1, quick and easy opening and closing, effort, fluid resistance, you can often operate.
2, simple structure, small size, short structure length, small size, light weight, suitable for large diameter valves.
3, you can transport the mud, the liquid accumulated in the pipe port at least.
4, under low pressure, can achieve a good seal.
5, adjust the performance.
6, fully open seat passage effective circulation area larger, less fluid resistance.
7, the opening and closing torque smaller, due to the disc on both sides of the shaft by the same basic role of the medium, resulting in the opposite direction of torque, so ho less effort.
8, sealing surface materials generally use rubber, plastic, so low pressure sealing performance.
9, easy to install.
10, flexible operation effort, choose manual, electric, pneumatic, hydraulic mode.
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