(1) Metal valve: its valve body and other parts are made of metal materials. Such as cast iron valve, cast steel valve, alloy steel valve,

The Stainless Steel Valve is produced with the generation of fluid pipeline. Human beings have used valves for nearly 4000 years. In ancient China, wooden

Ferrule connection has only been developed in China in recent years. Its connection and sealing principle is that when the nut is tightened, the ferrule

This classification method is divided by principle, function and structure. It is the most commonly used classification method at home and abroad. It is generally

All the above connection forms use external force to offset the medium pressure and realize sealing. The following describes the connection form of self tightening

(1) Block type: such as gate valve, stop valve, plug valve, ball valve, butterfly valve, needle valve, diaphragm valve, etc. Block valves, also known as