Date post: | 20-Jan-2016 |
Category: |
Documents |
Upload: | muhammad-younas |
View: | 282 times |
Download: | 42 times |
© 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 enclosures’covers
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 enclosures’covers
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 the“layout” 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 customer’srequests: 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 already
been 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 open
valve: 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
© 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
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.
© 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.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
© 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. 17
Caution: The arm is loaded by an
internal 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
© 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.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.
© 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. 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 -60°C to +65°C
OIL:
ISO viscosity grade VG 46
Viscosity:
Engler (at 50°C) 5.5-6.7°E
cSt (at 40°C) 41.4-50.5 cSt
GREASE:
FUCHS FN20
AMBIENT TEMPERATURE AND LUBRICANT TYPES:
Ambient Temperaturefrom -30°C to +85°C
OIL:
ISO viscosity grade VG 150
Viscosity:
Engler (at 50°C) 18-22°E
cSt (at 40°C) 135-165 cSt
GREASE:
ISO viscosity grade X1 (EP1)
1
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
Contents may change without notice.20
Ambient temperature:
from -30°C to +85°C
OIL MANUFACTURER
ISO 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 MANUFACTURER
ISO 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 -60°C to +65°C
OIL MANUFACTURER
ISO viscosity grade VG 46
SHELL HD75W/90
SYNECO WINTER PLUS
GREASE MANUFACTURER
AGIP FN 20/00
TEXACO LOW TEMPERATURE GREASE EP
© 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 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.
21© 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 - 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.
© 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. 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).
© 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.
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
© 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. 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 --
-
© 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. 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
© 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
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.
BIFFC-0040-EN-9603
“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 d’Arda - Piacenza - ITALY - Tel. (0523) 944411 - Fax (0523) 941885 - Telex 530107 - 531447
A. C
./G
rafic
he M
alve
zzi/2
.000
/05.
96Q
TC-I
M-E
Rev
. 2