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Introduction of 150LB check valve£º

150LB ASTM check valve relies on the medium itself flow and automatically opening and closing the valve disc, preventing the media flow back, also known as check valve, one-way valve, countercurrent valve. Check valve is a kind of automatic valves, its main function is to prevent media backflow, prevent pump and drive motor reverse, as well as the discharge of container medium.

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150LB ASTM check valve is widely used in petroleum, chemical, metallurgy, thermal power plants and other industries.

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Common styles are as follows:

1, Spring type: liquid from bottom to top, relying on the pressure of the spring control of the disc, the pressure disappears, the spring force will be pressed down the disc, closed liquid backflow. It is commonly used for smaller diameter check valves.

2, Gravity type: similar to the spring type, rely on the valve disc's own gravity closed, preventing backflow.

3, Swing type: liquid in the valve body straight through, relying on pressure to open the side of the rotating disc, pressure lost, the disc depends on self-weight back, reverse liquid pressure closed disc.

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