Electro-Pneumatic Valve PositionerDead-Weight-Tester

Electro-Pneumatic Valve Positioner

Electro-Pneumatic Valve Positioner


Armed with the design ideas of block structure and Multi-port type, we produced the IS-EP 1000 series E-P valve positioner which has two types, one is Linear and another is rotary. The Linear one is used for linear operation of pneumatic linear valve actuator. The rotary one is used for rotary pneumatic actuator. They control valve stroke accurately, through pressure air, according to input signal of 4-20mA being input from electrical controller control system.

In addition, the internal position transmitter and/or limit switches are easily to be assembled inside of the positioner in order to senses mechanical position change of stem being on the valve or similar device and converses to current signal of DC 4-20mA outputs for computers or Industry Processing Control System. It is flame proof type attached internally.


1. There is no resonance in the range of 5-200Hz.
2. Performing 1/2 Split Control without any other substitutes.
3. Easy to adjust zero and span.
4. Easy to convert from Reverse Action to Direct Action or vice versa.