平衡截止阀

产品概要
BSR系列平衡截止阀适用于真空、高压作业。“平衡”是指即时在背压大于入口压力的情况下，阀门仍能关闭。
SERIES BSR Balanced shut-off valve for vacuum through high pressure. The "balanced" aspect means that the valve will close even if the back pressure is higher than the inlet pressure.
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