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 continuo...
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 ...
(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...
Soft seal gate valve is a valve widely used in water supply and drainage, industry, construction and other fields, mainly used to control the flow and on-off of the medium. The following points nee...
Material Selection
Low-End Valves
Body/Disc Materials: Typically use low-cost metals like cast iron or unalloyed carbon steel, which may lack corrosion resistance in harsh environments.
Sealing ...
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...
Global Safety Butterfly Valve Related Videos From Youtube