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Check Valve
Classification:
Valve
Key words:
Hengjia Pipeline
Valve
Product Details
Check valve refers to the opening and closing parts for the circular disc and by its own weight and medium pressure to produce action to block the medium back flow of a valve. It is an automatic valve, also known as check valve, one-way valve, return valve or isolation valve. Valve movement is divided into lifting and swing type. Lift check valve and cut-off valve structure is similar, only the lack of drive valve disc stem. The medium flows in from the inlet end (lower side) and flows out from the outlet end (upper side). When the inlet pressure is greater than the weight of the disc and its flow resistance, the valve is opened. On the other hand, the valve is closed when the medium flows back. Swing check valve has a tilt and can rotate around the axis of the disc, the working principle is similar to the lift check valve. The check valve is often used as the bottom valve of the pumping device to prevent the backflow of water. The check valve is used in combination with the stop valve to provide safe isolation. The disadvantage is that the resistance is large and the sealing is poor when closing.
1, in the pipeline system do not let the check valve to bear the weight, large check valve should be independent support, so that it is not affected by the pressure generated by the pipeline system.
2. When installing, pay attention to the direction of medium flow should be consistent with the direction of the arrow marked on the valve body.
3. The lifting vertical flap check valve should be installed on the vertical pipeline.
4. The lifting horizontal flap check valve should be installed on the horizontal pipeline.
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Contact Information
Address: Longtan Industrial Zone, Yanshan County, Cangzhou City, Hebei Province
Cangzhou Hengjia Pipeline Co., Ltd.
Cangzhou Hengjia Pipeline Co., Ltd. is located in Yanshan, Hebei Province, which is the sales branch of Hebei Longrun Pipeline Group Co., Ltd.
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