Backflow Preventer Manufacturer - China Manufacturers, Suppliers, Factory

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Flanged Type Static Balancing Valve

Flanged Type Static Balancing Valve Flange static balance valve is a major hydraulic balance product used by hVAC water system to ensure high-precision flow pre-regulation, to ensure that the whole...
Introduction of common valves

There are many types and complex types of valves, mainly including gate valves, globe valves, throttle valves, butterfly valves, plug valves, ball valves, electric valves, diaphragm valves, check v...
Knowledge of valve maintenance

For the valves in operation, all valve parts should be complete and intact. The bolts on the flange and the bracket are indispensable, and the threads should be intact and no loosening is allowed. ...
What is the difference between clip butterfly valve and flange butterfly valve?

Wafer butterfly valve and Double Flange butterfly valve are two common types of butterfly valves. Both types of valves are rubber seated butterfly valves. The application range of the two kinds of ...
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 ...
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...