Emerson Fisher GX Instruction Manual
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Emerson Fisher GX Instruction Manual

Valve and actuator
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Instruction Manual
D103175X012
February 2009
Fisherr GX
Control Valve and Actuator System
Contents
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Introduction

Scope of Manual

This instruction manual includes installation,
maintenance, and parts information for the Fisher
GX control valve and actuator system.
Do not install, operate or maintain a 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
Management sales office before proceeding.
www.Fisher.com
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GX Valve and Actuator
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34
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36
W8861
Figure 1. Fisher GX Control Valve, Actuator, and
FIELDVUE DVC2000 Series Digital Valve Controller

Description

The 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.
The 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 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.

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Summary of Contents for Emerson Fisher GX

  • Page 1: Table Of Contents

    ....... . W8861 Figure 1. Fisher GX Control Valve, Actuator, and FIELDVUE DVC2000 Series Digital Valve Controller...

  • Page 2: Specifications

    Instruction Manual GX Valve and Actuator February 2009 Table 1. Fisher GX Valve Specifications Specifications ASME Valve Body Size DN 15, 20, 25, 40, 50, 80, 100, 150 NPS 1/2, 3/4, 1, 1-1/2, 2, 3, 4, and 6 Pressure Rating PN 10 / 16 / 25 / 40 per EN 1092-1 CL150 / 300 per ASME B16.34...

  • Page 3: Maintenance

    Maintenance WARNING GE01296-99 WITH SPRING INFORMATION Avoid personal injury or property Figure 2. Fisher GX Nameplate Examples damage from sudden release of process pressure or bursting of parts. Before performing any maintenance avoid personal injury. Be especially operations: careful when removing the stem...

  • Page 4: Actuator Maintenance

    Emerson Process Management sales office. D The valve packing box may contain process fluids that are Note pressurized, even when the valve has been removed from the pipeline.
  • Page 5 Instruction Manual GX Valve and Actuator February 2009 springs are still under compression. 12) being under compression, remove The upper casing could suddenly the long cap screws (key 16) last. come loose and jump, due to the compressed energy of the springs. If The upper actuator casing may remain the upper casing is stuck to the fixed to the diaphragm and lower...
  • Page 6 Instruction Manual GX Valve and Actuator February 2009 GG00398-A Figure 3. Spring Configuration...
  • Page 7 S31603 2 bar (29 psi) 1. Only applicable to actuators with spring information on the nameplate (see figure 2). Actuator Assembly For Air-to-Open Table 3. Fisher GX Maximum Rated Travel Constructions (or to Change Action to TRAVEL NUMBER OF ACTUATOR SIZE...
  • Page 8 Instruction Manual GX Valve and Actuator February 2009 D For size 225 and 750 actuators, install the 2 Table 6. Stem Connector Torque Values long cap screws (key 16) and hex nuts (key 18) 180 TORQUE STEM PART degrees apart from each other and in line with the MATERIAL LbfSft actuator yoke legs.

  • Page 9: Fieldvuet Dvc2000 Digital Valve

    Instruction Manual GX Valve and Actuator February 2009 and screw the actuator rod (key 22) onto the cap 20, and 21), install the body nuts (key 7) and tighten screw (key 14) finger-tight. evenly using a cross-tightening procedure. See table 4 for torque requirements. 4.
  • Page 10 Instruction Manual GX Valve and Actuator February 2009 FOR AIR-TO-OPEN, INSTALL THE O-RING SEAL BEFORE MOUNTING TO THE GX ACTUATOR B: INTEGRAL MOUNTING PNEUMATIC OUTPUT PORT (R1/8 PLUG) POLE PIECES A: EXTERNAL PNEUMATIC OUTPUT PORT (1/4 NPT OR G1/4 PLUG) M8 MOUNTING BOLTS Figure 4.

  • Page 11: Packing Maintenance

    Instruction Manual GX Valve and Actuator February 2009 D To convert from air-to-close to air-to-open Pneumatic tubing is not required because the air passages are internal to the actuator. Also, install (spring-to-close), remove the R1/8 pneumatic plug the insulating gaskets around the mounting bolts. on the back of the DVC2000 housing and install an O-ring (Port B of figure 4).
  • Page 12 Instruction Manual GX Valve and Actuator February 2009 b. Remove the stem connector nut half (key 23), to the extension bonnet (key 39). Loosen these nuts stem connector bolt half (key 24), and travel approximately 3mm (1/8 inch). indicator (key 26). 4.
  • Page 13 Instruction Manual GX Valve and Actuator February 2009 DN25 Cav III DN15, 20, 25 DN40, 50, 80, 100 DN150 (NPS 1) (NPS 1/2, 3/4, 1) (NPS 1-1/2, 2, 3, 4) (NPS 6) GG01215 GE02918-6 Figure 5. Seat Ring Removal and Installation Tool Table 7.
  • Page 14 Instruction Manual GX Valve and Actuator February 2009 15. Carefully install the bonnet (key 4) onto the Table 8. Packing Follower Torque valve stem. Torque Torque Packing Packing Valve Size Style Style (lbfSft) (lbfSft) 16. Install the new packing and the metal packing DN15, 20, box parts according to figure 15 for PTFE packing 25, 40, and...

  • Page 15: Valve Trim Maintenance

    Instruction Manual GX Valve and Actuator February 2009 Valve Trim Disassembly Table 9. Seat Ring / Cage Torque Requirements VALVE SIZE TORQUE 1. Remove the actuator and bonnet assembly as lbfSft described in the Replacing Packing section (steps 1 15, 20, 25 1/2, 3/4, 1 through 10).
  • Page 16 Instruction Manual GX Valve and Actuator February 2009 prying tool around the extension bonnet until it tight shutoff and should therefore also loosens. be treated with care and properly protected. 4. Remove the body nuts (key 7) completely and 1. Packing parts can be removed from the bonnet if carefully lift the extension bonnet (key 39), and valve desired.
  • Page 17 Instruction Manual GX Valve and Actuator February 2009 ring into the valve body. Using the seat ring tool, Note: Ensure the stem assembly locking insert tighten the seat ring and torque according to the (figures 22 and 23, key 48) has been first inserted values in table 9.

  • Page 18: Bellows Maintenance

    Instruction Manual GX Valve and Actuator February 2009 Refer to figure 10. Repair Nameplate If required by the end-user, an optional repair nameplate is available for recording changes made CAUTION to the valve trim during maintenance (see figure 28). This nameplate can be ordered as a spare part, and is easily mounted to the actuator casing using a To protect the valve plug seal ring (key casing bolt.
  • Page 19 SCREW LOCKING SCREW STUD AND STUD AND NUT (4) NUT (4) GE11642-1 AIR-TO-CLOSE, SPRING-TO-OPEN AIR-TO-OPEN, SPRING-TO-CLOSE Figure 6. Fisher GX Handwheel Assembly GE05810-D GE05809-D APPLY LUBRICANT AIR-TO-OPEN, SPRING-TO-CLOSE AIR-TO-CLOSE, SPRING-TO-OPEN Figure 7. Fisher GX Handwheel Orientation and Grease Zerk Location...

  • Page 20: Handwheel Operation

    Instruction Manual GX Valve and Actuator February 2009 Handwheel Operation GX Handwheel Installation (for use with 20mm travel only) 1. Note the orientation of the levers to the stem CAUTION connector for either the air-to-close, spring-to-open configuration or for the air-to-open, spring-to-close configuration, as shown in figure 7.
  • Page 21 STUD AND CAP SCREW (2) NUT (4) NUT (4) UPSTOP DOWNSTOP Figure 8. Fisher GX Travel Stop Assembly GX Travel Stop Installation Upstop 1. Note the orientation of the lever to the stem Downstop connector for upstop positioning, as shown in 1.
  • Page 22 LEVERS BRACKET UPSTOP DOWNSTOP Figure 9. Fisher GX Travel Stop Orientation Setting the Travel Stop Position 2. Set the travel stop, screw the adjustable cap screws to assure the lever contacts with the stem After sending the required position air signal to the connector tightly, then tighten the back nut.
  • Page 23 February 2009 APPLY LUBRICANT GE03755_8 GE07161-D Figure 10. Fisher GX Balanced Trim Figure 12. Fisher GX Unbalanced Port-Guided Trim (Standard for DN 80 and 100 [NPS 3 and 4]) (DN 40 to 150 [NPS 1-1/2 to 6]) APPLY LUBRICANT APPLY LUBRICANT...
  • Page 24 Instruction Manual GX Valve and Actuator February 2009 W9023-1 Figure 14. Fisher GX Control Valve with Typical Soft Seat GE11961_C Trim Construction (Port Sizes of 36mm - 136mm) Figure 16. Fisher GX Graphite ULF Packing DN15 through DN100 (NPS 1/2 through 4)
  • Page 25 Instruction Manual GX Valve and Actuator February 2009 AIR SUPPLY CONNECTION GE02171-G Figure 18. Fisher GX Control Valve and Actuator System Assembly, Air-to-Open (Spring-to-Close) (DN25 (NPS 1) with Unbalanced Contoured Plug)
  • Page 26 Instruction Manual GX Valve and Actuator February 2009 AIR SUPPLY CONNECTION GE17517-E Figure 19. Fisher GX Control Valve and Actuator System Assembly, Air-to-Open (Spring-to-Close) (DN150 (NPS 6) with Unbalanced Contoured Plug)
  • Page 27 Instruction Manual GX Valve and Actuator February 2009 AIR SUPPLY CONNECTION GE03515-G Figure 20. Fisher GX Control Valve and Actuator System Assembly, Air-to-Close (Spring-to-Open) (DN25 (NPS 1) with Unbalanced Contoured Plug)
  • Page 28 Instruction Manual GX Valve and Actuator February 2009 AIR SUPPLY CONNECTION GE23239-C Figure 21. Fisher GX Control Valve and Actuator System Assembly, Air-to-Close (Spring-to-Open) (DN150 (NPS 6) with Unbalanced Contoured Plug)
  • Page 29 Instruction Manual GX Valve and Actuator February 2009 STEM EXTENSION HEX FLATS GF00337-D DO NOT APPLY LUBRICANT APPLY LUBRICANT Figure 22. Extension Bonnet with Graphite ULF Packing...
  • Page 30 Instruction Manual GX Valve and Actuator February 2009 STEM EXTENSION HEX FLATS GF00338-D Figure 23. Bellows Extension Bonnet with PTFE Packing...
  • Page 31 Instruction Manual GX Valve and Actuator February 2009 APPLY LUBRICANT GE23746-A Figure 24. Cryogenic Extension Bonnet APPLY LUBRICANT GG03061-2 Figure 25. Fisher Cavitrol III Trim, DN25 and DN50 (NPS 1 and NPS 2)
  • Page 32 Instruction Manual GX Valve and Actuator February 2009 C HEX C HEX 8 mm 6 mm DN80 and 100 DN15, 20, 25, 40, and 50 (NPS 3 and 4) (NPS 1/2, 3/4, 1, 1-1/2, and 2) GF00536_3 Figure 26. Bellows Nut Removal and Installation Tool Table 12.
  • Page 33 Instruction Manual GX Valve and Actuator February 2009 APPLY LUBRICANT GE05809_D Figure 27. Handwheel Assembly...

  • Page 34: Parts Ordering

    35, not shown). The nameplate will normally warranty, might adversely affect the be fitted to the actuator. Refer to this serial number performance of the valve, and could when contacting your Emerson Process cause personal injury and property Management sales office for technical assistance. damage.

  • Page 35: Parts Kits

    Instruction Manual GX Valve and Actuator February 2009 Parts Kits Valve Size DN 25, 40, and 50 DN 80 and 100 DN 150 (NPS 1, 1-1/2, and 2) (NPS 3 and 4) (NPS 6) PACKING Stem Diameter 10 mm 14 mm 19 mm KITS PTFE packing (Contains keys 32 and 33)

  • Page 36: Parts List

    Description Nameplate Warning Tag Seal Ring Note Backup Ring Extension Bonnet For part numbers not shown, contact your Emerson Stem Extension Process Management sales office. Extension Bonnet Lower Bushing Graphite ULF Packing Ring (2 req’d) Description Part Number Packing Ring (2 req’d) Valve Body Packing Washer (3 req’d)
  • Page 37 Instruction Manual GX Valve and Actuator February 2009 Key 3 Valve Plug/Stem and Key 2 Seat Ring (Plain Bonnet, LCC, WCC/1.0619 and CF3M/1.4409 Valve Body Material) VALVE PORT VALVE SEAT SEAT RING TRAVEL PLUG/STEM VALVE SIZE PLUG STEM TRIM STYLE PLUG RING PART...
  • Page 38 Instruction Manual GX Valve and Actuator February 2009 Key 3 Valve Plug/Stem and Key 2 Seat Ring (Plain Bonnet, LCC, WCC/1.0619 and CF3M/1.4409 Valve Body Material) VALVE PORT VALVE SEAT SEAT RING TRAVEL PLUG/STEM VALVE PLUG STEM SIZE PLUG RING TRIM STYLE PART PART...
  • Page 39 Instruction Manual GX Valve and Actuator February 2009 Key 3 Valve Plug/Stem and Key 2 Seat Ring (Plain Bonnet, LCC, WCC/1.0619 and CF3M/1.4409 Valve Body Material) VALVE PORT VALVE SEAT SEAT RING TRAVEL PLUG/STEM VALVE PLUG STEM SIZE PLUG RING TRIM STYLE PART PART...
  • Page 40 Instruction Manual GX Valve and Actuator February 2009 Key 3 Valve Plug/Stem and Key 2 Seat Ring (Plain Bonnet, LCC, WCC/1.0619 and CF3M/1.4409 Valve Body Material) VALVE PORT VALVE SEAT SEAT RING TRAVEL PLUG/STEM VALVE PLUG STEM SIZE PLUG RING TRIM STYLE PART PART...
  • Page 41 Instruction Manual GX Valve and Actuator February 2009 Key 3 Valve Plug/Stem and Key 2 Seat Ring (Plain Bonnet, LCC, WCC/1.0619 and CF3M/1.4409 Valve Body Material) VALVE PORT VALVE SEAT SEAT RING TRAVEL PLUG/STEM VALVE SIZE PLUG STEM TRIM STYLE PLUG RING PART...
  • Page 42 Instruction Manual GX Valve and Actuator February 2009 Key 3 Valve Plug/Stem and Key 2 Seat Ring (Plain Bonnet, LCC, WCC/1.0619 and CF3M/1.4409 Valve Body Material) VALVE PORT VALVE SEAT SEAT RING TRAVEL PLUG/STEM VALVE SIZE PLUG STEM TRIM STYLE PLUG RING PART...
  • Page 43 Instruction Manual GX Valve and Actuator February 2009 Key 3 Valve Plug/Stem and Key 2 Seat Ring (Plain Bonnet, LCC, WCC/1.0619 and CF3M/1.4409 Valve Body Material) VALVE PORT VALVE SEAT SEAT RING TRAVEL PLUG/STEM VALVE PLUG STEM SIZE PLUG RING TRIM STYLE PART PART...
  • Page 44 Instruction Manual GX Valve and Actuator February 2009 Key 3 Valve Plug/Stem and Key 2 Seat Ring (Plain Bonnet, CD3MN Valve Body Material) VALVE PORT VALVE SEAT SEAT RING TRAVEL PLUG/STEM VALVE SIZE PLUG STEM TRIM STYLE PLUG RING PART PART SIZE STYLE...
  • Page 45 Instruction Manual GX Valve and Actuator February 2009 Key 3 Valve Plug/Stem and Key 2 Seat Ring (Plain Bonnet, CD3MN Valve Body Material) VALVE PORT VALVE SEAT SEAT RING TRAVEL PLUG/STEM VALVE PLUG STEM SIZE PLUG RING TRIM STYLE PART PART SIZE STYLE...
  • Page 46 Instruction Manual GX Valve and Actuator February 2009 Key 3 Valve Plug/Stem and Key 2 Seat Ring (Plain Bonnet, CF3 Valve Body Material) VALVE PORT VALVE SEAT SEAT RING TRAVEL PLUG/STEM VALVE PLUG STEM SIZE PLUG RING TRIM STYLE PART PART SIZE STYLE...
  • Page 47 Instruction Manual GX Valve and Actuator February 2009 Key 3 Valve Plug/Stem and Key 2 Seat Ring (Plain Bonnet, CF3 Valve Body Material) VALVE PORT VALVE SEAT SEAT RING TRAVEL PLUG/STEM VALVE SIZE PLUG STEM TRIM STYLE PLUG RING PART PART SIZE STYLE...
  • Page 48 Instruction Manual GX Valve and Actuator February 2009 Key 3 Valve Plug/Stem and Key 2 Seat Ring (Plain Bonnet, CN7M and CW2M Valve Body Material) VALVE PORT VALVE SEAT SEAT RING TRAVEL PLUG/STEM VALVE PLUG STEM SIZE PLUG RING TRIM STYLE PART PART SIZE...
  • Page 49 Instruction Manual GX Valve and Actuator February 2009 Key 3 Valve Plug/Stem and Key 2 Seat Ring (Plain Bonnet, CN7M and CW2M Valve Body Material) VALVE PORT VALVE SEAT SEAT RING TRAVEL PLUG/STEM VALVE PLUG STEM SIZE PLUG RING TRIM STYLE PART PART SIZE...
  • Page 50 Instruction Manual GX Valve and Actuator February 2009 Key 3 Valve Plug/Stem and Key 2 Seat Ring (Extension Bonnet, LCC, WCC/1.0619 and CF3M/1.4409 Valve Body Material) VALVE PORT VALVE SEAT SEAT RING TRAVEL PLUG/STEM VALVE PLUG STEM SIZE PLUG RING TRIM STYLE PART PART...
  • Page 51 Instruction Manual GX Valve and Actuator February 2009 Key 3 Valve Plug/Stem and Key 2 Seat Ring (Extension Bonnet, LCC, WCC/1.0619 and CF3M/1.4409 Valve Body Material) VALVE PORT VALVE SEAT SEAT RING TRAVEL PLUG/STEM VALVE PLUG STEM SIZE PLUG RING TRIM STYLE PART PART...
  • Page 52 Instruction Manual GX Valve and Actuator February 2009 Key 3 Valve Plug/Stem and Key 2 Seat Ring (Extension Bonnet, LCC, WCC/1.0619 and CF3M/1.4409 Valve Body Material) VALVE PORT VALVE SEAT SEAT RING TRAVEL PLUG/STEM VALVE PLUG STEM SIZE PLUG RING TRIM STYLE PART PART...
  • Page 53 Instruction Manual GX Valve and Actuator February 2009 Key 3 Valve Plug/Stem and Key 2 Seat Ring (Bellows Bonnet, LCC, WCC/1.0619 and CF3M/1.4409 Valve Body Material) VALVE PORT VALVE SEAT SEAT RING TRAVEL PLUG/STEM VALVE PLUG STEM SIZE PLUG RING TRIM STYLE PART PART...
  • Page 54 Instruction Manual GX Valve and Actuator February 2009 Key 3 Valve Plug/Stem and Key 2 Seat Ring (Bellows Bonnet, LCC, WCC/1.0619 and CF3M/1.4409 Valve Body Material) VALVE PORT VALVE SEAT SEAT RING TRAVEL PLUG/STEM VALVE PLUG STEM SIZE PLUG RING TRIM STYLE PART PART...
  • Page 55 Instruction Manual GX Valve and Actuator February 2009 Key 3 Valve Plug/Stem and Key 2 Seat Ring (Bellows Bonnet, LCC, WCC/1.0619 and CF3M/1.4409 Valve Body Material) VALVE PORT VALVE SEAT SEAT RING TRAVEL PLUG/STEM VALVE PLUG STEM SIZE PLUG RING TRIM STYLE PART PART...
  • Page 56 Instruction Manual GX Valve and Actuator February 2009 Key 3 Valve Plug/Stem and Key 2 Seat Ring (Bellows Bonnet, LCC, WCC/1.0619 and CF3M/1.4409 Valve Body Material) VALVE PORT VALVE SEAT SEAT RING TRAVEL PLUG/STEM VALVE PLUG STEM SIZE PLUG RING TRIM STYLE PART PART...
  • Page 57 Instruction Manual GX Valve and Actuator February 2009 Key 3 Valve Plug/Stem and Key 2 Seat Ring (Bellows Bonnet, CW2M Valve Body Material) VALVE PORT VALVE SEAT SEAT RING TRAVEL PLUG/STEM VALVE PLUG STEM SIZE PLUG RING TRIM STYLE PART PART SIZE STYLE...
  • Page 58 Instruction Manual GX Valve and Actuator February 2009 Key 3 Valve Plug/Stem and Key 2 Seat Ring (Bellows Bonnet, CW2M Valve Body Material) VALVE PORT VALVE SEAT SEAT RING TRAVEL PLUG/STEM VALVE PLUG STEM SIZE PLUG RING TRIM STYLE PART PART SIZE STYLE...
  • Page 59 Instruction Manual GX Valve and Actuator February 2009...
  • Page 60 February 2009 Fisher, FIELDVUE, Cavitrol, and Whisper Trim are marks owned by one of the companies in the Emerson Process Management business division of Emerson Electric Co. Emerson Process Management, Emerson, and the Emerson logo are trademarks and service marks of Emerson Electric Co.

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