1 Treatment method for increasing pneumatic valve leakage
If the case of the valve spool is worn to reduce the leakage of the valve, it is necessary to clean and remove the foreign body; if the pre...
The purpose of water treatment is to improve water quality and make it meet certain water quality standards.
According to different treatment methods, there are physical water treatment, chemical w...
Overview
Valve is an important product in general machinery. It is installed on various pipes or devices to control the flow of medium by changing the channel area in the valve. Its functions are: ...
The continuous development of the valve industry (1967-1978)
01 Industry development is affected
From 1967 to 1978, due to the great changes in the social environment, the development of the valve ...
Butterfly valve refers to the closing part (valve disc or butterfly plate) as a disc, around the valve shaft rotation to reach the opening and closing of a valve, in the pipe mainly cut off and thr...
The difference between domestic valves and imported valves is mainly reflected in the following aspects:
1. Materials and processes:
Imported valves: usually selected raw materials, such as sta...