The main types of gate valves

The types of gate valves can be divided into wedge gate valves and parallel gate valves according to the sealing surface configuration. Wedge gate valves can also be divided into single pole, double plate, and elastic gate valves; Parallel gate valves can be divided into single gate plate and double gate plate. According to the thread position of the valve stem, it can be divided into two types: rising stem gate valves and hidden stem gate valves.The main gate valves product names of China gate Valve Network include:API Bellows gate valve,API Manual Lug&wafer Knife-shaped Gate Valve,API Sprocket Lug&wafer Knife-shaped Gate Valve,API Electric Lug&wafer Knife-shaped Gate Valve,API Bevel Gear Lug&wafer Knife-shaped Gate Valve,API Pneumatic Lug&wafer Knife-shaped Gate Valve

When the gate valve is closed, the sealing surface can be sealed solely by the pressure of the medium, that is, the sealing surface of the gate valve is pressed against the valve seat on the other side by the pressure of the medium to ensure the sealing of the sealing surface. This is called a self sealing gate valve. Most gate valves use forced sealing, which means that when the valve is closed, external force must be used to forcefully press the gate plate against the valve seat to ensure the sealing performance of the sealing surface.

The gate of a gate valve moves in a straight line with the valve stem, also known as a rising stem gate valve. Usually, there are trapezoidal threads on the lifting rod, which convert rotational motion into linear motion through the nut at the top of the valve and the guide groove on the valve body, that is, convert operating torque into operating thrust.

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