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What's the purpose of Alarm check valve using in Sprinkler system?

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Fire Fighting
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Question added by Syed Mohamed Mydeen Lebbai , NDT INSPECTOR , ARUDRA ENGINEERS PVT LTD DESINGNATION
Date Posted: 2018/02/01
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Fayez Ghabboon
by Fayez Ghabboon , Senior Mechanical Engineer , ERGA Saudi Lebanese Company

To avoid unwanted alarms via retard chamber caused by fluctuating pressures .

Usually , other flow detection devices can not distinguish between actual flow and pressure fluctuation and detect flow in both cases . 

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