We attended Valve World Asia 2019 Exhibition in Shanghai From August 28 to August 29, Many old custmers from different countries had a meeting with us about future cooperation , Also some new custo...
(1) The valve does not operate.
The fault phenomenon and its causes are as follows:
1. No source of gas.① The air source is not open, ② due to the water content of the air source ice in winter, res...
Working Principle of Backflow Preventer
TWS backflow preventer is a mechanical device designed to prevent the reverse flow of contaminated water or other media into a potable water supply system or...
After the worm gear gate valve is installed and put into work, it is necessary to pay attention to the maintenance of the worm gear gate valve. Only by doing a good job of daily maintenance and mai...
Butterfly valve is a kind of valve, is installed on a pipe, used to control the circulation of medium in a pipe. Butterfly valve is characterized by simple structure, light weight, including transm...
+ 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 ...
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