassembly and setting of theactuator controls must be available.

    3.4) In case of long storage periods,check the oil level in the actuator.

    Copyright by BIFFI Italia. All rights reserved.BIFFI is a subsidiary of Keystone International, Inc.

    QTC Series Electric Actuatorinstruction and operating manual

    BIFFC-0040-EN-9603

  • Contents may change without notice.

    CHAPTER 2

    Installation

    INDEX

    1) Identification of the main parts

    2) Bush: disassembly from the actuator

    3) Manual operation

    4) Mounting of the actuator onto thevalve

    5) Removal of the electrical enclosurescovers

    6) Cables entries

    7) Electrical connections

    8) Instruction for the explosion-proofenclosures

    1 - Identification of theMain Parts

    Legenda

    1: Gearbox

    2: Electric motor

    3: Terminal board enclosure

    4: Limit switch enclosure

    5: Handwheel for manual operation

    6: Dial indicator

    7: Mechanical stops

    8: Cable entries

    9: Coupling flange

    5

    1

    2

    3

    4

    5

    6

    89

    1

    23

    4

    57

    8

    9

    Copyright by BIFFI Italia. All rights reserved.BIFFI is a subsidiary of Keystone International, Inc.

    BIFFC-0040-EN-9603

    QTC Series Electric Actuatorinstruction and operating manual

  • Contents may change without notice.

    To manually operate the actuator it issufficient to turn the handwheel in thedesired direction. The manual operationis always possible without any clutchingmechanism.

    2 - Bush: Disassemblyfrom the Actuator

    The bush is delivered alreadyassembled to the drive sleeve, even when it is unmachined. In order to carry out the necessary machining, it is necessary to remove it from itshousing.

    2.1) PREPARATION OF THE BUSH

    Remove the safety ring from its holder by means of a strong tooland extract the bush from the drive sleeve.

    Now the bore can be machined to suit coupling requirements. Theprocedure is the same for possible maintenance.

    Important: before mounting the bushing, make sure that thecoupling tolerances to the valve stem are correct.

    4- Mounting of theActuator ontothe Valve

    Lubricate the valve stem.

    Clean well the coupling surfaces of the valve and actuator flanges,degreasing them carefully since thetorque is transmitted by the friction of the flanges.

    Lift the actuator with slings suitable forits weight.

    Size Max. weight

    F 50 41 Kg

    F100 46 Kg

    F200 47 Kg

    F400 69 Kg

    F800 80 Kg

    Check the dimensions of the valvemounting details, paying particularattention to the protrusion of the valvestem in order to avoid any axial thruststo the internal parts of the actuatoror the valve when the screws aretightened.

    Place the actuator vertically on the valvestem.

    Carry out the coupling operations(if necessary with the help ofmanual operation); pay attention that nomating parts are forced.

    6

    2.2) RE-ASSEMBLY OF THE BUSH

    It is advisable to wash thedismantled parts with a suitablesolvent; dry them with compressedair; make sure that there are nometal filings or foreign bodies;spread a film of grease on all parts(for grease type, see chapt. 7).

    Important: During the re-assembly ofthe bush into its drive sleeve, take intoaccount the final position of the actuatoron the valve.

    For this purpose proceed as follows:- control the position of the stem

    keyway, with the valve in closedposition;

    - manually drive the actuator in closed position, by means of the handwheel;

    - determine the final orientation of the actuator with respect to the valve;

    - mount the bush in the drive sleeve, in a position that satisfies the aboveconsiderations.

    3 - Manual Operation

    Copyright by BIFFI Italia. All rights reserved.BIFFI is a subsidiary of Keystone International, Inc.

    QTC Series Electric Actuatorinstruction and operating manual

    BIFFC-0040-EN-9603

  • Contents may change without notice.

    Fix the actuator to the valve usingtension rods, nuts and stud bolts incarbon steel, (minimum materialrequired: ISO class 8.8 or AISI SAE 1040or 8G-UNI 3740-65 or higher), andtighten according to the recommendedtorques:

    Size Tightening torque

    F 50 130 NmF100 300 NmF200 300 NmF400 130 NmF800 130 Nm

    5 - Removal of the Electrical Enclosures Covers

    5.1) LIMIT SWITCHES ENCLOSURE

    Using a 6 mm hexagonal key remove the fixing screws from the cover. Remove the cover with carein order to avoid damaging either the coupling surfaces or the O-Ring seal.

    If it is difficult to remove the cover, use 2 of the removed fixing screws as extractors, screwing them in theappropriate threaded holes; unscrew them alternatively until the cover is completely removed.

    5.2) TERMINAL BOARD ENCLOSURE

    Using a 2 mm hexagonal key, loosenthe securing screw placed in the cover.

    Unscrew the cover completely by using a bar to force on the two lugs. DO NOT HAMMER THE LUGS TO AVOID BREAKING.

    6 - Cable Entries

    Remove the cable entry plugs.

    Screw the cable glands tightly so as toguarantee a weather-proofand explosion-proof tightness.

    If some parts of the cable glands havebeen removed to facilitate the operationillustrated in the preceding figure, putthem back into place immediately toavoid losing the dismantled parts.

    Unused entries:

    - for explosion-proof construction, they must be sealed with metal plugs (repeat the same operations described in this chapter);

    - for weather-proof construction, theplastic standard protection plugssupplied with the actuator must be removed and replaced with proper plugs ensuring perfect weather-proofprotection.

    7

    Important:

    - be sure that the terminal board is

    positioned with the cable entries in the

    lowest position, to avoid any water

    infiltration through the line cables

    - if the connection is made by rigid

    conduits, we suggest to place a flexible

    pipe connection between the conduit

    and the terminal board.

    Copyright by BIFFI Italia. All rights reserved.BIFFI is a subsidiary of Keystone International, Inc.

    BIFFC-0040-EN-9603

    QTC Series Electric Actuatorinstruction and operating manual

  • 7 - Electrical Connections

    First terminated the ground connectionsto the ground stud marked . Oneinternal end two external ground studsare provided.

    If the actuator is not fitted with anintegral starter, a motor control systemwith remote contactors, open-stop-closepushbuttons and signalling lamps mustbe provided to operate the actuator.

    Check the wiring diagram (alwaysenclosed with the actuator) and thelayout present on the back of theterminals enclosure cover, to ensure acorrect electrical connection.

    Contents may change without notice.

    Connect the motor supply cablepreviously sized according to:- the absorbed current correspondent to

    the actuator nominal torque with thetorque limiting device set at 100%(see the test certificate attached tothe actuator)

    - applicable plant and safety norms.Assemble the power terminals protectivebarrier, always present into the terminalboard compartment, by the enclosedfixing screws.The control circuit (controls and signals)must be connected by means ofa multicore cable to the correspondingnumbered terminals according to thewiring diagram.The internal cables of the actuator arealso numbered according to the wiringdiagram.

    The actuators are delivered with themotors wound and connectedin accordance to the customersrequests: voltage and frequence valuesare stated on the motor name-plate.

    Important: To guarantee theprotection of the internal circuit, theanticondensation heater must bepowered immediately after the electricalconnection has been made andthey must never be disconnected.

    8 - Instructions for the Explosion-Proof Enclosures

    During the dismantling and subsequentre-assembling of the explosion-proofenclosures (covers, cable glands, joints)it is necessary to pay particular attentionin bringing these enclosures back totheir original condition so as to maintaintheir integrity. So please:

    8.1) Do not damage the explosion-proof mating surfaces, both on the housing, and on the electricalenclosures covers.

    8.2) Put all the fixing screws of thedismantled parts back.

    8.3) Check that the bolts and screws,that may have been replaced, are ofthe same dimension and quality as the original ones (these are stated on the nameplate), or of a better quality.

    8.4) Do not operate the actuatorelectrically when the electricalenclosures are removed.

    8.5) Replace the weather-proof seals that may have been removed(O-ring for the covers, O-ring for theexplosion-proof joint of the motor).

    8 Copyright by BIFFI Italia. All rights reserved.BIFFI is a subsidiary of Keystone International, Inc.

    QTC Series Electric Actuatorinstruction and operating manual

    BIFFC-0040-EN-9603

    Ground Studs

  • Contents may change without notice.

    CHAPTER 3

    Setting of Electrical CamControl Group

    INDEX

    1) Electrical cam control group

    2) Checking the setting of motorizedvalves

    3) Electrical connections

    4) Torque and position setting

    5) Setting the trip point of the auxiliarylimit switches

    1 - Electrical Cam Control Group

    1.1) LOCATION AND IDENTIFICATION OF THE COMPONENTS

    Legenda

    CT/P: Torque/position limit switch inclosing

    OT/P: Torque/position limit switch inopening

    CS1 and CS2: Closed position signallingswitches

    OS1 and OS2: Open position signallingswitches

    H: Anticondensate heater

    IAS1 and IAS2; IBS1 and IBS2: Auxiliarylimit switches adjustableat any point of the stroke (optional)

    PT: Potentiometric transmitter (optional)

    P : Torque/position swing lever.

    1.2) GENERAL CHARACTERISTICS

    The electrical control group performs

    the following functions:

    - stops the actuator by means of

    CT/P and OT/P torque/limit

    switches when the valve has

    reached the extreme positions;

    - limits the output torque all along

    the stroke (in opening and in

    closing) to prevent damages to the

    valve trims by means of CT/P and

    OT/P torque limit switches;

    - stops the actuator by means of

    CT/P and OT/P torque/limit

    switches when the preset output

    torque value has been reached;

    - provides an electrical signal, local

    and/or remote, by means of CS1,

    CS2, OS1 and OS2 limit switches,

    when the valve reaches the

    extreme positions;

    - continuously signals the position

    of the valve by means of a local

    mechanical dial indicator;

    - by-passes the torque limiting

    device mechanically excluding it in

    the initial part of the opening and

    closing strokes; this allows the

    actuator to supply the maximum

    possible torque, equal to about

    1.5 times the nominal torque.

    OPTIONAL FEATURES:

    - continuous remote signalling of

    the valve position by means of

    position transmitter PT;

    - feed-back of the valve position by

    means of PT position transmitter

    (in modulating service);

    - electrical signalling indicating the

    valve intermediate positions by

    means of IAS and IBS limit

    switches.

    2 -Checking the Setting ofMotorized Valves

    2.1) IF THE VALVE IS DELIVERED

    COMPLETE WITH THE

    ACTUATOR, it is necessary to

    check that the setting operations

    have been carried out. Verify that

    the valve is not completely closed.

    Remove the cover of the terminal

    board enclosure and connect an

    ohmmeter to the terminals of the

    CS1 limit switch.

    9 Copyright by BIFFI Italia. All rights reserved.BIFFI is a subsidiary of Keystone International, Inc.

    BIFFC-0040-EN-9603

    QTC Series Electric Actuatorinstruction and operating manual

    IBS1 IBS2 OT/P OS1 OS2

    IAS1 IAS2 PT P CT/P CS1 CS2

    P CT/P CS1 CS2

    P OT/P H OS1 OS2

  • Contents may change without notice.

    Manually operate the actuator and,

    by rotating the handwheel, check

    that the indicator dial also rotates.

    Bring the dial exactly to the closed

    mark. At this point the switch status

    must change.

    Connect the ohmmeter to the

    terminals of the OS1 limit switch

    and bring the valve to the

    completely open position.

    Bring the dial indicator exactly to the

    open mark. As explained above,

    the switch status must change at

    this point.

    If these checks give a positive

    result, you can assume that the

    actuator setting has been carried

    out correctly and the paragraphs

    relevant to the electrical control

    group setting can be ignored.

    2.2) IF THE ACTUATOR IS DELIVERED

    SEPARATELY FROM THE VALVE,

    OR IF THE TESTS DESCRIBED

    UNDER THE PREVIOUS POINT

    PROVE NEGATIVE, it is necessary

    to adjust the electrical control group

    as described in the following

    paragraphs.

    3 - Electrical Connections

    Check the correspondence

    between the terminal numbers indicated

    on the wiring diagram and the position

    of terminals shown on the layout

    present on the cover back.

    Move the valve disk/ball from the

    fully closed position, by using the

    manual drive.

    Press the opening button and verify

    that the actuator effectively moves to the

    open position.

    If the opening control signal causes

    the closure of the valve, immediately

    stop the operation by pressing the

    STOP pushbutton on the local

    control panel.

    Invert two phases of the supply line

    and repeat the operation.

    Run the motor again and manually

    operate the torque/position swing

    lever P to trip the open torque/position

    switch, so as to check the correct

    operation of the switch itself.

    The actuator must stop.

    Repeat the above mentioned

    operation for the closing stroke, too.

    Actuators fitted with integral starter

    IS 2000: an autophase corrector/

    phase discriminator is built in the

    integral starter; two different

    working modes are selectable by

    dip-switch:

    1) autophase corrector which allows

    the actuator to run correctly

    indipendently from sense of rotation of

    the phases;

    2) phase discriminator which blocks the

    actuator and gives a local and remote

    alarm in case of incorrect sense of

    rotation of the phases.

    If, by pressing the button, the motor

    does not start, it is necessary to invert

    two phases of the supply line.

    10 Copyright by BIFFI Italia. All rights reserved.BIFFI is a subsidiary of Keystone International, Inc.

    QTC Series Electric Actuatorinstruction and operating manual

    BIFFC-0040-EN-9603

  • 4 - Torque and PositionSetting

    Necessary equipment : a 3 mm

    hexagonal key.

    4.1) VALVE TYPES AND SELECTION OF

    SETTING

    According to the type of valve to be

    operated, the actuator can be

    stopped by means of torque or

    position limit switches, as detailed in

    the following table:

    Valve type: front seal butterfly valve

    Closing: torque

    Opening: position

    Valve type: ball valve, butterfly valve,

    plug valve

    Closing: position

    Opening: position

    Before any setting operation, it is

    necessary to unscrew the

    adjustable mechanical stops.

    Hold the lock nut and remove the

    mechanical stop protection by

    unscrewing it.

    Hold the mechanical stop by means

    of a suitable Allen key and in the

    same time loosen the lock nut by

    one turn.

    Unscrew the mechanical stop for

    about 10 mm. Repeat the above

    operations for the other mechanical

    stop.

    Contents may change without notice.

    4.2) VALVE STOPPING ADJUSTMENT

    IN CLOSING BY POSITION LIMIT

    Electrically operate the valve until it

    comes to a nearly closed position.

    Manually bring the valve to the

    completely closed position by

    rotating the handwheel clockwise.

    The cams for the setting of the limit

    switches operation have an A zone

    (for electrical signalling) and a

    B zone (for position-stopping); the

    cams must always come into

    contact with the roller, in zone A.

    The following indications are valid

    for valves closing clockwise.

    For anti-clockwise closing, the

    wording closed should be

    replaced by open and vice-versa.

    Loosen the lock screw of the

    closing cam and rotate the cam until

    the limit switch operates CT/P, by

    means of zone B of the same cam

    (previous figures). Lock the cam in

    this position. Electrically bring the

    valve to a partially open position.

    Electrically operate the valve in

    closing until the actuator

    automatically stops: check the valve

    disk position or the marks

    on the valve.

    11

    Remove the seal washer.

    Zone B

    Zone A

    RollerRoller

    Closing Cam Opening Cam

    Zone B

    Zone A

    Copyright by BIFFI Italia. All rights reserved.BIFFI is a subsidiary of Keystone International, Inc.

    BIFFC-0040-EN-9603

    QTC Series Electric Actuatorinstruction and operating manual

  • 12 Contents may change without notice.

    Put the seal washer back in place

    and re-assemble the mechanical

    stop protection, both previously

    removed.

    Lock the protection cap.

    Electrically bring the valve to a

    partially open position.

    Electrically operate the valve in

    closing direction until the actuator

    automatically stops.

    Manually close the valve until it

    reaches the mechanical stop and

    check that the cam is still operating

    microswitch CT/P.

    Repeat the adjustment if the

    contrary occurs.

    Check that limit switches CS1 and

    CS2 have actually been tripped.

    Position of the cam when the

    actuator stops due to the

    intervention of the position limit

    switch.

    The roller is operated by zone B

    of the cam (previous figures). Check

    that the roller arm pushes the screw

    and operates the swing lever;

    the stopping and the position

    signalling is obtained.

    Electrical signalling of closed valve: the adjustment has alreadybeen carried out together with the

    positioning of the cam which

    causes the automatic stopping of

    the actuator.

    4.3) VALVE STOPPING ADJUSTMENT

    IN OPENING BY POSITION LIMIT

    Electrically operate the valve until it

    comes to a nearly open position.

    Complete the valve opening

    manoeuvre manually making

    sure the desired position is reached.

    Loosen the lock screw of the opening

    cam and rotate it until OT/P

    switch is operated by zone B of the cam

    (see previous figures).

    Lock the cam in this position.

    Roller

    Zone BLockScrew

    Closing Cam

    Screw

    Swing Lever

    Copyright by BIFFI Italia. All rights reserved.BIFFI is a subsidiary of Keystone International, Inc.

    QTC Series Electric Actuatorinstruction and operating manual

    BIFFC-0040-EN-9603

    Screw the closing mechanical stop

    until it reaches the end stroke.

    From here unscrew it by half a turn

    and lock it with the lock nut.

    Check the protrusion of the

    mechanical stop:

    for a stroke of 90 +_ 5 degrees,

    length L should be within the

    following values:

    Size L min L max

    F 50 16 mm 24 mm

    F100 22 mm 29 mm

    F200 22 mm 29 mm

    F400 25 mm 32 mm

    F800 26 mm 39 mm

    L m

    in.

    L m

    ax

  • To verify the correct setting, repeat

    the operations already described for

    closure setting, replacing the

    wording closed with the wording

    open and vice-versa, including the

    setting of the mechanical stops.

    Electrical signalling of openvalve: the same applies as for Electrical signalling of closed valve

    substituting the wording CS1 with

    the wording OS1.

    4.4) VALVE STOPPING ADJUSTMENT

    BY TORQUE LIMITATION

    The torque limiting device can

    always operate during closing and

    opening strokes.

    The nominal output torque of the

    actuator is indicated on the

    name-plate of the control group; the

    setting of the torque is possible

    from 25% to 100% both in closing

    and in opening.

    Screw

    Index

    Graduated Scale

    Screw

    existing valve, the torque limiting

    device should be set at a

    percentage value equal to the ratio

    between the value recommended

    by the valve manufacturer and the

    actuator nominal torque.

    For example:

    recommended value: 150 mKg

    actuator nominal torque: 250 mKg

    150percentage value to be set = 60%250

    Electrical signalling: after the above

    procedures, the valve is set

    for stopping by torque in closing; it

    is now necessary to set the

    cams for electrical signalling.

    Bring the valve to a closed position.

    Loosen the lock screw of the

    closing cam and rotate it until

    switches CS1 and CS2 are

    operated by zone A of the cam

    (see previous figures).

    Lock the cam in this position.

    Electrically bring the valve to a

    partially open position.

    Electrically operate the valve in

    closing until the actuator

    automatically stops, by means of

    the torque limiting device.

    Contents may change without notice.

    The value to be set can be read in

    percentage by means of the index

    on the graduated scale. To set

    the desired torque value, it is

    sufficient to manually operate the

    screw which will increase or

    decrease the rating value.

    Important: in case of actuators

    with reduced nominal torque, where

    the max set (max setting torque) is

    lower than the range 100% value

    shown on the label, the index stroke

    is reduced by Biffi by means of a

    suitable spacer. The scale is

    anyway always valid and refered to

    the range 100% value;

    for example:

    range 100% = 1,000 Nm

    max set = 800 Nm

    the index stroke is possible

    from 25% to 80%

    with index set at 80%, nominal

    torque = 800 Nm (max set value)

    with index set at 50%, nominal

    torque = 500 Nm (50% of the

    range 100% value).

    For a correct adjustment of the

    output torque, it is necessary to

    know the value of the torque

    required for closing or opening the

    valve: a slightly higher torque value

    has then to be set.

    Normally this operation is performed

    by the valve manufacturer

    while testing the motorized valve;

    the set value must be slightly

    higher than the value required by

    the valve to obtain perfect

    tightness.

    If no setting has been made or if the

    actuator has to be installed on an

    13 Copyright by BIFFI Italia. All rights reserved.BIFFI is a subsidiary of Keystone International, Inc.

    BIFFC-0040-EN-9603

    QTC Series Electric Actuatorinstruction and operating manual

  • Repeat the adjustment if the

    contrary occurs.

    Alternatively, taking into

    consideration a valve to be stopped

    by torque in opening, the above

    description is valid by replacing the

    term close with open and

    vice-versa, including the setting of

    the mechanical stops.

    5 - Setting the Trip Point of the Auxiliary Limit Switches

    Necessary equipment: a 3 mm

    hexagonal key.

    The auxiliary switch group, in the

    standard version, consists of two pairs

    of switches: IAS1 and IAS2; IBS1 and

    IBS2. Each pair is actuated by a single

    cam, therefore the tripping of each pair

    of switches is simultaneous.

    However, the tripping of each pair

    of switches is adjustable at any point

    along the valve stroke.

    Contents may change without notice.14

    5.1) SETTING OF THE TRIP POINT OF

    CS, OS, IAS, IBS LIMIT SWITCHES

    Necessary equipment: a 2.5 mm

    hexagonal key.

    For particular service needs, in

    certain cases the setting of some

    switches must be slightly delayed in

    respect to the others.

    With a 2.5 mm hexagonal key

    adjust the screw of the blade

    springs operating the switches

    (detail 1): by turning clockwise the

    adjustment screw a delayed tripping

    is obtained, by turning it anti-

    clockwise an advanced tripping is

    obtained.

    Caution: do not rotate the

    adjustment screw more than 3 turns

    from its rest position to avoid

    damages to the lever. The checking

    of the trip settings is made by

    comparing the tripping point

    difference by means of two

    ohmmeters connected to the two

    concerned switches.

    The tripping of each pair of switches is

    obtained by having the corresponding

    cam act on the relevant actuating lever.

    1

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    QTC Series Electric Actuatorinstruction and operating manual

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    Verify that limit switches CS1 and

    CS2 have been operated by the

    cam and that they have actually

    been tripped.

    Position of the cam when the

    actuator stops by the intervention

    of the torque limiting device: the

    roller is operated by zone A of

    the cam.

    Check that a 0.5 to 1 mm clearance

    is left between the roller arm and

    the screw.

    Screw the closing mechanical stop

    until it reaches the end stroke.

    From here unscrew it by half a turn

    and lock it with the lock nut.

    Check the protrusion of the

    mechanical stop, as previously

    described in this chapter.

    0,5 to 1 mmClearanceZone A

    Roller Arm

    Roller

    Screw

  • Contents may change without notice. 15

    CHAPTER 4

    Setting of the DialPosition Local Indicator

    INDEX

    1) Adjustment of the closing indication

    2) Adjustment of the opening indication

    1- Adjustment of the Closing Indication

    Bring the valve to closed position.

    Remove the cover of the switches

    box.

    Turn the lower indicator disk (white)

    until the CLOSED indication is

    vertical heading downwards.

    Assemble the cover of the switches

    box without fixing it, and check that

    the CLOSED indication on the

    indicator disk coincide exactly with

    the arrow on the cover.

    Correct any possible differences, as

    previously described.

    2- Adjustment of the Opening Indication

    Automatically bring the valve in

    completely open position.

    Turn the higher indicator disk

    (transparent) until the OPEN

    indication is vertical heading

    downwards.

    During this last operation be careful

    not to displace the lower disk.

    Assemble the cover of the switches

    box without fixing it and check

    that the OPEN indication on the

    indicator disk coincide exactly

    with the arrow on the cover.

    Correct any possible differences, as

    previously described.

    Fix the switches box cover making

    sure that the O-ring is in its place.

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  • Contents may change without notice.16

    Lift the transmitter arm and rotate the

    transmitter slide adjustment shaft until

    the ohmmeter indicates a value

    corresponding to about 5% of the

    transmitter full scale value.

    Note: the indication of the transmitter

    total resistance is stamped on its

    enclosure.

    Without disconnecting the ohmmeter,

    operate the actuator, bring the valve

    to the automatic opening position and

    take note of the transmitter resistance

    value in this position.

    Subtract from this value the resistance

    value previously set at closed valve

    position: the resistance range value thus

    obtained (referred to the actual valve

    stroke), is to be used for the correct

    adjustment of the equipment controlled

    by the transmitter.

    If necessary, in order to optimize the

    output value from the transmitter, it is

    possible to change the reduction ratio of

    the gearing that drives the transmitter.

    Loosen the locking screw of the

    transmitter arm.

    CHAPTER 5

    Setting of the Resistive-TypePosition Transmitter

    Legenda:

    1: Transmitter

    2: Transmitter arm

    3: Transmitter pinion

    4: Multigear wheel

    5: Current position transmitter

    The position transmitter is supplied

    with the full scale value required in

    the order.

    The value of the actual resistance

    transmitted according to the valve

    stroke can vary from 75% to 100%

    of the nominal full scale value; the

    correct operation of the equipments

    driven by the potentiometer is

    however ensured by the adjustable

    devices on all equipment controlled

    by the transmitter.

    Electrically operate the valve in

    closing direction until the actuator

    automatically stops.

    Connect an ohmmeter to the

    terminals which link the zero and

    the transmitter slider.

    1 2 3 4 5

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  • Contents may change without notice. 17

    Caution: The arm is loaded by aninternal spring that will return to

    its rest position as soon as the locking

    screw is loosened.

    This small spring device assures that the

    transmitter pinion is always

    well engaged with the multigear wheel,

    thus obtaining reduced gear back-lash

    and easier adjustment.

    transmitter pinion to the desired

    multigear wheel: the larger gear expands

    the range of the output value and the

    smaller gear reduces it.

    Insert the hexagonal key into the arm

    locking screw, rotate the bush by

    approximately half a turn and fix the bush

    in this position.

    Repeat the previous operations to check

    the new output values.

    Slide the transmitter arm on the

    supporting bar and engage the

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  • Contents may change without notice.18

    CHAPTER 6

    Seal Application to theElectrical Enclosures

    A safety seal can be applied to the limit

    switch enclosure to prevent the removal

    of the cover by non-authorized

    personnel.

    Drill a hole on the housing

    (max dia.= 2 mm), passing through the

    M6 threaded hole of the enclosure

    cover.

    Attention: When drilling the hole, be

    careful not to damage

    the threads of the M6 hole.

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    QTC Series Electric Actuatorinstruction and operating manual

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  • Contents may change without notice. 19

    CHAPTER 7

    Lubrication

    INDEX

    1) Lubrication inspection

    2) Lubrication tables

    3) Comparison table of approvedlubricant substitutes

    The actuator is fitted with oil plugs (parts

    1 and 2), so that for any assembly on the

    valve at least one oil plug is located on

    the upper part of the housing and one

    on the lower part.

    The actuator is supplied filled with oil and

    greased where necessary.

    ACTUATOR OIL QUANTITY

    SIZE (lt)

    F 50 1.8

    F100 1.8

    F200 1.8

    F400 3.3

    F800 3.3

    1 - Lubrication Inspection

    In normal working conditions, the

    lubricating oil has practically an indefinite

    lifespan. In case it is necessary to top up

    to the max. oil level, the same type of

    lubricant should be used.

    2 - Lubrication Tables

    Ambient Temperature from -60C to +65C

    OIL:ISO viscosity grade VG 46

    Viscosity:

    Engler (at 50C) 5.5-6.7E

    cSt (at 40C) 41.4-50.5 cSt

    GREASE:FUCHS FN20

    AMBIENT TEMPERATURE AND LUBRICANT TYPES:Ambient Temperaturefrom -30C to +85C

    OIL:ISO viscosity grade VG 150

    Viscosity:

    Engler (at 50C) 18-22E

    cSt (at 40C) 135-165 cSt

    GREASE:ISO viscosity grade X1 (EP1)

    1

    2

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  • Contents may change without notice.20

    Ambient temperature:

    from -30C to +85C

    OIL MANUFACTURERISO viscosity grade VG 150

    AGIP BLASIA 150

    AMOCO PERMAGEAR EP LUBRICANT 150

    BP ENERGOL GR-XP 150

    CHEVRON NL GEARCOMPOUNG 150

    ELF REDUCTELF SP 150

    ESSO SPARTAN EP 150

    GULF EP LUBRICANT HP 150

    IP IP MELLANA OIL 150

    MOBIL MOBILGEAR 629

    SHELL OMALA OIL 150

    TEXACO MEROPALUBRICANT 150

    TOTAL CARTER EP 150

    GREASE MANUFACTURERISO viscosity grade X1 (EP1)

    AGIP GR MU/EP1

    BP LTX 1

    ELF EPEXA 1

    ESSO BEACON EP1

    3 - Comparison Table of Approved Lubricant Substitutes

    AMBIENT TEMPERATURE AND LUBRICANT TYPES:Ambient Temperature:

    from -60C to +65C

    OIL MANUFACTURERISO viscosity grade VG 46

    SHELL HD75W/90

    SYNECO WINTER PLUS

    GREASE MANUFACTURER

    AGIP FN 20/00

    TEXACO LOW TEMPERATURE GREASE EP

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  • Contents may change without notice.

    CHAPTER 8

    Maintenance

    INDEX

    1) Standard maintenance

    2) Special maintenance

    1 - Standard Maintenance

    QTC actuators should not require

    maintenance, even after long

    periods of operation in the most

    unfavourable conditions.

    They are designed to perform more

    operations than actually

    requested on any type of plant.

    It is however advisable to check the

    actuator periodically by the

    following simple procedures:

    1.1) check that there is no oil leakage

    from the housing, due to accidental

    damage; the oil level should be

    approx 20 mm. from the top of the

    housing;

    1.2) check the external part of the

    actuator, to verify possible

    damages (breakages of the

    handwheel, of the glass of the

    local position indicator); restore the

    actuator to its original condition;

    1.3) re-paint the areas where the paint

    might have come off (after removing

    all rust), especially if the actuator is

    installed in chemically aggressive or

    saline environments;

    1.4) check that the nuts and bolts fixing

    the actuator to the valve are tightly

    secured; if necessary, re-tighten with

    a dynamometric key (for the

    tightening torque see installation,

    chapt. 2);

    1.5) for a particularly severe actuator

    service, the standard maintenance

    operations must be carried out more

    frequently, as shown by the standard

    maintenance card of the plant where

    the actuator operates;

    1.6) if the actuator operation is not

    frequent, periodically carry out

    electrical and manual operations (only

    if allowed by the working conditions

    of the plant).

    2 - Special Maintenance

    Approx. every 3 years, according to the

    scheduled maintenance of the plant

    where the actuator operates, it is necessary:

    - to check the electrical enclosures and all

    components therein;

    - to replace the O-rings;

    - to replace the oil if the actuator operates

    in severe working conditions either due

    to frequency of operation or high

    temperature conditions.

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    BIFFC-0040-EN-9603

    QTC Series Electric Actuatorinstruction and operating manual

  • 2 - The Motor Cannot Unseat the Valve

    2.1) Try to unseat the valve by means of

    manual operation.

    2.2) After unseating it, try to make the

    actuator work electrically.

    3 - The Motor Is very Hot and Does not Start

    3.1) Wait until the motor cools down and

    the normally closed contact of the

    thermal switch automatically resets.

    3.2) When the motor is cold, check the

    continuity of the terminals

    connected to the thermal switch.

    3.3) Check that the number of

    operations per hour and their

    duration is suitable for the actuator

    service (S2 or S4, see motor

    name-plate or test certificate

    attached to the actuator).

    3.4) Check that the valve operating time

    does not exceed the original

    operating time.

    3.5) ALWAYS check the cause of

    abnormal overheating.

    Contents may change without notice.

    4 - The Actuator Works Electrically without Operating the Valve

    4.1) Check that the valve is working in

    manual operation; if not, it is

    necessary to check the manual

    control area, or the kinematic chain

    from the motor to the drive sleeve.

    5 - Excessive Torque for the Valve Operation; the Motor Overheats during Operation

    5.1) Valve packing too tight: loosen the

    gland bolt nuts.

    5.2) Ensure that there are no axial forces

    on the valve stem by leaving

    adequate axial clearance between

    the stem and the drive bush.

    5.3) Check that the internal valve trim or

    the reducer gears are well

    lubricated and not damaged.

    6 - Incorrect Valve Seating6.1) Valves which are stopped by the

    intervention of the torque limit

    switch in closing: increase the

    output torque of the actuator by

    adjusting the torque limit switch.

    6.2) Valves which are stopped by the

    intervention of the position limit

    switches in closing: check that the

    valve reaches its seat position; then

    re-adjust the setting of the limit

    switches.

    22

    CHAPTER 9

    Trouble-shooting

    INDEX

    1) The actuator does not workelectrically

    2) The motor cannot unseat the valve

    3) The motor is very hot anddoes not start

    4) The actuator works electrically withoutoperating the valve

    5) Excessive torque for the valveoperation; the motor overheats duringoperation

    6) Incorrect valve seating

    7) Jammed valve in closed position

    8) The actuator does not stop in fully open or closed position

    1 - The Actuator Does not Work Electrically

    1.1) Check the supply or control voltage

    values and compare them with the

    data shown on the name-plate of

    the motor and actuator.

    1.2) Check the wiring diagram and the

    continuity of the power and control

    connections.

    1.3) Check the continuity of the motor

    phases.

    1.4) If there is a phase discriminator,

    reverse two phases of the supply

    line.

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    QTC Series Electric Actuatorinstruction and operating manual

    BIFFC-0040-EN-9603

  • Contents may change without notice. 23

    6.3) The internal trims of the valve may be damaged.

    7 - Jammed Valve in Closed Position

    7.1) Check that the opening electrical

    signal corresponds to the rotation of

    the actuator in the opening

    operation.

    7.2) Try to move the valve from the

    jammed condition by the manual

    operation.

    8 - The Actuator Does not Stop in Fully Open or Closed Position

    8.1) Check the exact position of the limit

    switch cams.

    8.2) Make sure that the operating cams

    are securely fixed to their shaft.

    8.3) Check the correct electrical

    operation of the torque/position limit

    switch (CT/P and OT/P).

    8.4) Check that the control cables are

    connected to the torque

    and position limit switches (CT/P

    and OT/P) as shown on the wiring

    diagram.

    8.5) Check the functioning of the

    kinematic chain operating the

    torque/position limit switches (CT/P

    and OT/P).

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  • Contents may change without notice.

    ITEM RECOMENDED SPARE PARTSQ.ty DESCRIPTION MATERIAL

    71 1 Circlip Carbon Steel

    72 1 Circlip Carbon Steel73 1 Gear Alloy Steel

    74 1 Motor Pinion Alloy Steel

    70.1 1 Key Carbon Steel

    70.2 2 Thrust Bearing Carbon Steel70.3 4 Thrust Shoe Carbon Steel70.4 1 Worm Gear Alloy Steel70.5 1 Spring Alloy Steel70.6 1 Bearing Ring Nut Alloy Steel

    Electric Motor

    57 1 Wiring Loom Holder -

    -

    58 1 Connector Support Carbon Steel59 1 -60 1 O-Ring NBR61 1 Motor Gasket Fiber62 1 Circlip Carbon Steel63 1 Housing Aluminium64 1 O-Ring NBR65 1 Worm Gear Cover Aluminium66 2 Screw Carbon Steel67 2 Washer Carbon Steel

    68 1 Bearing Support Carbon Steel69 1 Bearing Carbon Steel70 1 Worm Gear Group -

    42.1 10 Screw Stainless Steel42.2 1 Wiring connection label Plastic

    42.3 1 Terminal Board Cover Aluminium42.4 86 Screw Stainless Steel42.5 1 O-Ring NBR

    30 1 Bearing Carbon Steel42 1 Terminal Board

    24 2 Screw Carbon Steel3

    CHAPTER 10

    Recommended SpareParts and SectionalDrawings

    INDEX1) Commissioning spare parts kits

    2) Recommended spare parts for

    two-years operation

    1 - Commissioning Spare Parts Kits

    Size Code

    F 50 SPF050/001

    F100 SPF100/001

    F200 SPF200/001

    F400 SPF400/001

    F800 SPF800/001

    2 - Recommended Spare Parts for Two-Years Operation

    Please refer to the marked-up part list

    items on the attached sectional drawings.

    Important: for any order of spare parts,

    the serial number of the actuator must

    be specified.

    24

    QTC#F50 through F800 table 1

    1 O-Ring NBR

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  • Contents may change without notice. 25

    QTC#F50 through F800 table 1

    Copyright by BIFFI Italia. All rights reserved.BIFFI is a subsidiary of Keystone International, Inc.

    BIFFC-0040-EN-9603

    QTC Series Electric Actuatorinstruction and operating manual

    24

    3

    63

    64

    65

    66 - 67

    68

    69

    70

    30

    7142

    57

    58

    59

    60

    61

    62

    72

    73

    74

    42.1

    42.2

    42.3

    42.4

    42.5

    70.1

    70.4 70.5

    70.2 - 70.3 70.2 - 70.3

    70.6

  • Contents may change without notice.

    Carbon Steel

    26

    RECOMENDED SPARE PARTS

    28 1 Circlip Stainless Steel29 1 Position Transmission Shaft Brass30 1 Bearing Carbon Steel31 3 Screw Carbon Steel32 2 O-Ring NBR33 8 Nut Carbon Steel34 8 Washer Carbon Steel35 1 Oil Plug Carbon Steel36 8 Stud Bolt Alloy Steel37 1 2nd Epicycloidal Stage Group37.1 1 Planet Wheel Shoulder Plate Carbon Steel37.237.337.437.537.637.738394040.140.240.340.440.541

    333331111333612

    ScrewWasherPlanet Wheel Pin 2nd StagePlanet Wheel 2nd StageBushPlanet Wheel Bush 2nd StageSupport PlateCoupling Block Bush1st Epicycloidal Stage GroupBushPlanet Wheel Pin 1st StagePlanet Wheel 1st StageCirclipPinion 2nd StageWasher

    Carbon SteelCarbon SteelAlloy SteelAlloy SteelSteel+Bronze+TeflonCast Ductile IronCarbon SteelBronze

    Steel+Bronze+TeflonAlloy SteelAlloy SteelCarbon SteelAlloy SteelNylon

    22 4 Screw Carbon Steel23 1 Heater -

    -

    -

    24 6 Screw25 6 Washer Carbon Steel26 1 Torque Transmission Device Brass27 1 O-Ring NBR

    Internal Gear

    9 1 Manual Drive Wheel Carbon Steel10 2 Worm Wheel Sliding Washer Carbon Steel11 1 Carbon Steel12 2 Mechanical stop protection Carbon Steel13 2 Nut Carbon Steel14 4 Seal Washer Steel+rubber15 4 Pin Carbon Steel16 1 Coupling Block Cast Ductile Iron17 2 Mechanical Stops Alloy Steel18 1 O-Ring NBR19 1 Insert Shoulder Ring Carbon Steel20 1 Insert Carbon Steel21 1 Control Group Cover -

    4 1 Control Group5 1 O-Ring NBR6 1 Bearing Carbon Steel7 1 Worm Wheel Aluminium-Bronze8 1 Worm Wheel Support Aluminium

    3 2 O-Ring NBR2 1 Additional Control Group1

    ITEM

    QTC#F50 through F400 table 2Q.ty DESCRIPTION MATERIAL

    1 Dial Indicator Group --

    -

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  • Contents may change without notice. 27

    QTC#F50 through F400 table 2

    Copyright by BIFFI Italia. All rights reserved.BIFFI is a subsidiary of Keystone International, Inc.

    BIFFC-0040-EN-9603

    QTC Series Electric Actuatorinstruction and operating manual

    2

    3

    4

    5

    6

    7

    8

    9

    10

    11

    12

    13 14

    15

    16

    17

    18

    19

    20

    21 22

    23

    24 25

    26

    27

    28

    29

    30

    31

    32

    32

    33 34

    35

    36

    37

    38

    39

    24 25

    40

    41

    37.1

    37.2 37.3

    37.4

    37.5

    37.6

    37.7

    40.3

    40.4

    40.5

    40.1

    40.2

    1

  • Contents may change without notice.30

    ITEM

    -

    RECOMENDED SPARE PARTS

    28 1 Circlip Stainless Steel29 1 Position Transmission Shaft Brass30 1 Bearing Carbon Steel31 3 Screw Carbon Steel32 2 O-Ring NBR33 8 Nut Carbon Steel34 8 Washer Carbon Steel35 1 Oil Plug Carbon Steel36 8 Stud Bolt Alloy Steel37 1 3rd Epicycloidal Stage Group37.1 1 Planet Wheel Shoulder Plate Carbon Steel37.237.337.437.537.637.738394040.140.240.340.440.541

    333331111333612

    ScrewWasherPlanet Wheel Pin 3rd StagePlanet Wheel 3rd StageBushPlanet Wheel Bush 3rd StageSupport PlateCoupling Block Bush1st Epicycloidal Stage GroupBushPlanet Wheel Pin 1st StagePlanet Wheel 1st StageCirclipPinion 2nd StageWasher

    Carbon SteelCarbon SteelAlloy SteelAlloy SteelSteel+Bronze+TeflonCast Ductile IronCarbon SteelBronze

    Steel+Bronze+TeflonAlloy SteelAlloy SteelCarbon SteelAlloy SteelNylon

    76 1 2nd Epicycloidal Stage Group76.1 3 Bush Steel+Bronze+Teflon76.2 3 Planet Wheel Pin 2nd Stage Alloy Steel76.3 3 Planet Wheel 2nd Stage Alloy Steel76.4 6 Circlip Carbon Steel76.5 1 Pinion 3rd Stage Alloy Steel77 1 Flange Cast Ductile Iron78 1 Internal Gear 3rd Stage Carbon Steel79 4 Pin Carbon Steel80 8 Screw Carbon Steel81 8 Washer Steel+rubber82 2 O-Ring NBR

    22 4 Screw Carbon Steel23 1 Heater -

    -

    25 6 Washer Carbon Steel26 1 Torque Transmission Device Brass27 1 O-Ring NBR

    Internal Gear

    9 1 Manual Drive Wheel Carbon Steel10 2 Worm Wheel Sliding Washer Carbon Steel11 1 Carbon Steel12 2 Mechanical stop protection Carbon Steel13 2 Nut Carbon Steel14 4 Seal Washer Steel+rubber15 4 Pin Carbon Steel16 1 Coupling Block Cast Ductile Iron17 2 Mechanical Stops Alloy Steel18 1 O-Ring NBR19 1 Insert Shoulder Ring Carbon Steel20 1 Insert Carbon Steel21 1 Control Group Cover -

    4 1 Control Group5 1 O-Ring NBR6 1 Bearing Carbon Steel7 1 Worm Wheel Aluminium-Bronze8 1 Worm Wheel Support Aluminium

    3 2 O-Ring NBR2 1 Additional Control Group1

    QTC#F800 table 4Q.ty DESCRIPTION MATERIAL

    1 Dial Indicator Group --

    -

    -

    Carbon Steel24 6 Screw

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  • QTC#F800 table 4

    Contents may change without notice. 31 Copyright by BIFFI Italia. All rights reserved.BIFFI is a subsidiary of Keystone International, Inc.

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    QTC Series Electric Actuatorinstruction and operating manual

    1

    2

    3

    4

    5

    6

    7

    8

    9

    10

    11

    76

    77

    78

    79

    12

    13 14

    15

    16

    17

    18

    19

    20

    21 22

    23

    24 25

    26

    27

    28

    29

    30

    31

    24 25

    32

    80 81

    82

    33 34

    35

    36

    37

    39

    38

    40

    41

    37.1

    37.2 37.3

    37.4

    37.5

    37.6

    37.7

    40.3

    40.4

    40.5

    40.1

    40.2

    76.3

    76.4

    76.5

    76.1

    76.2

  • Contents may change without notice.28

    DESCRIPTIONITEM RECOMENDED SPARE PARTS

    Screw

    48 1 1st Epicycloidal Stage Pinion Alloy Steel49 1 Manual Drive Flange Aluminium50 4 Carbon Steel51 1 Key Carbon Steel52 1 Handwheel -53 1 Screw Alloy Steel54 1 Handwheel Spacer Nylon55 1 Seal Ring NBR56 1 O-Ring NBR

    43 2 Bush Steel+Bronze+Teflon44 2 Thrust Bearing Carbon Steel45 4 Thrust Shoe Carbon Steel46 1 Manual Drive Worm Gear Carbon Steel47 1 Name Plates Group -

    42 1 Terminal Board Group -35 1 Oil Plug Carbon Steel22

    QTC#F50 through F800 table 3Q.ty MATERIAL

    8 Screw Carbon Steel

    Copyright by BIFFI Italia. All rights reserved.BIFFI is a subsidiary of Keystone International, Inc.

    QTC Series Electric Actuatorinstruction and operating manual

    BIFFC-0040-EN-9603

  • Contents may change without notice. 29

    QTC#F50 through F800 table 3

    Copyright by BIFFI Italia. All rights reserved.BIFFI is a subsidiary of Keystone International, Inc.

    BIFFC-0040-EN-9603

    QTC Series Electric Actuatorinstruction and operating manual

    42

    22

    43

    44 - 45

    46

    35

    47

    48

    44 - 45

    43

    49

    50

    51

    52

    53

    54

    55

    56

    22

  • Copyright by BIFFI Italia. All rights reserved.BIFFI is a subsidiary of Keystone International, Inc.

    BIFFC-0040-EN-9603

    Local Sales Organizations:

    BIFFI ITALIA s.r.l. - Loc. Caselle S. Pietro - 29017 Fiorenzuola dArda - Piacenza - ITALY - Tel. (0523) 944411 - Fax (0523) 941885 - Telex 530107 - 531447

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    ./G

    rafic

    he M

    alve

    zzi/2

    .000

    /05.

    96Q

    TC-I

    M-E

    Rev

    . 2


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