Shanghai ZhengChang International Machinery and Engineering Co. Ltd. 
All gate valves designed and made by our company according to our country actual situation, with characteristics of reasonable structure, reliable performance and easy using.
The electric gate valves are now produced can satisfy the rapid development of grain processing and feed industries. We can make and design gate valves according to special requirement of users.
| Type Model | Flow | Moving speed of gate valve | Motor power | |
| TZMD20 | 50 | 0.023 | 0.25 | 200*200 |
| TZMD25 | 80 | 0.023 | 0.25 | 250*250 |
| TZMD32 | 150 | 0.023 | 0.25 | 320*320 |
| TZMD40 | 300 | 0.023 | 0.37 | 400*400 |
| TZMD50 | 500 | 0.023 | 0.37 | 500*500 |
| TZMD60 | 700 | 0.023 | 0.55 | 600*600 |
