Pneumatic diaphragm actuator Features & Specifications

Type:Multiple spring structure

Specification:ZHA/B 22#, 23#, 34#, 45# ,56#

Failure position :Normally closed (NC),Normally open(NO)

Air supply pressure:350KPa

Spring range

FO type: 20～100Kpa, 40～200Kpa

FC type: 80～200Kpa, 120～240Kpa

ambient temperature

Standard type: -40℃～82℃

Special type (optional): -18℃～149℃, -54℃～149℃

The working principle of the pneumatic diaphragm actuator is mainly to drive the movement of the actuator through the compression of gas and the deformation of the diaphragm. When compressed air from the air source (or other gas) enters the actuator, the air source pressure will generate a torque under the action of the membrane, causing the actuator to move. When the air source pressure is reduced or cut off, the membrane returns to its original state and the actuator returns to its initial state.