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What is a check valve? What is the principle of check valve?

The check valve is a special valve whose main function is to prevent fluid from flowing back and has good air-tight performance. Introduce the function and working principle of check valve.

Gate valve precautions

The handwheel, handle and transmission mechanism are not allowed to be used for lifting, and collision is strictly prohibited.

Gate valve characteristics

The body is made of high-grade ductile iron, which is about 20%~30% lighter than traditional gate valves, and is easy to install and maintain.

Advantages and disadvantages of gate valve

It is less labor-saving when opening and closing. Compared with the globe valve, because whether it is open or closed, the direction of movement of the gate is perpendicular to the direction of medium flow.

Gate valve type

There are many domestic manufacturers of gate valves, and most of the connection sizes are not uniform. Mainly divided into the following categories: 1. Standard valves produced by the Ministry of Machinery according to JB/T2203-1999 "Structure Length of Gate Valves"; 2. National standard valves pro......

Gate valve movement mode

When the gate valve is closed, the sealing surface can be sealed only by the medium pressure, that is, only rely on the medium pressure to press the sealing surface of the gate plate to the valve seat on the other side to ensure the sealing of the sealing surface, which is self-sealing. Most of the ......

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