Double flange butterfly valve, as a key element in the industrial field, plays an important role in various fluid systems. Its simple structure, light weight, fast opening, fast closing, good seali...
+ Lighter
+ Cheaper
+ Easy installation
- Pipe flanges required
- More difficult to centre
- Not suitable as end valve
In the case of a Wafer-style butterfly valve, the body is annular with a few ...
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...
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...
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