1. Basic Definition and Structure
A soft sealing flanged concentric butterfly valve (also known as a “center-line butterfly valve”) is a quarter-turn rotary valve designed for on/off or...
Tianjin Tanggu Water-seal Valve Co., Ltd is a leading manufacturer of high-quality valves and fittings. Our products are used in a diverse range of industries, including water treatment, power gene...
TWS Valve Attended the Valve World Asia 2017 Exhibition from September 20- September 21,During the Exhibition,Many of our old Client came and visited us ,Communicate for the long term cooperation,...
Butterfly valves are valves used to regulate or isolate the flow of liquid or gas in a piping system. Among various types of butterfly valves on the market, such as, wafer butterfly valve, lug butt...
From August 23 to 24, 2025, Tianjin Water-Seal Valve Co., Ltd. successfully held its annual outdoor “Team Building Day.” The event took place at two scenic locations in Jizhou District,...
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 ...