What should you check when testing a Reduced Pressure Principle - ProProfs Discuss
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What should you check when testing a Reduced Pressure Principle Backflow Preventer?



A. The pressure drop across the 1st check valve Must be 1 psid
B. The pressure differential relief valve is hydraulically dependent & mechanically independent
C. The pressure drop across the #2 check Must be at least 5 psid
D. The pressure in zone 2 (reduced pressure zone) Must exceed supply pressure for the relief valve to discharge

This question is part of Backflow Quiz 5
Asked by Wyatt Williams, Last updated: Jun 28, 2018

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1 Answer

Wyatt Williams

Wyatt Williams

Answered on Jun 29, 2018

The pressure differential relief valve is hydraulically dependent & mechanically independent
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