Water Check Valve - China Manufacturers, Suppliers, Factory

Water Check Valve, , , ,. The product will supply to all over the world, such as Europe, America, Australia,, ,, .

ECWATECH 2016 of Moscow Russia

We attended ECWATECH 2016 of Moscow Russia from April 26~28,our booth no is E9.0.
What is a butterfly valve?

The butterfly valve was invented in the United States in the 1930s. It was introduced to Japan in the 1950s and was not widely used in Japan until the 1960s. It was not popularized in my country un...
Main classification and service conditions of valve sealing materials

Valve sealing is an important part of the whole valve, its main purpose is to prevent leakage, the valve sealing seat is also called sealing ring, it is an organization that is directly in contact ...
Casting Technology of Large Butterfly Valve

1. Structural analysis (1) This butterfly valve has a circular cake-shaped structure, the inner cavity is connected and supported by 8 reinforcing ribs, the top Φ620 hole communicates with the inne...
How butterfly valves work?

Butterfly valve is a kind of valve that uses a disc opening and closing part to reciprocate about 90° to open, close or adjust the flow rate of the medium. Butterfly valve not only has simple struc...
The basic principle of valve sealing surface grinding

Grinding is a commonly used finishing method for the sealing surface of valves in the manufacturing process. Grinding can make the valve sealing surface obtain high dimensional accuracy, geometric ...