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 ...
TWS Valve will attend the 2018 PCVEXPO Exhibtion in Russia
The 17th International Exhibition PCVExpo / Pumps, Compressors, Valves, Actuators and Engines.
Time: 23 – 25 October 2018 • Mosc...
I. Principles for Selecting Butterfly Valves
1. Structure type selection
Center butterfly valve (center line type): The valve stem and butterfly disc are centrally symmetrical, with simple structur...
WCB, a carbon steel casting material conforming to ASTM A216 Grade WCB, undergoes a standardized heat treatment process to achieve the required mechanical properties, dimensional stability, and res...
Flange butterfly valve is mainly used in industrial production pipeline, its main role is to cut off the circulation of medium in the pipeline, or adjust the size of medium flow in the pipeline. Fl...
Valves are an important component of industrial piping systems and play an important role in the production process.
Ⅰ. The main function of the valve
1.1 Switching and cutting off media: gate valv...
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