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    Question :
    What is a sentinel valve?
    Category Mechanical Engineering Interview Questions
    Rating (0.2) By 52 users
    Added on 6/20/2011
    Views 521
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    Sentinel valves are simply small relief valves installed in some systems to warn of impending over pressurization. Sentinel valves do not relieve the pressure of the system. If the situation causing the sentinel valve to lift is not corrected, a relief valve (if installed) will lift to protect the system or component. If a relief valve is not installed, action must be taken quickly to secure the piece of equipment or system to reduce the pressure.

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