放净阀必须放空到安全位置-放到大气、火炬总管或排放容器中。
Drain valve must be vented to the safe position in the atmosphere, the torch duct or discharge the container.
好像是说对于火炬总管上负荷是基于最大安全阀的负荷来决定的，这是个运用非仪表基准的例外情况。
The instrumented shutdown analysis forms the basis for the Fujian Ethylene Plant loads except for the maximum safety valve load on each flare header, where the non-instrumented basis is applied.
控制阀在污水缸变满时启动泵，并把污水抽进压力总管道。
The controller turns on the pump when the sewage tank is full and pumps the sewage into a force main.
控制阀在污水缸变满时启动泵，并把污水抽进压力总管道。
The controller turns on the pump when the sewage tank is full and pumps the sewage into a force main.
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