**Brand Positioning:**
TWS is a leading manufacturer of high-quality industrial valves, specializing in soft-sealed butterfly valves, flanged centerline butterfly valves, flanged eccentric b...
Leading Intelligence, Shaping Water Future—TWS VALVE Shines at 2023~2024 International Valve & Water Technology Expo
From 15th to 18th, Nov., 2023, Tianjin Tanggu Water-seal valve Co.,ltd made ...
Butterfly valve refers to the closing part (valve disc or butterfly plate) as a disc, around the valve shaft rotation to reach the opening and closing of a valve, in the pipe mainly cut off and thr...
The connection between the valve and the pipe
The way in which the valve is connected to the pipe
(1) Flange connection: Flange connection is one of the most common pipe connection methods. Gaskets...
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. Clean the sealing surface of the butterfly valve and the dirt in the pipeline.
2. The inner port of the flange on the pipeline must be aligned and press the rubber sealing ring of the butterfly ...