Shanghai ZhengChang International Machinery and Engineering Co. Ltd. 
Pneumatic Gate Valve
| Type Model | Flow (t/m) | Working pressure (Mpa) | Magnetic opening Contact rating |
Theoretical thrust (N) | Theoretical pull (N) |
| TZMQ20 | 50 | 0.4-0.6 | 5VA 220V |
1205 |
1019 |
| TZMQ25 | 80 | ||||
| TZMQ32 | 150 | ||||
| TZMQ40 | 300 | ||||
| TZMQ50 | 500 |
3096 |
2793 |
||
| TZMQ60 | 700 |
