Valve type and principle-Gate valve

1. Gate valve

The principle of closure is that the sealing surface of the ram and the sealing surface of the valve seat are highly flat and conform to each other,prevents the flow of media and relies on the shape of the top mold, spring or slide valve to enhance the sealing effect.It acts as a cuts off in the pipeline.

Advantages：

①Small fluid resistance.

②Can be used with media flowing in both directions.

③When fully opened, the sealing surface is not easy to erode.

④Suitable for small valves and large valves.

Classification：

①According to the stem thread classification, one is the open rod gate valve, the other is the dark rod gate valve.

②According to the structure of the gate, one is parallel and the other is mode.