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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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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Close shutoff valve No.2 then No.1.

关闭关闭阀2号,然后关闭关闭阀1号.

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Close shutoff valve No.2 then shutoff valve No.1.

关闭2号关闭阀,然后关闭1号关闭阀.

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The shutoff valve with cock is to be mounted on inlet side of the backflow preventer.

咨询州和当地规程,确保防回流阀的安装符合有关要求,如地面上适当的高度.

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Petroleum machinery equipment, gas - oil separation pump, vane pump, gas - oil separator, automatic nozzle, emergency shutoff valve.

石油机械设备, 油气分离泵, 叶片泵, 油气分离器, 自动喷嘴, 紧急切断阀.

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Remove all test equipment and open No. 2 shutoff valve of the device.

拆卸所有检测设备,开启装置上的2号关闭阀.

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