(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...
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...
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...
There are often friends who do not understand the relationship between the specifications of “DN”, “Φ” and “”". Today, I will summarize the relationship between ...
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