Pressure Testing Of Valves - Factory, Suppliers, Manufacturers from China

Pressure Testing Of Valves, , , ,. The product will supply to all over the world, such as Europe, America, Australia,, ,, .

Difference between soft seal butterfly valve and hard seal butterfly valve

Hard seal butterfly valve Hard sealing of butterfly valve refers to that both sides of the sealing pair are made of metal materials or other hard materials. The sealing performance of this kind 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 ...
History of the Development of China's Valve Industry (2)

The initial stage of the valve industry (1949-1959) 01Organize to serve the recovery of the national economy The period from 1949 to 1952 was the period of my country’s national economic reco...
Why do gate valves require upper sealing devices?

When the valve is fully open, a sealing device that prevents the medium from leaking to the stuffing box is called the upper sealing device. When the gate valve, globe valve and throttle valve are ...
The difference between soft and hard seals of valves:

First of all, whether it is a ball valve or a butterfly valve, etc., there are soft and hard seals, take the ball valve as an example, the use of soft and hard seals of ball valves is different, ma...
ECWATECH 2016 of Moscow Russia

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