Fisher GX 3 Way Control Valve and Actuator System

1 Product Bulletin GX 3-Way Valve and Actuator :GX 3-Way D103305X012 August 2017. Fisher 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 FIELDVUE DVC2000. and FIELDVUE DVC6200 integrated digital Valve controllers. W9557. The GX 3-Way trim characteristics are designed for Fisher GX 3-Way Control Valve , Actuator , and FIELDVUE. accurate temperature Control in heat exchanger DVC2000 Digital Valve Controller applications.

2 N Side-Port Common (SPC)--The side flange is the common pipe connection for general converging (flow-mixing) and diverging (flow-splitting) service (see figure 4). Utilizes an unbalanced plug design. n Bottom-Port Common (BPC)--A balanced design used for high pressure drop applications. The bottom flange is the common pipe connection for both converging and diverging service (see figures 8. and 10). n 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 2). Utilizes an GE49204. X0176. unbalanced plug design, a stem extension, a yoke Fisher GX 3-Way High-Temperature Control Valve and extension, and includes ENVIRO-SEAL graphite Actuator ULF packing (figure 14) and a hard-faced seat ring. Product Bulletin :GX 3-Way GX 3-Way Valve and Actuator August 2017 D103305X012. Figure 1. Fisher GX 3-Way Control Valve Assembly with Port-Guided Contoured Plug (Side Port Common).

3 COMPACT FIELD-REVERSIBLE. MULTI-SPRING Actuator . INTEGRATED POSITIONER. MOUNTING. NAMUR POSITIONER. MOUNTING CAPABILITY. CLAMPED BONNET DESIGN. ONE-PIECE SCREWED. PACKING FOLLOWER. STANDARD ENVIRO-SEAL PACKING. W9578-1. Figure 2. Fisher GX 3-Way High-Temperature Control Valve Assembly with Port-Guided Contoured Plug (Side Port Common). INTEGRATED POSITIONER. COMPACT FIELD-REVERSIBLE MOUNTING. MULTI-SPRING Actuator . NAMUR POSITIONER. MOUNTING CAPABILITY. STEM EXTENSION. YOKE EXTENSION. CLAMPED BONNET DESIGN. ONE-PIECE SCREWED. PACKING FOLLOWER. STANDARD ENVIRO-SEAL GRAPHITE ULF PACKING. GRAPHITE SEAL RING. X0094-1. HARD-FACED SEAT AND GUIDE. SURFACES ON SEAT RING. 2. Product Bulletin GX 3-Way Valve and Actuator :GX 3-Way D103305X012 August 2017. Features n Available with integrated, easy-to-calibrate DVC2000 or DVC6200 digital Valve controller n Easy to size and select n Valve body sizes DN 25 to DN 100. (NPS 1 through 4). n No Actuator sizing required--selection is automatic n Pressure Classes PN 10-40, CL150 and 300.

4 N Engineered for easy maintenance n High capacity design n Maximum part commonality across sizes n Valve body flow passage optimized for flow stability n Replaceable trim n Shutoff capabilities: Class IV metal to metal n Low lifetime costs n ISO 5210 F7 mounting available for use with n Robust, low-profile design electric actuators Contents Features .. 3 Valve - Actuator Dimensions and Weights .. 17. Principle of Operation .. 10 GX 3-Way Actuator Accessories .. 19. GX 3-Way Control Valve Specifications The FIELDVUE DVC2000 Digital Valve Controller .. 19. and Materials of Construction .. 11 Optional Positioners and Instruments .. 20. The GX 3-Way Diaphragm Actuator .. 14. 3. Product Bulletin :GX 3-Way GX 3-Way Valve and Actuator August 2017 D103305X012. Figure 3. Fisher GX 3-Way and FIELDVUE DVC2000 Digital Valve Controller LINKAGE-LESS POSITION. FEEDBACK. INTEGRAL PNEUMATIC. PASSAGEWAYS. DVC2000. COVER. PUSH-BUTTON INSTRUMENT. SETUP. Optimized Valve and Actuator System .

5 Product Low lifetime costs. Reduced product complexity, low simplicity and ease of selection form the foundation of parts count, and part commonality all contribute to the GX 3-Way. Mounted with a digital or analog reduced inventory and maintenance costs. positioner, the GX 3-Way provides high performance Control across a wide range of process applications. Stable flow Control . The flow cavity of the GX 3-Way Valve body has been engineered to provide stable flow Compact Actuator design. The multi-spring GX 3-Way and reduce process variability. This linear stability for Actuator is a compact robust design. The GX 3-Way both converging and diverging flow is perfectly suited design has been optimized to eliminate complicated for temperature and pH Control applications. 3-way Actuator sizing procedures - once the Valve body and port size are selected, the Actuator size is fixed. Emission Requirements ENVIRO-SEAL packing systems provide an improved stem seal to help prevent the loss of valuable or hazardous process fluid.

6 Reliable Actuator Performance. Special Actuator The GX 3-Way comes standard with ENVIRO-SEAL PTFE. diaphragm material helps reduce common problems packing. ENVIRO-SEAL graphite ULF packing is also such as air oxidation, thermal aging, low temperature available for all sizes and is standard on high embrittlement, and loss of retention (see table 6). The temperature constructions. double-sided diaphragm within the Actuator helps eliminate mechanical wear-induced failure. Easy maintenance. The simple screwed seat-ring and one-piece plug and stem design provide easy Modular design. The design architecture has been maintenance. Design simplicity and parts optimized to maximize the use of common parts commonality contribute to reduced spares inventory. across sizes. The Actuator stem and stem connector The integrated DVC2000 and DVC6200 digital Valve are used across all GX 3-Way sizes. controllers allow easy instrument removal, without a 4. Product Bulletin GX 3-Way Valve and Actuator :GX 3-Way D103305X012 August 2017.

7 Requirement for tubing disconnection or replacement to the Actuator casing via an air passage in the yoke (fail-down construction). leg, causing the Valve to stroke (see figure 12). This eliminates the need for positioner-to- Actuator tubing Digital Valve controller. The GX 3-Way is available with in the fail-down configuration. the DVC2000 digital Valve controller. The DVC2000 is easy to use, compact, and designed for easy The DVC2000 and DVC6200 mounting interfaces are mounting. It converts a 4-20 mA input signal into a identical on both sides of the Actuator yoke for Valve pneumatic output signal, which feeds the Control Valve body sizes DN 25 through DN 100 (NPS 1 through 4). Actuator . Instrument setup is performed with a push This symmetrical design allows the DVC2000 to be button and LCD interface. This interface is protected easily moved from one side of the Valve to the other from the environment within a sealed enclosure. The without the need to rotate the Actuator .

8 Interface supports multiple languages, including German, French, Italian, Spanish, Chinese, Japanese, Linkage-less feedback. The DVC2000 and DVC6200. Portuguese, Russian, Polish, Czech, Arabic, and digital Valve controllers offer as standard a English. non-contacting Valve position feedback System . This is a true linkage-less design, which uses no levers and no Intrinsic safety and non-incendive construction is touching parts between the Valve stem and the available to CSA, FM, ATEX, and IEC standards. An positioner. optional module provides integrated limit switches and a position transmitter. Additional Accessory selection. The GX 3-Way is available with a variety of digital or analog positioners Integrated mounting. The DVC2000 and DVC6200 besides the DVC2000 or DVC6200, as well as solenoid digital Valve controllers integrally mount to the GX and limit switches. The Actuator is also compatible 3-Way Actuator , eliminating the need for mounting with the IEC 60534-6-1 (NAMUR) positioner mounting brackets.

9 The DVC2000 transmits a pneumatic signal standard. 5. Product Bulletin :GX 3-Way GX 3-Way Valve and Actuator August 2017 D103305X012. Flow Directions -- Side Port Common Constructions Figure 4. Side Port Common Construction Details for Diverging Constructions DIVERGING. BONNET. O-RING. LEFT PORT Valve PLUG RIGHT PORT. (COMMON PORT) SEAT RING. W9580-1. BOTTOM PORT. Figure 5. Fisher GX 3-Way Flow Directions for Side Port Common Diverging Constructions DIVERGING DIVERGING DIVERGING. PLUG DOWN (0% TRAVEL) PLUG MID TRAVEL (50% TRAVEL) PLUG UP (100% TRAVEL). INLET INLET INLET. ALL FLOW PASSES FLOW IS DIVERTED EQUALLY ALL FLOW PASSES. THROUGH FROM LEFT TO BETWEEN BOTTOM AND THROUGH FROM LEFT TO. RIGHT-HAND PORT RIGHT-HAND PORT BOTTOM PORT. 6. Product Bulletin GX 3-Way Valve and Actuator :GX 3-Way D103305X012 August 2017. Figure 6. Side Port Common Construction Details for Converging Constructions CONVERGING. BONNET. O-RING. Valve PLUG. LEFT PORT RIGHT PORT.

10 (COMMON PORT) SEAT RING. W9580-1. BOTTOM PORT. Figure 7. Fisher GX 3-Way Flow Directions for Side Port Common Converging Constructions CONVERGING CONVERGING CONVERGING. PLUG DOWN (0% TRAVEL) PLUG MID TRAVEL (50% TRAVEL) PLUG UP (100% TRAVEL). INLET INLET. INLET INLET. BOTTOM PORT FLOW IS SHUT FLOW IS MIXED EQUALLY FROM RIGHT-HAND FLOW IS SHUTOFF. OFF. ALL RIGHT-HAND FLOW BOTTOM AND RIGHT-HAND ALL BOTTOM PORT FLOW EXITS. EXITS LEFT-HAND PORT PORTS THROUGH LEFT-HAND PORT. 7. Product Bulletin :GX 3-Way GX 3-Way Valve and Actuator August 2017 D103305X012. Flow Directions -- Bottom Port Common Constructions Figure 8. Bottom Port Common Construction Details for Diverging Constructions DIVERGING. BONNET. Valve PLUG. SEAL RING. O-RING. BACKUP RING. LEFT PORT LOWER. SEAT / CAGE RIGHT PORT. W9579-1. BOTTOM PORT (COMMON PORT). Figure 9. Fisher GX 3-Way Flow Directions for Bottom Port Common Diverging Constructions DIVERGING DIVERGING DIVERGING. PLUG DOWN (0% TRAVEL) PLUG MID TRAVEL (50% TRAVEL) PLUG UP (100% TRAVEL).