China Butterfly Valve and Grooved Butterfly Valve - Manufacturers, Factory, Suppliers from China

China Butterfly Valve and Grooved Butterfly Valve, , , ,. The product will supply to all over the world, such as Europe, America, Australia,, ,, .

TWS Valve Wish You A Merry Chirstmas!

The Chirstmas Day is Approaching~ We TWS Valves International sales department here, Get together and Wish you a Merry Chirstmas and Happy new year! Thanks for your suppor for this year and we Wi...
What should be do during valve installation - Final

Today we continue to talk about valve installation precautions: Taboo 12 The specifications and models of the installed valve do not meet the design requirements. For example, the nominal pr...
TWS’s Structural Characteristics of Flange Butterfly Valve

Body Structure: The valve body of flange butterfly valves is usually made by casting or forging processes to ensure that the valve body has sufficient strength and rigidity to withstand the pressur...
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. ...
Valve selection principles and valve selection steps

1. Valve selection principle: The selected valve should meet the following basic principles. (1) Safety and reliability of petrochemical, power station, metallurgy and other industries require cont...
The difference between OS&Y gate valve and NRS gate valve

1.The stem of the OS&Y gate valve is exposed, while the stem of the NRS gate valve is in the valve body. 2.The OS&Y gate valve is driven by the thread transmission between the valve ...