... flat throttling valve 平面节流阀 a throttling valve 节流 butterfly throttling valve 蝶形节流阀 ...
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A throttling valve core is axially provided with a small throttling hole and an adjusting hole for throttling.
节流阀芯轴向设有节流小孔和调整孔，用于节流。
V-port trim has a more linear throttling curve than plug or ball discs, but none of these trims are recommended for continuous severe throttling which may require using a control valve.
形端口阀内件截止阀比塞形阀瓣或球形阀瓣截止阀具有更加线性的节流曲线，但是，所有这些类型的截止阀都不建议连续用于严格的节流应用中，这种情况可能需要采用控制阀。
Continuous severe throttling applications may require a control valve.
持续严酷的节流应用场合可能需要配置控制阀。
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