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Rubber check valve
A rubber check valve made of advanced wear-resistant materials that is easy to discharge and intercept, also known as a "duckbill valve".
Product details
Advantages and Characteristics
Working principle
Technical Parameter
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Advantages and Characteristics
Xinhai flexible check valve has strong anti-corrosion and wear-resistant performance, and can extend its service life by 2-4 times compared to ordinary rubber, with a service life of up to 20-25 years;
Easy to open, low opening pressure difference, fluid can easily flow over 1 kilogram without causing blockage;
Due to the high elasticity of rubber, the flow is clean and there is no reverse leakage;
Under normal conditions, the degree of water head wear can be reduced;

Using legal connections or pipe clamps for easy connection, low installation costs, and low civil engineering costs;
Good anti freezing performance, more suitable for use in high-altitude regions.
Working principle
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