Metal-sealing gate valve:

Benefits and features:

Advantages:

1. It has less influence by hydraulic resistance, and its seal surface also affected less by medium’s erosion.

2. It saves great labor to open and close.

3. It doesn’t disturb the medium’s flow and also doesn’t reduce the pressure to work.

4. Simple, short, good function, being available in wide range.

Disadvantages:

1. It is easy to cause erosion between seal surface and it is hard to maintaining.

2. It takes long time to open and close for its large dimension.

3. Its structure is complicated.