ZPB-201 pneumatic air lock valve is one of the auxiliary units modular instrumentation. When the instrument air system failure, the valve can automatically cut off the lock actuator and valve channel, so that the valve remains in the original position to guarantee the normal process until after the elimination of gas supply failure, resume normal work. Therefore, pneumatic locking valves are suitable for automatic control loop as an important safety device. 

1, ambient temperature: -20 - +60 ℃, relative humidity ≤ 95% 

2, environmental vibration frequency: ≤ 25Hz, amplitude <0.2mm 

3, given the pressure adjustment range :0.8-2 .5kgf/cm2 

4, Channel Pressure :0.2-2kgf / cm2 

5, sensitivity: ≤ 0.15kgf/cm2 

6, channel flow: 1.5m3 / h