how electro pneumatic positioner works ?
The electro -pneumatic positioner is used in Control Valves with pneumatically operated actuators. The valve is operated by means of electrical controller or Control Systems With an control signal of 4 to 20 mA or split ranges of 4~12/ 12~20 mA. Electro-Pneumatic Positioner converts this control signal into a pneumatic output in proportion to the lift of… Read More »