This control valve is a weir diaphragm valve and has created a clogging congestion point in the flow system that requires constant maintenance.

这个控制阀是一个堰式隔膜阀，在流体系统中形成一个堵塞点，需要经常进行维护。

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Caution: Do not allow purple primer or solvent cement to migrate into the valve weir and diaphragm area.

警告：不要让紫色底漆或液状粘固剂侵入阀门挡圈和隔膜区域。

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Caution: Do not allow purple primer or solvent cement to migrate into the valve weir and diaphragm area.

警告：要小心谨慎操作，避免紫色底漆或液状粘固剂流回到阀门内的隔膜或密封区域。

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