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1.Manifold shall have safety pressure relieve valve, pressure regulators, and pressure gauges indicating inlet and outlet pressure, bleed valve (vent valve) and pigtail for cylinder connections.
气体管路需要有安全压力释放阀门、压力调节阀门、压力表来指示气体压力。收藏指正
2.Close shutoff valves and open test cocks No. 2, 3 and 4 to relieve pressure from the body of the valve.
关闭关闭阀，并开启测试旋塞2号、3号和4号，释放阀体内压力。收藏指正
3.Slowly open all ball valves to relieve air and water pressure. Loosen bolts on groove coupler and remove groove couple and cover plate from valve body.
慢慢开启所有球阀，释放空气和水的压力。松开沟槽连接器上的螺栓，从阀体上拆卸沟槽连接器和盖板。收藏指正
4.Slowly open all ball valves to relieve air and water pressure. Loosen bolts on groove coupler and remove groove coupler and cover plate from valve body.
慢慢开启所有球阀，释放空气和水压力。松懈沟槽状联结器上的螺栓，从阀体上拆卸沟槽状联结器和阀盖板。收藏指正
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