What is “inch”: Inch (“) is a common specification unit for the American system, such as steel pipes, valves, flanges, elbows, pumps, tees, etc., such as the specification is 10...
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 ...
How to choose flanged concentric butterfly valve?
Flanged butterfly valves are mainly used in industrial production pipelines. Its main function is to cut off the flow of medium in the pipeline, or...
1. Diagnose the cause of the leak
First of all, it is necessary to accurately diagnose the cause of the leak. Leaks can be caused by a variety of factors, such as frayed sealing surfaces, de...
The valve continuously maintains and completes the given functional requirements within a certain working time, and the performance of maintaining the given parameter value within the specified ran...
Sealing is to prevent leakage, and the principle of valve sealing is also studied from leakage prevention. There are many factors that affect the sealing performance of butterfly valves, mainly inc...