HYDROSTATIC TESING OF FIRE PUMP SUCTION PIPING

[DTR]

Hi All,

Could someone please advise if there any NFPA requirements for Hydrostatic Pressure Testing of the Fire Pump Suction Piping?

Is it subject to the same requirements as the "system side"?

I am aware of the code requirements regarding test pressures in NFPA13, but do these apply to the suction piping as this would usually only see the static gain from the storage tank and not working pressure?

Any advice or guidance would be appreciated.

Thanks

DTR

 

[cdafd]

YES

nfpa 20 2007:

14.1.1.2 Flushing shall occur prior to hydrostatic test.
14.1.2 Hydrostatic Test.
14.1.2.1 Suction and discharge piping shall be hydrostatically tested at not less than 200 psi (13.8 bar) pressure, or at 50 psi (3.4 bar) in excess of the maximum pressure to be maintained in the system, whichever is greater.
14.1.2.2 The pressure required in 14.1.2.1 shall be maintained for 2 hours.
14.1.3* The installing contractor shall furnish a certificate for flushing and hydrostatic test prior to the start of the fire pump field acceptance test.