Pneumatic piston actuator control valve

Pneumatic piston actuator control valve Product introduction

　Pneumatic piston actuator control valve manufacturer, factory and supplier. Pneumatic piston actuator control valve is generally used where the stroke of a pneumatic diaphragm actuator control valve would be too short or the thrust is too small. The compressed air is applied to a solid piston contained within a solid cylinder.

Pneumatic actuators are commonly used to actuate control valve and are available in two main forms: Pneumatic piston actuator and pneumatic diaphragm actuator. Piston actuator of the control valve can be single acting or double acting, can withstand higher input pressures and can offer smaller cylinder volumes, which can act at high speed.

The operation of a control valve involves positioning its movable part (the plug, ball or vane) relative to the stationary seat of the valve. The purpose of the pneumatic acuator is to accurately locate the valve plug in a position dictated by the control signal.The actuator accepts a signal from the control system and, in response, moves the valve to a fully-open or fully-closed position, or a more open or a more closed position (depending on whether ‘on/off’ or ‘continuous’ control action is used).

Pneumatic piston actuator control valve specification:

Performance parameter
Diameter：DN10~DN600
Pressure：PN16~PN420, Class 150-Class 2500
Flow characteristics：
1、Quick opening，Linear or EQ%
Sturcture: casting or forging globe type
Body Material：
WCB, CF8, CF8M, A105,12Cr1MoV,F22, F91, etc
Feature:
Excellent Packing System
Inside: using high temperature resistant
Stellite cobalt-based hard alloy disc
Up and down guiding ring on the disc
With best CV value
Sealing surface with special overlaying welding
Replaceble trim structure

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