To test for a leaky # 2 shutoff, use the following procedure.

要检测泄漏的2 号 关闭阀, 请采用下列程序.

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It consistently out - performs conventional bronze gate valves by a wide margin.

可以肯定,关闭阀在性能上远远胜过普通的青铜闸阀.

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After operating from high temperature, the Shutoff must be manually reset ( opened ).

在高温操作后, 关闭阀必须人工重置 ( 开启 ).

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Slowly unscrew bleed screw on SVB ( about three turns ).

慢慢放松关闭阀B上 的排气螺丝 ( 大约三圈 ).

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Gate valves serve as efficient stop valves with flow in either direction.

闸阀可作为流体双向有效的关闭阀.

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To test for a leaky No.2 shutoff, use the following procedure.

为了检测2号关闭阀的泄漏率, 请采用下列程序.

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Remove vent hose from test cock # 1, open shutoff # 1.

从测试旋 塞 1号上拆卸排气软管, 开启 关闭阀 1号.

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Close shut - off valves up and downstream of the valve.

关闭阀门上下游的关闭阀.

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Slowly open upstream shutoff and allow the backflow preventer to fill slowly.

慢慢开启上游关闭阀,让防回流阀慢慢注水.

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The test cock is on the inlet side of the shutoff valve.

测试旋塞位于关闭阀的进口一侧上.

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It'should be located close to the water heater and easily accessible.

这个关闭阀应该位于靠近热水器的地方,并且容易靠近操作.

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Attach hoses as shown. Bleed air from kit, close No. 2 shutoff.

如图所示接上软管. 从组件上排放空气, 关闭2号关闭阀.

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Close shutoff valves No.1 and No.2.

关闭1号关闭阀和2号关闭阀.

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No downstream shutoff valves are allowed.

不允许有下游关闭阀.

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Purpose : To test shutoff valve No.2 for tightness.

目的: 检测关闭阀2号的紧密度.

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