Gate valve structure diagram Gate valve working principle
gate valve china:
The gate valve is a valve that moves the shutter closure member in the vertical direction of the centerline of the passage. Generally, it consists of valve body, valve seat, valve stem, gate, valve cover and sealing ring. It can be converted into a variety of electric gate valves and pneumatic gate valves by means of transmission and gate valves. For full opening and full closing, it cannot be adjusted and throttled.
Gate valve working principle:
The gate of the gate valve moves linearly with the valve stem. Usually, the trapping rod has a trapezoidal thread. The nut at the top of the valve and the guide groove on the valve body convert the rotary motion into a linear motion, that is, the operating torque is changed. For operating the thrust.
When the gate valve is closed
The sealing surface can be sealed only by the pressure of the medium, that is, the sealing surface of the ram is pressed against the valve seat of the other side by the pressure of the medium to ensure the sealing of the sealing surface, which is self-sealing. Most of the gate valves are forced to seal, that is, when the valve is closed, the external force is forced to press the gate to the valve seat to ensure the sealing of the sealing surface.
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