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Fire pump station meter by-pass line

Fire pump station meter by-pass line

Fire pump station meter by-pass line

(OP)
Hello,

Is it acceptable to fit a complete fire pump set (2 electric duty pumps, 1 diesel standby pump) discharging into a common discharge manifold with a single combined flow meter by-pass line and pressure relief line back to the storage tank all connected to the common manifold?

RE: Fire pump station meter by-pass line

It is an arrangement that we have used often in the Middle East but it depends where you are and what your regulating Authority may require.

RE: Fire pump station meter by-pass line

This should be acceptable as long as all components and installation conforms to N.F.P.A. 20, Standard for Installation of Fire Pumps.

RE: Fire pump station meter by-pass line

NFPA-20 does not allow this. It is a common mistake  and is seldom caught by the local AHJ. It is common to find this configuration but it does'nt meet code.

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