Fisher® POSI-SEAL® A81
General：
The Fisher GX is a compact ,state-of-the-art control valve and actuator system, designed to control a wide range of process liquids , gases , and vapors.
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 optimized design results in reduced complexity and parts count. As a result ,the cost of maintenance is reduced.
The GX meets the requirements of both EN and ASME standards. It is available with a complete accessory package ,including the Fisher FIELDVUE DVC2000 integrated digital valve controller.
Feature：
1. Optimized valve and actuator system：Product simplicity and ease of selection form the foundation of the GX. The GX utilizes a compact ,multi-spring actuator .With exquisite structure and the characteristics of the field can change the mode of action.
2. Compact design，Low lifetime costs, Easy maintenance and Long life : The design architecture has been optimized to maximize the use of common parts across sizes. Reduced product complexity ,low parts count ,and part commonality all contribute to reduced inventory and maintenance costs.。Alloy valve constructions and hardened trim materials are available in the GX to increase valve body ,bonnet ,and trim life.
3. Stable flow control and tight shutoff：The flow cavity of the GX valve body has been engineered to provide stable flow and reduce process variability，Have larger capacity。GX can provide ANSI IV,V and VI seat leakage.
4. Integrated Linkage-less feedback Digital valve controller mounting and other accessory ：The DVC2000 and DVC6200 digital valve controller integrally mounts to the GX actuator, No need extra mounting kit.DVC2000 & DVC6200 digital valve controller can provide Linkage-less feedback. 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.
Specification：
Size：1/2”~6” or DN15~DN150
Pressure：ANSI CL150~CL300 or PN10~40
Material：Carbon Steel、Stainless Steel、Alloy Steel
Temperature：-46~371degC
Solution：
1、Low pressure globe valves commonly used in Power、Petrochemical、Chemical and Papermaking etc.
2、Can be applied to most of the fluid medium, including water, steam, air, process gases, etc.
3、Bellows structure can be used for toxic, harmful, rare and precious medium
