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PD30LA Series Linear Stem Motion Pneumatic Diaphragm Actuator

PD30LA Series The series of pneumatic film direct stroke actuator is a direct stroke pneumatic membrane actuator with multi-spring structure, light weight, small volume, high performance and large output force. Its working principle is: the pressure air converted by the positioner from electric or pneumatic signal of adjustable instrument is input to the membrane interior, which take effect on the diaphragm to produce thrust, so that the output shaft would move and compress the spring until balancing the spring reaction force, which is a predetermined position. Position control can also be achieved through the gas signal (20 ~ 100 KPa) taking effect directly on the diaphragm.


Performance Characteristics   

1、Straight stroke multi-spring diaphragm pneumatic actuator is characterized with light weight, small size, high performance, easy to install and so on.
2、Through the film sealing, the pressure of the gas source is on the tray, and in the same time, the compressed spring moves and gas source pressure take effect on the effective area of the tray to produce the thrust force on or up or down. Without gas pressure, the thrust force is released from the spring recovery to move, driving the push rod up or down.

Specifications   
门阀口径
公称压力
使用温度
连接方式
阀体材质
阀芯材质
泄漏等级
可调比
流量特性

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