why is quick closing valves important to in engine
why is quick closing valves important to in engine room machineries ?how are they operated ?
请帮忙给出正确答案和分析,谢谢!
参考解答
正确答案:These are pneumatically actuted valves ,hydraulic valves and hand actuated valves .they are used for the purpose of shutting and closing the valve down in remote position in case of fire or other emergency . In case of fire , a remote operated valve is actuated to supply control air leading to each valve .these valves are equipped with cylinders with rods which provide a means valve locking ,and control air supplied will activate the cylinder disengage the locking mechanism and shutting the valve .
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