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Does PRV require by pass arrangement?

Question asked by istiaque.emcs on Oct 16, 2019
Latest reply on Oct 19, 2019 by istiaque.emcs

Project location: Bangladesh

Pump Capacity: 1500 GPM

Pump Head: 14 bar.

According to code for sprinkler pressure should not exceed 12 bar. So we need to use PRV upto certain height. If each PRV require to use by pass system , we also need to use valve and does that valve need to be supervised?

Could anyone please suggest regarding this as per NFPA?

Thanks In advance.