The check valve is a kind of one-way valve that prevents back flowing of the medium by means of its gravity and medium pressure. It is applicable for corrosive media piping systems, drainage systems of various industries, and the cases where installation space is limited.
Check valve, also known as non-return valve which is designed with round flap, is used for preventing the medium from flowing back through the action resulted from its own gravity and medium pressure to protect the pump from starting or prevent motor from running backward. It is widely used in corrosive medium piping systems and water drainage systems of chemical, metallurgical, petroleum, electric power, light and textile industries, or used in the cases where installation space is limited.
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