Group 31 compact valve actuators are designed for coupling to small quarter-turn ball and butterfly valves.

该小型阀门执行器专为小回转球阀，蝶阀设计的。

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Pneumatic V-ball valve is a right angle turn structure of the advanced control valve with positioner supporting the use of proportional control can be achieved;

进口气动V型球阀是一种直角回转结构的高级控制阀，它与阀门定位器配套使用，可实现比例调节；

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