1 when power disconnected, the pneumatic actuator fault closed can avoid filter upstream drainage or eliminate filter overflow
2 pneumatic let project budget become loose
3 spark in damp environment is very dangerous, pneumatic from external environment fluctuations.
4 factory workers basic skills and standard manual tools can repair pneumatic actuator
5 electric actuator has a lot of moment switch, limit switch, set installation is very complicated, usually need to original engineers
6 pneumatic actuators will not be eliminated, the two type of full stroke, allowing the regulation and digital control
7 pneumatic actuators life cycle is long, the guarantee 1 million times action. Pneumatic actuators can be accurate, can repeat control, 0.25%
8 electric actuator by temperature, internal condensation or through the catheter into the water can destroy electric actuators member
9 pneumatic actuators valve switch speed can be independent setting
10 electric actuator action of the oil leakage, restore and repackage, it is difficult to clean up. And pneumatic actuator USES is gas, very clean, need not worry about pollution.
11 pneumatic actuators can accept continuous gas signal, the output linear displacement (plus electric/gas conversion device, can also accept continuous electrical signal), some with rocker arm, can output angular displacement.
12 pneumatic actuators can have positive and reaction function.
13 pneumatic actuator movement speed, but load increases speed will slow.
14 pneumatic actuators high reliability, but air after interrupting the valve can not keep (plus the position valve after can keep). 1 when power disconnected, the pneumatic actuator fault closed can avoid filter upstream drainage or eliminate filter overflow
2 pneumatic let project budget become loose
3 spark in damp environment is very dangerous, pneumatic from external environment fluctuations.
4 factory workers basic skills and standard manual tools can repair pneumatic actuator
5 electric actuator has a lot of moment switch, limit switch, set installation is very complicated, usually need to original engineers
6 pneumatic actuators will not be eliminated, the two type of full stroke, allowing the regulation and digital control
7 pneumatic actuators life cycle is long, the guarantee 1 million times action. Pneumatic actuators can be accurate, can repeat control, 0.25%
8 electric actuator by temperature, internal condensation or through the catheter into the water can destroy electric actuators member
9 pneumatic actuators valve switch speed can be independent setting
10 electric actuator action of the oil leakage, restore and repackage, it is difficult to clean up. And pneumatic actuator USES is gas, very clean, need not worry about pollution.
11 pneumatic actuators can accept continuous gas signal, the output linear displacement (plus electric/gas conversion device, can also accept continuous electrical signal), some with rocker arm, can output angular displacement.
12 pneumatic actuators can have positive and reaction function.
13 pneumatic actuator movement speed, but load increases speed will slow.
14 pneumatic actuators high reliability, but air after interrupting the valve can not keep (plus the position valve after can keep). |
