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 ...
In the 30s, the butterfly valve was invented in United States, introduced to the Japan in the 50s, and was widely used in Japan in the 60s, and it was promoted in China after the 70s. At present, b...
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...
Choosing the right type of valve is crucial when it comes to ensuring your piping system operates smoothly and efficiently. Among the various options available, check valves are a reliable and effe...
Valve assembly is an important stage in the production process. Valve assembly is the process of combining the various parts and components of the valve according to the defined technical premise t...
Butterfly valves play a crucial role in controlling the flow of various liquids and gases. Among different types of butterfly valves, lug butterfly valves and wafer butterfly valves are two widely ...