Data Sheet

ManualsBrandsEmerson ManualsControl ValvesEmerson Fisher GX

www.Fisher.com

Fisherr GX 3-Way

Control Valve and Actuator System

The Fisher GX 3-Way is a compact, state-of-the-art

control valve and actuator system, designed to

accurately control water, oils, steam, and other

industrial fluids. The robust GX 3-way valve package

is perfectly suited to address the space limitations of

the OEM industry.

The GX 3-Way is rugged, reliable, and easy to

select. The internal valve trim is designed to ensure

long service life and avoiding unnecessary

maintenance. The same construction may be used

for both converging and diverging applications.

The GX 3-Way meets the requirements of both EN

and ASME standards. It is available with a complete

accessory package, including the FIELDVUEt

DVC2000 integrated digital valve controller.

The GX 3-Way trim characteristics are designed for

accurate temperature control in heat exchanger

applications.

D Side-Port Common (SPC)----The side flange is

the common p ipe connection for general converging

(flow-mixing) and diverging (flow-splitting) service

(see figure 5). Utilizes an unbalanced plug design.

D Bottom-Port Common (BPC)-- --A balanced

design used for high nP applications. The bottom

flange is the common pipe connection for both

converging and diverging service (see figure 9 ).

D High--Temperature Side--Port Common

(SPC)---- The side flange is the common pipe

connection for general converging (flow-mixing) and

diverging (flow-splitting) service (see figure 3).

Utilizes an unbalanced plug design, a stem

extension, a yoke extension, and includes

live--loaded ULF graphite packing and a hard--faced

seat ring.

W9557

GX 3--WAY

GX 3--WAY HIGH--TEMPERATURE

GE49204

X0176

Figure 1. Fisher GX 3

Way Control Valve, Actuator, and FIELDVUE DVC2000 Digital Valve Controller

Product Bulletin

51.1:GX 3--Way

D103305X012

August 2011

GX 3--Way Valve and Actuator

Summary of content (24 pages)

PAGE 1
Product Bulletin 51.1:GX 3--Way D103305X012 August 2011 GX 3--Way Valve and Actuator Fisherr GX 3-Way Control Valve and Actuator System The Fisher GX 3-Way is a compact, state-of-the-art control valve and actuator system, designed to accurately control water, oils, steam, and other industrial fluids. The robust GX 3-way valve package is perfectly suited to address the space limitations of the OEM industry. The GX 3-Way is rugged, reliable, and easy to select.
PAGE 2
Product Bulletin 51.1:GX 3--Way August 2011 GX 3--Way Valve and Actuator COMPACT FIELD-REVERSIBLE MULTI-SPRING ACTUATOR INTEGRATED POSITIONER MOUNTING NAMUR POSITIONER MOUNTING CAPABILITY CLAMPED BONNET DESIGN ONE-PIECE SCREWED PACKING FOLLOWER STANDARD LIVE-LOADED PACKING W9578-1 Figure 2.
PAGE 3
Product Bulletin 51.1:GX 3--Way August 2011 Contents Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Principle of Operation . . . . . . . . . . . . . . . . . . . . . GX 3-Way Control Valve Specifications and Materials of Construction . . . . . . . . . . . The GX 3-Way Diaphragm Actuator . . . . . . . . Valve-Actuator Dimensions and Weights . . . . GX 3-Way Actuator Accessories . . . . . . . . . . . The FIELDVUE DVC2000 Digital Valve Controller . . . . . . . . . . . . . . . . .
PAGE 4
Product Bulletin 51.1:GX 3--Way August 2011 GX 3--Way Valve and Actuator LINKAGE-LESS POSITION FEEDBACK INTEGRAL PNEUMATIC PASSAGEWAYS DVC2000 COVER PUSH-BUTTON INSTRUMENT SETUP Figure 4. Fisher GX 3-Way and FIELDVUE DVC2000 Digital Valve Controller Optimized valve and actuator system. Product simplicity and ease of selection form the foundation of the GX 3-Way. Mounted with a digital or analog positioner, the GX 3-Way provides high performance control across a wide range of process applications.
PAGE 5
Product Bulletin 51.1:GX 3--Way August 2011 Easy maintenance. The simple screwed seat-ring and one-piece plug and stem design provide easy maintenance. Design simplicity and parts commonality contribute to reduced spares inventory. The integrated DVC2000 digital valve controller allows easy instrument removal, without a requirement for tubing disconnection or replacement (fail-down construction). Digital valve controller. The GX 3-Way is available with the DVC2000 digital valve controller.
PAGE 6
Product Bulletin 51.1:GX 3--Way August 2011 GX 3--Way Valve and Actuator Flow Directions --- Side Port Common Constructions See figures 5, 6, 7, and 8. DIVERGING BONNET O-RING LEFT PORT (COMMON PORT) VALVE PLUG SEAT RING RIGHT PORT W9580-1 BOTTOM PORT Figure 5.
PAGE 7
Product Bulletin 51.1:GX 3--Way August 2011 GX 3--Way Valve and Actuator CONVERGING BONNET O-RING LEFT PORT (COMMON PORT) VALVE PLUG RIGHT PORT SEAT RING W9580-1 BOTTOM PORT Figure 7. Side Port Common Construction Details for Converging Constructions CONVERGING PLUG DOWN (0% TRAVEL) CONVERGING PLUG MID TRAVEL (50% TRAVEL) INLET CONVERGING PLUG UP (100% TRAVEL) INLET INLET BOTTOM PORT FLOW IS SHUTOFF.
PAGE 8
Product Bulletin 51.1:GX 3--Way August 2011 GX 3--Way Valve and Actuator Flow Directions --- Bottom Port Common Constructions See figures 9, 10, 11, and 12. DIVERGING BONNET VALVE PLUG SEAL RING BACKUP RING O-RING LEFT PORT LOWER SEAT / CAGE RIGHT PORT W9579-1 BOTTOM PORT (COMMON PORT) Figure 9.
PAGE 9
Product Bulletin 51.1:GX 3--Way August 2011 GX 3--Way Valve and Actuator CONVERGING BONNET VALVE PLUG LEFT PORT O-RING SEAL RING BACKUP RING LOWER SEAT / CAGE RIGHT PORT W9579-1 BOTTOM PORT (COMMON PORT) Figure 11. Bottom Port Common Construction Details for Converging Constructions CONVERGING PLUG DOWN (0% TRAVEL) CONVERGING PLUG MID TRAVEL (50% TRAVEL) INLET LEFT-HAND FLOW IS SHUTOFF.
PAGE 10
Product Bulletin 51.1:GX 3--Way August 2011 GX 3--Way Valve and Actuator Principle of Operation - GX 3-Way Actuator AIR SUPPLY AIR VENT AIR VENT AIR SUPPLY FAIL-DOWN (STANDARD CONFIGURATION) FAIL-UP (OPTIONAL CONFIGURATION) E0896-3 Figure 13. Fisher GX 3-Way Principle of Operation -- Actuator Fail Position Integrated Air Supply. When mounted with the DVC2000 digital valve controller, the GX 3-Way uses an integrated actuator air supply system.
PAGE 11
Product Bulletin 51.1:GX 3--Way August 2011 GX 3--Way Valve and Actuator GX 3-Way Control Valve Specifications and Materials of Construction See tables 1 and 2. Table 1. Fisher GX 3-Way Valve Specifications(1) Specifications EN Valve Body Size DN 25, 40, 50, 80, 100 Pressure Rating PN 10 / 16 / 25 / 40 per EN 1092-1 End Connections Flanged raised face per EN 1092-1 Valve Body Materials Bonnet Materials Face-to-Face Dimensions Shutoff per IEC 60534-4 and ANSI/FCI 70-2 Flow Direction Trim Style 1.
PAGE 12
Product Bulletin 51.1:GX 3--Way August 2011 GX 3--Way Valve and Actuator Table 3. Trim Materials (all sizes) Valve Body Construction Trim Type Stem Carbon steel (1.0619 / WCC) Bottom Port Common S31603 strain hardened Side Port Common S31603 strain hardened Stainless steel (1.
PAGE 13
Product Bulletin 51.1:GX 3--Way August 2011 GX 3--Way Valve and Actuator BELLEVILLE SPRING PACK PACKING SPACER ANTI-EXTRUSION WASHER PACKING SET ANTI-EXTRUSION WASHER PACKING BOX RING E0897/IL STANDARD BONNET WITH PTFE PACKING SET DN 25 through DN 100 (NPS 1 through 4) BELLEVILLE SPRING PACK PACKING SPACER PACKING RINGS PACKING BOX RING GE38594_ULF STANDARD BONNET WITH OPTIONAL GRAPHITE ULF PACKING SET (STANDARD ON HT CONSTRUCTION) DN 25 through DN 100 (NPS 1 through 4) Figure 15.
PAGE 14
Product Bulletin 51.1:GX 3--Way August 2011 GX 3--Way Valve and Actuator The GX 3-Way Diaphragm Actuator The GX 3-Way uses a multi-spring, pneumatic diaphragm actuator (see figure 16). It is capable of air supply pressures up to 5.0 barg (72 psig), allowing valve shutoff at high pressure drops (see table 8). The GX 3-Way product selection system automatically matches the actuator to the valve, eliminating the need for complex actuator sizing procedures.
PAGE 15
Product Bulletin 51.1:GX 3--Way August 2011 GX 3--Way Valve and Actuator Actuator Selection With the GX 3-Way, actuator selection has never been easier. Once the valve size has been determined, the actuator is automatically selected. The following tables provide the maximum allowable pressure drops for the GX 3-Way. See table 8 for Side Port Common construction and table 9 for Bottom Port Common construction.
PAGE 16
Product Bulletin 51.1:GX 3--Way August 2011 GX 3--Way Valve and Actuator Table 8. Maximum Allowable Pressure Drop (Side Port Common) VALVE SIZE ACTUATOR SIZE FLOW DIRECTION Converging DN25 225 Diverging Converging DN40 225 Diverging Converging DN50 750 Diverging Converging DN80 750 Diverging Converging DN100 750 Diverging FAIL-DOWN Operating Pressure MAX DP @ Maximum Supply 3 3.44 4 5 Pressure bar bar bar bar 3 bar 3.44 bar 4 bar 5 bar MAX DP @ Maximum Supply Pressure PTFE 18.1 21.
PAGE 17
Product Bulletin 51.1:GX 3--Way August 2011 GX 3--Way Valve and Actuator Valve-Actuator Dimensions and Weights See figure 17, table 10, and table 11. Table 10.
PAGE 18
Product Bulletin 51.1:GX 3--Way August 2011 GX 3--Way Valve and Actuator Table 12.
PAGE 19
Product Bulletin 51.1:GX 3--Way August 2011 GX 3--Way Valve and Actuator Table 13. Positioner Selection Guidelines Type DVC2000 DVC6200 3661 3660 Digital I/P(1) I/P(2) P/P(3) X X X Intrinsic Safety(4) X X X Flameproof / Explosion Proof(4) X NonIncendive(4) X X X X 1. Digital I/P - microprocessor based electro-pneumatic with HART communication. 2. I/P - electro-pneumatic 3. P/P - pneumatic 4. Refer to Fisher bulletin 9.2:001 for instrument hazardous area classification details.
PAGE 20
Product Bulletin 51.1:GX 3--Way August 2011 GX 3--Way Valve and Actuator Optional Positioners and Instruments 3660 and 3661 Valve Positioners The 3660 pneumatic and 3661 electro-pneumatic positioners are rugged, accurate, and feature low steady-state air consumption. Designed to meet intrinsic safety requirements, these positioners offer simple functionality in a small package. (See table 13.) W9713 Figure 20.
PAGE 21
Product Bulletin 51.1:GX 3--Way August 2011 GX 3--Way Valve and Actuator Coefficients Table 14.
PAGE 22
Product Bulletin 51.1:GX 3--Way August 2011 GX 3--Way Valve and Actuator Table 15. Fisher GX 3--Way, Side Port Common (SPC) Converging, Linear Linear Characteristic Side Port Common (SPC) Converging Valve Size Maximum Inlet Port Flow Travel Coeffi(see mm figure 7) cient Cv Right DN25/ NPS 1 19 Bottom DN40/ NPS 1--1/2 Right 19 Bottom Right DN50/ NPS 2 19 Bottom Right DN80/ NPS 3 38 Bottom Right DN100/ NPS 4 38 Bottom 1. At maximum flow.
PAGE 23
Product Bulletin 51.1:GX 3--Way August 2011 GX 3--Way Valve and Actuator Table 16. Fisher GX 3--Way, Bottom Port Common (BPC) Diverging, Linear Linear Characteristic Bottom Port Common (BPC) Diverging Valve Size Maximum Exit Port Flow Travel Coeffi(see mm figure 9) cient Cv Right DN25/ NPS 1 19 Left DN40/ NPS 1--1/2 Right 19 Left Right DN50/ NPS 2 19 Left Right DN80/ NPS 3 38 Left Right DN100/ NPS 4 38 Left Valve Opening—Percent of Total Travel (see figure 10) 0 10 (Plug Down) 16.3 15.
PAGE 24
Product Bulletin 51.1:GX 3--Way August 2011 GX 3--Way Valve and Actuator Table 17. Fisher GX 3--Way, Bottom Port Common (BPC) Converging, Linear Linear Characteristic Bottom Port Common (BPC) Converging Valve Size Maximum Inlet Port Travel mm Cv Right DN25/ NPS 1 19 Left DN40/ NPS 1--1/2 Right 19 Left Right DN50/ NPS 2 19 Left Right DN80/ NPS 3 38 Left Right DN100/ NPS 4 38 Left Valve Opening—Percent of Total Travel (see figure 12) Flow (see Coeffifigure 11) cient 0 10 (Plug Down) 16.4 14.