FISHER™ GX 3-Way Three-Way Control Valve and Actuator System
Main Features
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.
Compact actuator design. The multi-spring GX 3-Way actuator is a compact robust design. The GX 3-Way design has been optimized to eliminate complicated 3-way actuator sizing procedures - once the valve body and port size are selected, the actuator size is fixed.
Reliable Actuator Performance. Special actuator diaphragm material helps reduce common problems such as air oxidation, thermal aging, low temperature embrittlement, and loss of retention. The double-sided diaphragm within the actuator helps eliminate mechanical wear-induced failure.
Modular design. The design architecture has been optimized to maximize the use of common parts across sizes. The actuator stem and stem connector are used across all GX 3-Way sizes
Low lifetime costs. Reduced product complexity, low parts count, and part commonality all contribute to reduced inventory and maintenance costs
Stable flow control. The flow cavity of the GX 3-Way valve body has been engineered to provide stable flow and reduce process variability. This linear stability for both converging and diverging flow is perfectly suited for temperature and pH control applications.
Emission Requirements. ENVIRO-SEAL packing systems provide an improved stem seal to help prevent the loss of valuable or hazardous process fluid. The GX 3-Way comes standard with ENVIRO-SEAL PTFE packing. ENVIRO-SEAL graphite ULF packing is also available for all sizes and is standard on high temperature constructions
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 and DVC6200 digital valve controllers allow easy instrument removal, without a requirement for tubing disconnection or replacement (fail-down construction)
Integrated mounting of non-contact positioners and accepts various accessories: The DVC2000 & DVC6200 Digital Valve Controllers can be integrally mounted to GX valves, eliminating the need for mounting brackets. The DVC2000 & DVC6200 Digital Valve Controllers offer as standard anon-contacting valve position feedback system. This is a true linkage-less design, which uses no levers and no touching parts between the valve stem and the positioner. The GX is available with a variety of digital or analog positioners, as well as solenoid and limit switches.
Specifications
Valve Size: NPS 1/2 to NPS 4
Pressure Rating: ANSI CL150-300 PN10-40
Process Connection Type: Flanged
Material: Carbon Steel, Stainless Steel
Other Configurations: Contact us for additional specifications or options.
Applications
Low-pressure three-way valves commonly used in power, petrochemical, chemical, paper and other industries
Suitable for most fluid media, including water, steam, air, process gases, and more
Can be used in both converging and diverging applications
