Gate valves and butterfly valves in the pipeline are used to play the role of switching, regulating flow. Of course, there is still a method in the selection process of butterfly valves and gate va...
Tips for turning the heating valve on and off
For many families in the north, heating is not a new word, but an indispensable necessity for winter life. At present, there are many different functio...
In valve engineering, the Cv value (Flow Coefficient) of the control valve refers to the volume flow rate or mass flow rate of the pipe medium through the valve per unit time and under the test con...
For a long time, the general gate valve used in the market generally has water leakage or rust, the use of European high-tech rubber and valve manufacturing technology to produce the elastic seat s...
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...
1. Defect characteristics
Unfused refers to the phenomenon that the weld metal is not completely melted and bonded with the base metal or between the layers of the weld metal.
Failure to penetrate ...
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