www.Fisher.com D103175X012 Design GX Control Valve and Actuator System Contents Introduction 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Scope of Manual 1 . . . . . . . . . . . . . . . . . . . . . . . . . Description 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Specifications 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . Valve Installation 2 . . . . . . . . . . . . . . . . . . . . . . . . . . Maintenance 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Actuator Maintenance 4 . . . . . . . . . . . . . . . . . . . . . FIELDVUEr DVC2000 Digital Valve Controller Mounting 7 . . . . . . . . . . . . . . . . . . . . . Packing Maintenance 9 . . . . . . . . . . . . . . . . . . . . . Replacing Packing 9 . . . . . . . . . . . . . . . . . . . . . . . . Valve Trim Maintenance 13 . . . . . . . . . . . . . . . . . . Bellows Maintenance 16 . . . . . . . . . . . . . . . . . . . . Handwheel Operation 17 . . . . . . . . . . . . . . . . . . . . . Parts Ordering 29 . . . . . . . . . . . . . . . . . . . . . . . . . . . . Parts Kits 30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Parts List 31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Introduction Scope of Manual This instruction manual includes installation, maintenance, and parts information for the Design GX control valve and actuator system. No person may install, operate or maintain a Design GX valve and actuator system without first D being fully trained and qualified in valve, actuator and accessory installation, operation and maintenance, and D carefully reading and understanding the contents of this manual. If you have any questions about these instructions contact your Emerson Process Managementt sales office before proceeding. Description The Fisher Design GX is a compact, state-of-the-art control valve and actuator system, designed to control a wide range of process gases, vapors, and fluids. Figure 1. Design GX Control Valve, Actuator, and FIELDVUEr DVC2000 Series Digital Valve Controller W8861 The Design GX is rugged, reliable, and easy to select. It requires no actuator sizing -- the actuator selection is automatic once the valve body construction is selected. The Design GX meets the requirements of both EN and ASME standards. It is available with a complete accessory package, including the FIELDVUE DVC2000 Series integrated digital valve controller. Note Neither Emersonr, Emerson Process Management, Fisherr, nor any of their affiliated entities assumes responsibility for the selection, use and maintenance of any product. Responsibility for the selection, use, and maintenance of any product remains with the purchaser and end-user. Instruction Manual Form 5770 June 2006 GX Valve and Actuator
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www.Fisher.com
D10
3175
X01
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Design GX Control Valve and Actuator SystemContents
Scope of ManualThis instruction manual includes installation,maintenance, and parts information for the DesignGX control valve and actuator system.
No person may install, operate or maintain a DesignGX valve and actuator system without first � beingfully trained and qualified in valve, actuator andaccessory installation, operation and maintenance,and � carefully reading and understanding thecontents of this manual. If you have any questionsabout these instructions contact your EmersonProcess Management� sales office beforeproceeding.
DescriptionThe Fisher Design GX is a compact, state-of-the-artcontrol valve and actuator system, designed tocontrol a wide range of process gases, vapors, andfluids.
Figure 1. Design GX Control Valve, Actuator, andFIELDVUE� DVC2000 Series Digital Valve Controller
W8861
The Design GX is rugged, reliable, and easy toselect. It requires no actuator sizing -- the actuatorselection is automatic once the valve bodyconstruction is selected.
The Design GX meets the requirements of both ENand ASME standards. It is available with a completeaccessory package, including the FIELDVUEDVC2000 Series integrated digital valve controller.
Note
Neither Emerson�, Emerson ProcessManagement, Fisher�, nor any of theiraffiliated entities assumesresponsibility for the selection, useand maintenance of any product.Responsibility for the selection, use,and maintenance of any productremains with the purchaser andend-user.
Instruction ManualForm 5770June 2006 GX Valve and Actuator
CW2M (sizes DN 25 through DN 100 only) CW2M (sizes 1- through 4-inch only)
Face-to-Face Dimensions Consistent with EN 558-1 Consistent with EN 558-2 (same as ISA S75.03)
Shutoff per IEC 60534-4 and ANSI/FCI 70-2
Metal seat - Class IV (standard)
Metal seat - Class V (optional)
PTFE seat - Class VI (optional)(1)
Flow Direction Flow-up only
Flow ControlCharacteristics
Equal Percentage and Linear
Trim Style
Port Diameters Trim Style Description4.8 mm Micro-Flow trim (unbalanced)
9.5, 14, 22 mm Stem-Guided with Contoured Plug (unbalanced)
36, 46 mm Port-Guided Plug (unbalanced)
70, 90, 136 mm Balanced Trim with Contoured plug (standard) or UnbalancedPort-Guided Plug (optional)
Travel Stop Available as an option1. For 4.8 to 14 mm ports, Class VI shutoff is achieved without PTFE seat.
Valve Installation
WARNING
Always wear protective gloves,clothing, and eyewear whenperforming any installation operationsto avoid personal injury.
Personal injury or equipment damagecaused by sudden release of pressureor bursting of pressure retaining partsmight result if service conditionsexceed those for which the productwas intended. To avoid injury ordamage, provide a relief valve for overpressure protection as required bygovernment or accepted industrycodes and good engineering practices.
Check with your process or safetyengineer for any additional measuresthat must be taken to protect againstprocess media.
If installing into an existingapplication, also refer to the WARNINGat the beginning of the Maintenancesection in this instruction manual.
CAUTION
This valve is intended for a specificrange of pressures, temperatures andother application specifications.Applying different pressure andtemperatures to the valve could resultin parts damage, malfunction of thecontrol valve or loss of control of theprocess. Do not expose this product toservice conditions or variables otherthan those for which the product wasintended. If you are not sure whatthese conditions are you shouldcontact your Emerson ProcessManagement sales office for morecomplete specifications. Provide theproduct serial number (shown on thenameplate, figure 2) and all otherpertinent information.
WARNING
If you move or work on an actuatorinstalled on a valve with loadingpressure applied, keep your hands andtools away from the stem travel path toavoid personal injury. Be especially
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Figure 2. Design GX Nameplate Examples
GE01296-E
AIR-TO-CLOSE (SPRING-TO-OPEN)WITH EQUAL PERCENTAGE TRIM
AIR-TO-OPEN (SPRING-TO-CLOSE)WITH LINEAR TRIM
careful when removing the stemconnector to release all loading on theactuator stem whether it be from airpressure on the diaphragm orcompression in the actuator springs.Likewise take similar care whenadjusting or removing any optionaltravel stop. Refer to the relevantactuator Maintenance Instructions.
If hoisting the valve take care toprevent people from being injured incase the hoist or rigging slips. Be sureto use adequately sized hoists andchains or slings to handle the valve.
1. Before installing the valve, inspect it to be certainthat the valve body cavity is free of all foreignmaterial. Clean out all pipelines to remove scale,welding slag and other foreign material.
2. The control valve assembly may be installed inany orientation unless limited by seismic criteria.However, the normal method is with the actuatorvertical above the valve. Flow through the valvemust be in the direction indicated by the arrow caston the valve.
3. Use accepted piping practices when installing thevalve in the pipeline. Use a suitable gasket betweenthe valve and the pipeline flanges.
4. If continuous operation is required duringinspection or maintenance, install isolating valves oneither side of the control valve with a bypass valve tocontrol the flow while the control valve is receivingmaintenance.
WARNING
Personal injury could result frompacking leakage. Valve packing istightened before shipment; howeverthe packing might require somereadjustment to meet specific serviceconditions.
Maintenance
WARNING
Avoid personal injury or propertydamage from sudden release ofprocess pressure or bursting of parts.Before performing any maintenanceoperations:
� Always wear protective gloves,clothing, and eyewear whenperforming any maintenanceoperations to avoid personal injury.
� Disconnect any operating linesproviding air pressure, electric poweror a control signal to the actuator. Besure the actuator cannot suddenlyopen or close the valve.
� Use bypass valves or completelyshut off the process to isolate thevalve from the process pressure.Relieve the process pressure fromboth sides of the valve.
� Depending on the actuatorconstruction, it will be necessary tomanage the pneumatic actuatorloading pressure and any actuatorspring pre-compression. It is essentialto refer to the relevant actuatorinstructions in this manual to ensuresafe removal of the actuator from thevalve.
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� Use lock-out procedures to besure that the above measures stay ineffect while you work on theequipment.
� The valve packing box maycontain process fluids that arepressurized, even when the valve hasbeen removed from the pipeline.Process fluids may spray out underpressure when removing the packinghardware or packing rings, or whenloosening the packing box pipe plug.
� Check with your process or safetyengineer for any additional measuresthat must be taken to protect againstprocess media.
Note
Whenever a gasket seal is disturbedby removing or shifting gasketedparts, install a new gasket duringreassembly. This ensures a goodgasket seal because the used gasketmay not seal properly.
Actuator Maintenance
The following sections provide procedures foractuator maintenance. Refer to figures 15, 16, 17,and 18.
The actuator soft parts may require periodicreplacement. This includes the diaphragm (key 10),actuator rod bushing (key 19), and the actuator rodseal (key 20).
If the actuator stroking direction (air-to-open orair-to-close) is unknown, refer to the nameplate ontop of actuator casing and figure 2.
Note
When the GX actuator is equipped withthe integrated FIELDVUE DVC2000Series digital valve controller (figure1), additional considerations may berequired. Refer to the FIELDVUEDVC2000 Digital Valve ControllerMounting section of this manual foradditional instruction.
Actuator Disassembly (For Air-to-OpenConstructions - see figures 15 or 16)1. Connect a separate air supply to the lowerdiaphragm casing via the air supply connection onthe yoke (as shown in figure 15 or 16) and applysufficient air pressure to raise the valve plug/stem offthe seat to mid-travel.2. Remove the stem connector nut half (key 23),stem connector bolt half (key 24), and travelindicator (key 26).3. Push the valve plug/stem (key 3) down until itcontacts the seat.4. Loosen the locknut (key 28) and thread the stemadjustor nut (key 27) down until it clears the top ofthe valve plug/stem (key 3).5. Shut off the air pressure and disconnect theseparate air supply to the lower diaphragm casing(as shown in figure 15 or 16).
WARNING
To avoid personal injury or propertydamage due to actuator springs (key12) being under compression, removethe long cap screws (key 16) last.The upper actuator casing may remainfixed to the diaphragm and lowercasing during disassembly, even if thecasing cap screws have beenloosened. If this happens, the actuatorsprings are still under compression.The upper casing could suddenlycome loose and jump, due to thecompressed energy of the springs. Ifthe upper casing is stuck to thediaphragm and lower casing when youbegin loosening the casing capscrews, pry the casings apart with aprying tool. Always ensure that thesprings are dispersing energy and theupper casing is moving against thelong bolts during disassembly.
6. Remove the short actuator casing cap screwsand hex nuts (keys 17 and 18) first. Once thesehave been removed from the actuator assembly,carefully remove the long actuator cap screws andhex nuts (keys 16 and 18), alternating between themto gradually release the spring energy(compression).7. Remove the upper diaphragm casing (key 9) andthe actuator springs (key 12).8. Lift off the actuator stem/diaphragm assembly(includes keys 22, 11, 10, 14, 13, and 15) and
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remove the cap screw (key 14), actuator spacer (key 13), actuator rod (key 22), and washer (key 15).
9. Replace the diaphragm (key 10), actuator rodbushing (key 19), and actuator rod seal (key 20), asneeded.
Actuator Disassembly (For Air-to-CloseConstructions - see figure 17 or 18)1. Remove the stem connector nut half (key 23),stem connector bolt half (key 24), and travelindicator (key 26).
WARNING
To avoid personal injury or propertydamage due to actuator springs (key12) being under compression, removethe long cap screws (key 16) last.
The upper actuator casing may remainfixed to the diaphragm and lowercasing during disassembly, even if thecasing cap screws have beenloosened. If this happens, the actuatorsprings are still under compression.The upper casing could suddenlycome loose and jump, due to thecompressed energy of the springs. Ifthe upper casing is stuck to thediaphragm and lower casing when youbegin loosening the casing capscrews, pry the casings apart with aprying tool. Always ensure that thesprings are dispersing energy and theupper casing is moving against thelong bolts during disassembly.
2. Remove the short actuator casing cap screwsand hex nuts (keys 17 and 18) first. Once thesehave been removed from the actuator assembly,carefully remove the long actuator cap screws andhex nuts (keys 16 and 18), alternating between themto gradually release the spring energy(compression).
3. Remove the upper diaphragm casing (key 9).
4. Lift off the actuator stem/diaphragm assembly(includes keys 22, 11, 10, 14, 13, and 15) andremove the cap screw (key 14), actuator spacer (key 13), actuator rod (key 22), and washer (key 15).
5. Remove the actuator springs (key 12).
Table 2. Design GX Maximum Rated Travel
ACTUATOR SIZENUMBER OF
CASING BOLTSTRAVEL
mm
225 6 20
750 10 20
1200 16 40 or 60
Table 3. Body Nut (Key 7) Torque Requirements
VALVE SIZETORQUE
N�m lbf�ft
DN 15, 20, 25 (0.5, 0.75, 1-inch)
38.2 28.2
DN 40 and DN 50(1.5 and 2-inch)
65.5 48.3
DN 80 (3-inch) 157 116
DN 100 and DN 150(4- and 6-inch)
284 209
Table 4. Yoke/Extension Bonnet Nut (Key 46) TorqueRequirements (used on Extension Bonnet and Bellows
6. Replace the diaphragm (key 10), actuator rodbushing (key 19), and actuator rod seal (key 20), asneeded.
Actuator Assembly For Air-to-OpenConstructions (or to Change Action toAir-to-Open - see figure 15 or 16)1. Install the diaphragm (key 10) on the diaphragmplate (key 11). Insert the cap screw (key 14) throughthe actuator spacer (key 13) and place this assemblythrough the diaphragm/diaphragm plate assembly.
2. Place the washer (key 15) over the center hole ofthe diaphragm, so that the convex part of the washeris facing down toward the diaphragm.
3. Screw the actuator rod (key 22) onto the capscrew (key 14) and torque to 65.5 N�m (48.3 lbf�ft).Install the actuator stem/diaphragm assembly backinto the actuator yoke (key 8).
4. Place the actuator springs (key 12) onto thespring locators in the diaphragm plate (key 11).
� For 6-inch size 1200 actuators, place theactuator springs (keys 12 and 13) onto the springlocators in the diaphragm plate (key 11). Note thateight large springs (key 13) should be used with oneinstalled at the center of the diaphragm plate and
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seven installed radially around the diaphragm plate(key 11). Seven small springs (key 12) should beinstalled inside the large springs (key 13) which arelocated radially around the diaphragm plate. There isno small spring at the center of the diaphragm plate(key 11).
5. Install the upper diaphragm casing (key 9) so thatthe ribs on the top of the upper diaphragm casingare perpendicular with the yoke legs.
6. Apply anti-seize lubricant to the threads.
� For size 225 and 750 actuators, install the 2long cap screws (key 16) and hex nuts (key 18) 180degrees apart from each other and in line with theactuator yoke legs.
� For size 1200 actuators, install the 4 long capscrews (key 16) and hex nuts (key 18) 90 degreesfrom each other, with two of them in line with theactuator yoke legs.
7. Tighten the long cap screws (key 16) and hexnuts (key 18), alternating between them to graduallycompress the springs, until the two casing halvesand diaphragm touch.
8. Apply anti-seize lubricant to the threads andinstall the remaining short cap screws (key 17) andhex nuts (key 18) to the casing.
9. Tighten the actuator casing cap screws evenlyusing a cross-tightening procedure. Torque to 55N�m (40 lbf�ft).
10. If you had previously removed the actuatorassembly from the valve, place the actuatorassembly back onto the valve body (key 1). Installthe four body nuts (key 7), but tighten them onlyfinger-tight.
11. Connect a separate air supply to the actuator airsupply connection (as shown on the yoke in figure15 or 16) and apply sufficient air pressure to raisethe actuator rod (key 22) to the travel stop.
Note: If converting from air-to-close toair-to-open action, first move the vent cap (key21) from the air supply connection on the yokeleg (see figure 17 or 18) to the top of the casing(see figure 15 or 16).
12. With the valve plug/stem (key 3) on the seat,thread the stem adjustor nut (key 27) up until it is therated travel distance specified in table 2 from theactuator rod (key 22). Thread the locknut (key 28) upagainst the stem locknut and tighten.
13. Stroke the actuator rod until it contacts the stemadjuster nut (key 27) and install the stem connectorhalves and travel indicator (keys 23, 24, and 26) withthe cap screws (key 25). Install the stem connectorhalves in the proper orientation so that when lookingat the inside of the stem connector halves, the flatsare down and the beveled surfaces are up.
14. Align the pointer of the travel indicator (key 26)with the appropriate mark on the travel scale.
15. Tighten the stem connector cap screws (key25) to 24 N�m (18 lbf�ft).
16. For standard bonnet constructions (figures15, 16, 17, and 18), tighten the body nuts (key 7)evenly using a cross-tightening procedure. See table3 for torque requirements.For extension and bellows bonnet constructions(figures 19, and 20), tighten the bonnet nuts (key46) evenly using a cross-tightening procedure. Seetable 4 for torque requirements.
17. Release the actuator pressure.
18. Note: For air-to-open action, the air supplytubing must be connected to the actuator yokeat the air supply connection, see figure 15 or 16.(If converting from air-to-close to air-to-open, thetubing will need to be re-routed to this location).
Actuator Assembly For Air-to-CloseConstructions (or to Change Action toAir-to-Close - see figure 17 or 18)1. Position the upper diaphragm casing (key 9)upside down on the bench so that it lays flat and notoff balance.
Note: If converting from air-to-open toair-to-close action, first move the vent cap (key21) from the top of the casing (see figure 15 or16) and thread into the air supply connection onthe yoke leg (see figure 17 or 18).
2. Install the diaphragm (key 10) on the diaphragmplate (key 11). Place the washer (key 15) over thecenter hole of the diaphragm, so that the convex partof the washer is facing down toward the diaphragm.
3. Insert the cap screw (key 14) through the washerand diaphragm, install the actuator spacer (key 13),and screw the actuator rod (key 22) onto the capscrew (key 14) finger-tight.
4. Radially align the spring locators in thediaphragm plate assembly (key 11) with the casingcap screw holes in the diaphragm (key 10). This willensure that the springs do not cover the air path inthe yoke.
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5. Torque the cap screw (key 14) to the actuator rod(key 22) to 65.5 N�m (48.3 lbf�ft) and lay thisassembly into the upper diaphragm casing (key 9).
6. Place the actuator springs (key 12) onto thespring locators in the diaphragm plate (key 11).
� For 6-inch size 1200 actuators, place theactuator springs (keys 12 and 13) onto the springlocators in the diaphragm plate (key 11). Note thateight large springs (key 13) should be used with oneinstalled at the center of the diaphragm plate andseven installed radially around the diaphragm plate(key 11). Seven small springs (key 12) should beinstalled inside the large springs (key 13) which arelocated radially around the diaphragm plate. There isno small spring at the center of the diaphragm plate(key 11).
7. Remove and replace the actuator rod bushing(key 19) and actuator rod seal (key 20) in theactuator yoke (key 8), if necessary.
8. Set the actuator yoke (key 8) down onto theassembly that is resting in the upper diaphragmcasing (key 9) so that the yoke legs areperpendicular with the ribs on the top of the upperdiaphragm casing (key 9).
9. Apply anti-seize lubricant to the threads.
� For size 225 and 750 actuators, install the 2long cap screws (key 16) and hex nuts (key 18) 180degrees apart from each other and in line with theactuator yoke legs.
� For size 1200 actuators, install the 4 long capscrews (key 16) and hex nuts (key 18) 90 degreesfrom each other, with two of them in line with theactuator yoke legs.
10. Tighten the long cap screws (key 16) and hexnuts (key 18), alternating between them to graduallycompress the springs, until the two casing halvesand diaphragm touch.
11. Apply anti-seize lubricant to the threads andinstall the remaining short cap screws (key 17) andhex nuts (key 18) to the casing.
12. Tighten the actuator casing cap screws evenlyusing a cross-tightening procedure. Torque to 55N�m (40 lbf�ft).
13. If you had previously removed the actuatorassembly from the valve, place the actuatorassembly back onto the valve body (key 1). Forstandard bonnet constructions (figures 15, 16,
17, and 18), install the body nuts (key 7) and tightenevenly using a cross-tightening procedure. See table 3 for torque requirements.For extension and bellows bonnet constructions(figures 19 and 20), install the bonnet nuts (key 46)and tighten evenly using a cross-tighteningprocedure. See table 4 for torque requirements.
14. With the valve plug/stem (key 3) in the closedposition (on the seat), thread the stem adjustor nut(key 27) up until it is at the rated travel (see table 2)from the actuator rod (key 22). Thread the locknut(key 28) up against the stem locknut and tighten.
15. Stroke the actuator rod until it contacts the stemadjuster nut (key 27) and install the stem connectorhalves and travel indicator (keys 23, 24, and 26) withthe cap screws (key 25). Install the stem connectorhalves in the proper orientation so that when lookingat the inside of the stem connector halves, the flatsare down and the beveled surfaces are up.
16. Align the pointer of the travel indicator (key 26)with the appropriate mark on the travel scale.
17. Tighten the stem connector cap screws (key 25) to 24 N�m (18 lbf�ft).
18. Note: For air-to-close action, the air supplytubing must be connected to the actuator uppercasing at the air supply connection, see figure 17 or 18. (If converting from air-to-open toair-to-close, the tubing will need to be re-routedto this location).
FIELDVUE� DVC2000 Digital ValveController Mounting
This section provides instruction on mounting theFIELDVUE DVC2000 Series digital valve controllerto the Design GX control valve. For further detail onthe operation and maintenance of the DVC2000positioner, refer to the DVC2000 instruction manual.
The FIELDVUE DVC2000 Series digital valvecontroller mounts directly to an interface pad on theGX actuator yoke leg, eliminating the need formounting brackets (see figure 1). Internalpassageways in the actuator route the pneumaticoutput to the actuator casing, which eliminates theneed for external air supply tubing in the air-to-open(spring-to-close) constructions. (The GX will alsoaccommodate other valve positioners, using theNAMUR mounting pads on the side of the yokelegs.)
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POLE PIECES
M8 MOUNTING BOLTS
A: EXTERNAL PNEUMATICOUTPUT PORT (1/4-INCHNPT OR G1/4 PLUG)
B: INTEGRAL MOUNTINGPNEUMATIC OUTPUTPORT (R1/8 PLUG)
FOR AIR-TO-OPEN, INSTALL THE O-RING BEFOREMOUNTING TO THE GX ACTUATOR
Figure 3. DVC2000 Digital Valve Controller Mounting Details
The DVC2000 features linkage-less positionfeedback when mounted to the GX control valve.There are no touching parts between the controllerand the valve stem, which simplifies controllerinstallation. If maintenance is required, the DVC2000can be easily removed from the valve.
In the air-to-open (spring-to-close) configuration, theair signal to the actuator casing is supplied throughthe air supply connection on the GX actuator yokeleg (see figure 15 or 16). In the air-to-close(spring-to-open) configuration, the air signal issupplied to the actuator through the air supplyconnection on the top of the actuator casing (seefigure 17 or 18).
For an air-to-open construction, a positioner willmount to the actuator (figure 15 or 16). The air signalis transmitted to the lower casing through thepneumatic passageway marked “air supplyconnection” in figure 15 or 16.
For an air-to-close construction, DN 15 throughDN 100 (0.5 through 4-inch) size only: in theactuator design (figure 17 or 18), the pneumaticsignal is connected directly to the air supplyconnection in the upper actuator casing. The yoke issymmetrical and the air passageways serve as avent, whereby the DVC2000 positioner can be easilymoved from one side of the valve to the otherwithout rotating the actuator.
DVC2000 Mounting ProceduresSteps A and B of the following instructions apply tothe actuator construction shown in figures 15, 16,17, and 18.
A. Mounting the DVC2000 to an air-to-open GXactuator (spring-to-close) (see figure 3 andfigure 15 or 16):
1. Attach the magnetic feedback array (suppliedwith the DVC2000) to the valve stem connectorusing the alignment template (supplied with themounting kit) for accurate alignment.
2. Remove the plug (R1/8) from the back of theDVC2000 housing (Port B in figure 3). Thispneumatic output port on the DVC2000 lines up withthe integral GX actuator air supply connection (seefigure 15 or 16).
3. Install the plug (either G1/4 or 1/4 inch NPT,included in the mounting kit) to the external outputpneumatic port (Port A in figure 3).
4. Remove the digital valve controller’s cover.
5. Using a 6mm hex wrench, attach the digital valvecontroller to the GX actuator mounting pad on theside that has the open pneumatic port. Be sure toplace the O-ring between the digital valvecontroller’s pneumatic output and the actuatormounting pad (Port B, as shown in figure 3).
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Pneumatic tubing is not required because the airpassages are internal to the actuator.
6. Check for clearance between the magnetassembly and the DVC2000 feedback slot. Themagnet assembly should be positioned such that theindex mark in the feedback slot of the DVC2000housing is between the valid range on the magnetassembly throughout the range of travel. (See figure 3).
B. For air-to-close GX actuator (spring-to-open)(see figure 3 and figure 17 or 18):
1. Attach the magnetic feedback array (suppliedwith the DVC2000) to the valve stem connectorusing the alignment template (supplied with themounting kit) for accurate alignment.
2. In the air-to-close configuration it is required thatan R1/8 plug be installed into the integral mountpneumatic port on the back of the DVC2000 housing(Port B of figure 3).
3. Remove the digital valve controller’s cover.
4. Using a 6mm hex wrench, attach the digital valvecontroller to the GX actuator mounting pad.
Note
The O-ring and G1/4 or 1/4 inch NPTplugs (supplied in the mounting kit)are not used with this actuatorconstruction.
5. Check for clearance between the magnetassembly and the DVC2000 feedback slot. Themagnet assembly should be positioned such that theindex mark on the pole pieces (back of the controllerhousing) is between the marks on the magnetassembly throughout the range of travel. (See figure 3.)
6. Install tubing between the external pneumaticoutput connection of the DVC2000 (Port A of figure 3) to the air supply connection (see figure 17or 18) on top of the actuator casing.
When changing actuator action:
When field converting a GX actuator fromair-to-open to air-to-close closed (or vice-versa), youwill need to change the plugs for the pneumaticpassages in the DVC2000 housing.
� To convert from air-to-close to air-to-open(spring-to-close), remove the R1/8 pneumatic plugon the back of the DVC2000 housing and install anO-ring (Port B of figure 3). Plug the externalpneumatic output with a 1/4 inch NPT or G1/4 plug(depending on the housing version). (Port A of figure 3.)
� To convert from air-to-open to air-to-close(spring-to-open), remove the external pneumaticplug (1/4 inch NPT or G1/4 plug, depending on thehousing version from Port A of figure 3). Install anR1/8 plug on the back of the DVC2000 housing (PortB of figure 3). Install tubing between the pneumaticoutput connection of the DVC2000 (Port A) to the airsupply connection on top of the actuator casing (seefigure 17 or 18).
Packing AdjustmentFor spring-loaded single PTFE V-ring packing (figure 12) or for Graphite ULF packing (figure 13),the Belleville spring pack (key 34) maintains asealing force on the packing. If leakage is detectedaround the packing follower (key 29) check to besure that the packing follower (key 29) is tight. Usinga wrench, tighten the packing follower (key 29) in 1/4turn intervals until the leakage is stopped. If leakagecannot be stopped in this manner, proceed to theReplacing Packing section in this manual.
Replacing PackingThis section provides instruction on replacingpacking in standard bonnets, extension bonnets, andbellows extension bonnets.
Isolate the control valve from the line pressure,release pressure from both sides of the valve bodyand drain the process media from both sides of thevalve. Shut off all pressure lines to the actuator andrelease all pressure from the actuator. Use lock-outprocedures to ensure that the above measures stayin effect while you work on the equipment.
1. For air-to-open constructions:
a. Connect a separate air supply to the lowerdiaphragm casing via the air supply connectionon the yoke (as shown in figure 15 or 16) andapply sufficient air pressure to raise the valveplug/stem off the seat to mid travel.
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b. Remove the stem connector nut half (key 23),stem connector bolt half (key 24), and travelindicator (key 26).
c. Push the valve plug stem (key 3) down until itcontacts the seat.
d. Loosen the locknut (key 28) and thread thestem adjustor nut (key 27) down until it clears thetop of the valve plug stem (key 3).
e. Shut off the air pressure and disconnect theseparate air supply to the lower diaphragmcasing (as shown in figure 15 or 16).
2. For air-to-close constructions, as shown infigure 17 or 18, remove the stem connector nut half(key 23), stem connector bolt half (key 24), andtravel indicator (key 26).
WARNING
To avoid personal injury or propertydamage by uncontrolled movement ofthe actuator yoke (key 8), loosen thebody/yoke nuts (figures 15, 16, 17, and18, key 7) or bonnet/yoke nuts (figures19 and 20, key 46) by following theinstructions in the next step. Do notremove a stuck actuator yoke bypulling on it with equipment that canstretch or store energy in any othermanner. The sudden release of storedenergy can cause uncontrolledmovement of the actuator yoke.
Note
The following step also providesadditional assurance that the valvebody fluid pressure has been relieved.
3. For standard bonnet constructions (figures15, 16, 17, and 18), body nuts (key 7) attach theactuator yoke (key 8) to the valve body (key 1).Loosen these nuts approximately 3mm (1/8 inch).
For extension and bellows bonnet constructions,bonnet nuts (key 46) attach the actuator yoke (key 8)to the extension bonnet (key 39). Loosen these nutsapproximately 3mm (1/8 inch).
4. Then loosen the valve-to-yoke gasketed joint byeither rocking the actuator yoke or prying betweenthe valve and actuator yoke. Work the prying toolaround the actuator yoke until it loosens.
WARNING
If there is evidence of process fluidunder pressure leaking from the joint,retighten the valve body/joint nuts andreturn to the Warning at the beginningof the Maintenance section to ensureproper steps have been taken toisolate the valve and relieve processpressure.
5. If no fluid leaks from the joint, loosen the packingfollower (key 29) two turns to relieve the packingcompression load.
6. For standard bonnet constructions (figures15, 16, 17, and 18), remove the body nuts (key 7)completely.For extension and bellows bonnet constructions(figures 19 and 20), remove the bonnet nuts (key 46) completely.
CAUTION
To avoid property damage, place theactuator yoke on a protective surface,as described in the followingprocedure.
7. Carefully lift off the actuator yoke and set it on aprotective surface to prevent damage.For standard bonnet constructions, if the bonnet(key 4) together with the valve stem plug assemblyhas a tendency to lift with the actuator yoke, ensureit does not drop from the actuator.For extension and bellows constructions, ensurethe bonnet (key 4) does not lift with the actuatoryoke.For DN150 balanced constructions, if the bonnet,guide sleeve, or valve stem assembly have atendency to lift with the actuator yoke, ensure theydo not drop from the actuator.
CAUTION
For extension and bellows bonnetconstructions, lifting the bonnet with
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the actuator yoke may cause possibledamage to the valve plug and to thebellows.
9. For standard bonnet constructions, removethe bonnet and the valve plug/stem assembly andset on a protective surface.For extension and bellows bonnet constructions,remove only the bonnet (key 4).For DN150 balanced constructions, remove theguide sleeve, bonnet, and valve plug stemassembly.
10. Remove the valve/yoke gasket (figures 15, 16, 17, and 18 key 5, figures 19 and 20key 47) and cover the opening of the valve to protectthe gasket surface and prevent foreign matter fromgetting into the valve cavity.
11. Remove the packing follower (key 29) from thebonnet (key 4).
12. Remove the Belleville spring pack (key 34) andpacking spacer (key 30) from the bonnet (key 4).Carefully push out the remaining packing box partsfrom the bonnet (key 4) using a rounded rod or othertool which will not scratch the packing box wall.Clean the packing box and the metal packing boxparts.
CAUTION
Inspect the valve stem, threads andpacking box surfaces for any sharpedges that might cut the packing.Scratches or burrs could causepacking box leakage or damage thenew packing.
13. Inspect the valve stem, threads and packing boxsurfaces for any sharp edges that might cut thepacking. Scratches or burrs could cause packing boxleakage or damage the new packing. If the surfacecondition cannot be improved by light sanding,replace the damaged parts.
14. Remove the covering protecting the valve cavityand install a new valve/yoke gasket (figures 15, 16, 17, and 18 key 5, figures 19 and 20key 47) making sure that the gasket seating surfacesare clean and smooth.For DN150 balanced constructions, two gasketsare required; one between the valve body and guide
sleeve, and the other between the guide sleeve andbonnet. Ensure the gasket seating surfaces areclean and smooth for both gaskets.
15. Carefully install the bonnet (key 4) onto thevalve stem.
16. Install the new packing and the metal packingbox parts according to figure 12 for PTFE packingand according to figure 13 for Graphite ULF packing.Place a smooth-edged pipe over the valve stem andgently tap each soft packing part into the packingbox. Apply anti-seize lubricant to the threads andinstall the packing follower (key 29).
17. Install the locknut (key 28) and stem adjustornut (key 27).For standard bonnet constructions, install thevalve plug/bonnet sub assembly into the valve body(key 1).
18. Mount the actuator onto the valve and install thebody nuts (figures 15, 16, 17, 18 key 7, figures 19and 20 key 46), but tighten them only finger-tight.
19. For air-to-open, connect a separate air supplyto the lower diaphragm casing air supply connection(as shown in figure 15 or 16) and apply sufficient airpressure to raise the actuator rod (key 22) to thetravel stop. Proceed to the next step.For air-to-close, proceed to the next step.
20. For standard bonnet constructions, tightenthe body nuts (key 7) evenly using a cross-tighteningprocedure. See table 3 for torque requirements.For extension and bellows bonnet constructions,tighten the bonnet nuts (key 46) evenly using across-tightening procedure. See table 4 for torquerequirements.
21. Tighten the packing follower (key 29) to thetorque specified in table 6.
Alternately, the packing follower can be tightened bythe following method:
a. Tighten the packing follower until the Bellevillesprings are compressed 100% (or completelyflat), as detected by a rapid increase in nuttorque.
b. For DN 15 through DN 100 (1/2 through4-inch), loosen the packing follower 60� ofrotation.For DN 150 (6-inch), loosen the packing follower180� of rotation.
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GE02918-5
A A
G
B
B
H
D F
E
C C
C
D F
E
SIZE DN15, 20, 25(0.5, 0.75, 1-INCH)
SIZE DN40, 50, 80, 100(1.5, 2, 3, 4-INCH)
A
B
C
C
D
E
F
J
SIZE DN150(6-Inch)
Figure 4. Seat Ring Removal and Installation Tool
Table 5. Seat Ring Removal and Installation Tool Dimensions
22. Thread the stem lock adjustor (key 27) up until itis the rated travel distance specified in table 2 fromthe actuator rod (key 22). Thread the locknut (key 28) up against the stem locknut and tighten.
23. Stroke the actuator rod until it contacts the stemadjuster nut (key 27) and install the stem connectorhalves and travel indicator (keys 23, 24, and 26) withthe cap screws (key 25). Install the stem connector
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halves in the proper orientation so that when lookingat the inside of the stem connector halves, the flatsare down and the beveled surfaces are up.
24. Align the pointer of the travel indicator (key 26)with the appropriate mark on the travel scale.
25. Tighten the stem connector cap screws (key 25)to 24 N•m (18 lbf•ft).
26. For air-to-open, release the actuator pressure.
27. For air-to-open, ensure the vent (key 21) isinstalled into the upper diaphragm casing (see figure 15 or 16). For air-to-close, ensure the vent (key 21) isinstalled into the actuator yoke air supply connection(see figure 17 or 18).
Valve Trim MaintenanceKey numbers in this section refer to figures 15, 16,17, 18, 19, and 20.
Valve Trim Disassembly1. Remove the actuator and bonnet assembly asdescribed in the Replacing Packing section (steps 1through 10).
� For standard bonnet constructions (figures 15, 16, 17, and 18), proceed to the SeatRing Removal section.
� For extension bonnet constructions (figure 19), proceed to step 3.
� For bellows bonnet constructions (figure 20), proceed to step 2.
2. For bellows bonnet constructions (figure 20),use a bellows nut tool made according to thedimensions in figure 21 and table 10 to remove thebellows nut (key 51) as follows:
a. Insert the bellows nut tool into the extensionbonnet (key 39). Be certain the tool lugs areengaged in the corresponding recesses in thebellows nut.
b. Use a torque gun or driver having sufficienttorque capabilities according to table 9. Connectthe gun to a socket that snugly fits the hex headon the bellows nut tool.
Table 7. Seat Ring Torque RequirementsVALVE SIZE TORQUE
c. Insert the socket onto the hex head of thebellows nut tool.
WARNING
Be careful to hold the torque gun,attached socket, and tool at rightangles to the bellows nut whenapplying torque. Tilting the gun andsocket while applying torque maycause the lugs on the bellows nut toolto suddenly disengage from the lugson the bellows nut thus causingpossible damage to the bellows nutand possible personal injury.
d. Remove the bellows nut (key 51).
3. For both extension and bellows bonnetconstructions: Body nuts (key 7) attach theextension bonnet (key 39) to the valve body (key 1).Loosen these nuts approximately 3mm (1/8 inch).Then loosen the extension bonnet-to-body gasketedjoint by either rocking the extension bonnet or pryingbetween the body and extension bonnet. Work theprying tool around the extension bonnet until itloosens.
4. Remove the body nuts (key 7) completely andcarefully lift the extension bonnet (key 39), and valveplug/stem extension assembly (key 3, 40 and 48) orplug/bellows/stem extension assembly (key 3, 49and 48) from the top of the valve body.
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5. Use a wrench to unscrew the plug/stem assembly(key 3) from the stem extension (key 40) or frombellows/stem assembly (key 49) as follows:
a. Insert the wrench onto the stem extension hexflats (see figures 19 and 20).
CAUTION
In the following procedure, takeprecautions to ensure the valve plugand stem finish are not damaged.
b. Clamp the plug/stem assembly (key 3) andholding it stable, unscrew the stem extension(key 40) or bellows/stem assembly (key 49). Takeprecautions to ensure the valve plug and stemfinish are not damaged.
Note: There is a stem assembly locking insert(figures 19 and 20, key 48) in the valve plug/stemextension assembly. It is possible this insertmay drop out during stem disassembly. If this isthe case, ensure it is retained for reassembly ofthe valve stem to the stem extension.
6. Remove the plug/stem assembly (key 3) andbellows/stem assembly (key 49) from the extensionbonnet. Remove the bellows gasket (key 50).
7. Proceed to the Seat Ring Removal section.
Seat Ring Removal
CAUTION
Use care to avoid damaging the gasketsealing surfaces.
The surface finish of the valve stem(key 3) is critical for making a goodpacking seal. The seating surfaces ofthe seat ring (key 2) and the valve plug(key 3) are critical for tight shutoff andshould therefore also be treated withcare and properly protected.
1. Packing parts can be removed from the bonnet ifdesired. Replace these parts as described in thesection on Packing Maintenance.
2. Use a seat ring tool made according to thedimensions in figure 4 and table 5 to remove theseat ring (key 2) as follows:
a. Insert the tool into the valve body. Be certainthe tool lugs are engaged in the correspondingrecesses in the seat ring.
b. Use a torque gun or driver having sufficienttorque capabilities according to table 7. Connectthe gun to a socket that snugly fits the hex headon the seat ring tool.
c. Insert the socket onto the hex head of the seatring tool.
WARNING
Be careful to hold the torque gun,attached socket, and tool at rightangles to the seat ring when applyingtorque. Tilting the gun and socketwhile applying torque may cause thelugs on the seat ring tool to suddenlydisengage from the lugs on the seatring thus causing possible damage tothe seat ring and possible personalinjury.
3. Remove the seat ring (key 2) from the valvebody.
4. Inspect parts for wear or damage that wouldprevent proper operation of the valve body.
5. Replace trim parts as necessary.
Valve Trim AssemblyAssembly of Unbalanced Trim
Refer to figures 9, 15, 16, 17, 18, 19, and 20.
1. Before installing the new seat ring, thoroughlyclean the threads in the valve body port. Applysuitable lubricant to the threads and to the 60°surface of the new seat ring (key 4). Screw the seatring into the valve body. Using the seat ring tool,tighten the seat ring and torque according to thevalues in table 7. Remove all excess lubricant aftertightening.
2. For standard bonnet constructions, performthe following. (Proceed to step 3 for extensionand bellows bonnets.)
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a. Clean the body/yoke gasket seating surfacesand install a new body/yoke gasket (key 5).
b. Remove any protective tape or covering fromthe valve plug/stem assembly.
c. Insert the valve plug/stem assembly into theseat ring.
CAUTION
If the packing is to be reused and wasnot removed from the bonnet, performthe following step carefully to avoiddamaging the packing with the stemthreads.
d. Install bonnet, and actuator yoke onto thevalve body by completing the assembly accordingto steps 15 to 27 of the section ReplacingPacking, omitting step 16 if new packing is notbeing installed.
3. For extension and bellows bonnetconstructions, perform the following.
a. For bellows bonnet constructions, cleanthe extension bonnet/bellows gasket seatingsurfaces and install a new bellows gasket (key 50).
b. Remove any protective tape or covering fromthe valve plug/stem assembly (key 3). Then insertthe plug/stem assembly (key 3) through theextension bonnet bushing (key 41).
c. Remove any protective tape or covering fromthe stem extension (key 40) or the bellows stemassembly (key 49). Screw the plug/stemassembly (key 3) into the stem extension orbellows/stem assembly. Note: Do not applylubricant to the threads of the plug/stemassembly (key 3) or the bellows/stemassembly (key 49).
Note: Ensure the stem assembly locking insert(figures 19 and 20, key 48) has been first insertedin the bottom of the threaded hole in the stemextension.
CAUTION
In the following procedure, takeprecautions to ensure the valve plugand stem finish are not damaged.
d. Clamp the plug/stem assembly (key 3) andhold it stable. Using a box spanner tool tightenthe plug/stem assembly (key 3) into the stemextension (key 40) or into the bellows/stemassembly (key 49) according to the stemextension torque requirements listed in table 8.Take precautions to ensure the valve plug andstem finish are not damaged.
e. For bellows bonnet constructions, applysuitable lubricant to the threads and to the bottomsurface of the bellows nut (key 51). Screw thebellows nut into the extension bonnet. Using thebellows nut tool, a lathe or boring mill, tighten thebellows nut or torque according to the values intable 9. Remove all excess lubricant.
f. Clean the body/extension bonnet seatinggasket surface and install the gasket (key 5).
g. Install the extension bonnet and plug/stemassembly onto the valve body. Install thebody/yoke nuts (key 7) and tighten evenly using across-tightening procedure. See table 3 for torquerequirements.
CAUTION
If the packing is to be reused and wasnot removed from the bonnet, performthe following step carefully to avoiddamaging the packing with the stemthreads.
h. Install the bonnet and actuator yoke onto theextension bonnet by completing the assemblyaccording to steps 15 to 27 of the sectionReplacing Packing, omitting step 16 if newpacking is not being installed.
Assembly of Balanced Trim
(Available in sizes DN 80, 100, and 150 [3-, 4-, and6-inch] only)
Refer to figure 7.
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CAUTION
To protect the valve plug seal ring (key37) and to ensure it seals properly, becareful not to scratch the surfaces of thering groove in the valve plug or any ofthe surfaces of the replacement ring.
1. With the valve plug (key 3) removed according tothe Disassembly portion of the Valve TrimMaintenance procedure, proceed as appropriate:
The seal ring (key 37) cannot be reused because itis a closed ring which must be pried and/or cut fromthe groove. Once the seal ring is removed, theelastomeric backup ring (key 38), which is also aclosed ring, can be pried from the groove.
To install a new backup ring and seal ring onto thevalve plug, apply a general purpose silicone-baselubricant to both rings (keys 38 and 37). Place thebackup ring over the valve plug (key 3) and into thegroove. Place the seal ring over the top edge of thevalve plug (key 3) so that it enters the groove on oneside of the valve plug. Slowly and gently stretch theseal ring and work it over the top edge of the valveplug. The PTFE material in the seal ring must bepermitted time to cold-flow during the stretchingprocedure, so avoid jerking sharply on this ring.Stretching the seal ring over the valve plug maymake it seem unduly loose when in the groove, but itwill contract to its original size after insertion into thebonnet.
2. Install the seat ring, valve plug/stem, bonnet andactuator yoke into the valve body by completing theassembly according to steps 1 to 3 of the sectionAssembly of Unbalanced Trim.
Repair NameplateIf required by the end-user, an optional repairnameplate is available for recording changes madeto the valve trim during maintenance (see figure 23).This nameplate can be ordered as a spare part, andis easily mounted to the actuator casing using acasing bolt. (Reference the Parts Ordering section ofthis manual.)
As shown in figure 23, the repair nameplate provideslocations for maintenance personnel to record trimdata, such as:
� Date of maintenance
� Trim material
� Port diameter
� Flow capacity (Cv / Kv)
� Flow characteristic
Bellows MaintenanceThis section provides instruction on the replacementof the bellows / stem assembly (see key 49 in figure 20).
1. Remove the actuator, bonnet assembly asdescribed in the Replacing Packing section (steps 1through 10).
2. Remove the plug/stem assemblies as describedin the Valve Trim Disassembly section (steps 2through 6).
3. To install the new bellows / stem assembly (key 49), perform the Valve Trim Assembly (step 3).
GX Valve and ActuatorInstruction ManualForm 5770June 2006
Figure 6. Design GX Handwheel Orientation and Grease Zerk Location
Handwheel Operation
Principle of OperationThe Design GX handwheel is designed to compressthe actuator springs and override the actuator failaction. Turning the handwheel drives the screw, nut,
and levers. The levers push against the stemconnector to transfer this motion. Reversing thedirection of the handwheel will move the nut andlevers in the opposite direction. Once the levers areno longer in contact with the stem connector, thelocking screw should be used to secure thehandwheel against undesired movement. To prevent
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damage due to overtravel, the handwheel should notbe turned more than 2 full turns past the point atwhich the levers no longer contact the stemconnector.
WARNING
To avoid personal injury or loss ofprocess control due to equipmentdamage, ensure the levers arecompletely disengaged and thelocking screw is tight while the valve isin normal pneumatic operation.
During normal pneumatic operation when thehandwheel is not needed, a locking screw (seefigure 5) is provided on the side of the handwheelhousing to lock the handwheel levers out of the way.
WARNING
To avoid personal injury or equipmentdamage due to possible suddenshifting or falling of the valveassembly, do not lift the valveassembly by the handwheel.
Design GX Handwheel Installation1. Note the orientation of the levers to the stemconnector for either the air-to-close, spring-to-openconfiguration or for the air-to-open, spring-to-closeconfiguration, as shown in figure 6.
2. Adjust the handwheel to allow positioning thelevers above the stem connector before installation.
3. Install the handwheel to the GX mounting padwith four studs and nuts, as shown in figure 5.Torque to 24 N�m (18 lbf�ft).
4. Apply lithium grease to the grease zerk and to thetip of the levers (where they contact the stemconnector), as shown in figure 6.
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GE07161-D
APPLY LUBRICANT
Figure 7. Design GX Balanced Trim(Standard for Sizes DN 80 and 100 [3- and 4-Inch])
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GE11233
DATE OF MAINTENANCE
PORT DIAMETER
TRIM MATERIAL
FLOWCHARACTERISTIC
FLOW CAPACITY
Figure 23. Repair Nameplate (Spaces Provided for Recording Trim Maintenance Data)
Parts OrderingEach valve is assigned a serial number which canbe found on the valve or on the nameplate (figure 2and key 35, not shown). The nameplate will normallybe fitted to the actuator. Refer to this serial numberwhen contacting your Emerson ProcessManagement sales office for technical assistance.When ordering replacement parts refer to this serialnumber and give the part description from thefollowing parts list.
Note
Use only genuine Fisher replacementparts. Components that are notsupplied by Emerson Process
Management should not, under anycircumstances, be used in any Fishervalve, because they will void yourwarranty, might adversely affect theperformance of the valve, and mightjeopardize worker and workplacesafety.
Note
Neither Emerson, Emerson ProcessManagement, Fisher, nor any of theiraffiliated entities assumesresponsibility for the selection, useand maintenance of any product.Responsibility for the selection, use,and maintenance of any productremains with the purchaser andend-user.
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Parts Kits
PACKINGKITS
Valve SizeStem Diameter
DN 25, 40, and 50(1, 1.5, and 2-Inch)
10 mm
DN 80 and 100 (3- and 4-Inch)
14 mm
DN 150(6-Inch)19 mm
PTFE packing (Contains keys 32 and 33) RGXPACKX012 RGXPACKX022 RGXPACKX072
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Fisher Marshalltown, Iowa 50158 USACernay 68700 France Sao Paulo 05424 BrazilSingapore 128461
Emerson Process Management
www.Fisher.com
The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they arenot to be construed as warranties or guarantees, express or implied, regarding the products or services described herein or their use or applicability.We reserve the right to modify or improve the designs or specifications of such products at any time without notice.
Neither Emerson, Emerson Process Management, Fisher, nor any of their affiliated entities assumes responsibility for the selection, use and maintenance of any product. Responsibility for the selection, use and maintenance of any product remains with the purchaser and end-user.
�Fisher Controls International LLC 2003, 2006; All Rights Reserved Printed in USA
FIELDVUE, Whisper Trim, and Fisher are marks owned by Fisher Controls International LLC, a member of the Emerson Process Managementbusiness division of Emerson Electric Co. Emerson Process Management, Emerson, and the Emerson logo are trademarks and service marks ofEmerson Electric Co. All other marks are the property of their respective owners. This product may be covered by one or more of the followingpatents: 6,866,244; 6,827,001; and 6,789,784 or under pending patents.