A.Gate valve installation
Gate valve, also known as gate valve, is a valve that uses a gate to control the opening and closing, and adjusts the pipeline flow and opens and closes the pipeline by ch...
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 ...
Hard seal butterfly valve
Hard sealing of butterfly valve refers to that both sides of the sealing pair are made of metal materials or other hard materials. The sealing performance of this kind of ...
Fluoroplastic lined corrosion-resistant butterfly valve is to place polytetrafluoroethylene resin (or profile processed) on the inner wall of steel or iron butterfly valve pressure-bearing parts or...
The sealing surface of steel valves (DC341X-16 Double flanged eccentric butterfly valve) is generally manufactured by (TWS valve )surfacing welding. The materials used for valve surfacing are divi...