Description of working conditions and media for vacuum butterfly valve and gate valve

The vacuum butterfly valve is suitable for the generation of furnaces, gas, natural gas, liquefied petroleum gas, city gas, hot and cold air, chemical training and power generation. It is used to regulate and cut off media activities on pipelines carrying various corrosive and non-corrosive fluid media in engineering systems such as water supply and drainage.

The gate valve is a shutter of the opening and closing member. The direction of movement of the gate is straight with the direction of the fluid. The gate valve can only be fully open and fully closed. The parameters of the door are different, generally 5°. When the medium temperature is not high. It is 2°52'. Improve the manufacturability and compensate for the error that occurs during the processing of the sealing surface. This kind of ram is called elastic ram.

When the gate valve is closed, the sealing surface can be sealed only by the medium pressure, that is, the sealing surface of the shutter is pressed against the valve seat of the other side only by the medium pressure to ensure the sealing of the sealing surface, which is self-sealing. Most of the gate valves are forced to be sealed. When the valve is closed, the external pressure is required to press the gate against the valve seat to ensure the sealing of the sealing surface.