Fire Protection in Refineries: Api Recommended Practice 2001 Draft Ninth Edition
Fire Protection in Refineries: Api Recommended Practice 2001 Draft Ninth Edition
Fire Protection in Refineries: Api Recommended Practice 2001 Draft Ninth Edition
Table 1
EXAMPLE WATER FLOW RATES FOR MANUAL FIRE FIGHTING1, 2
2
PROCESS AREAS 4,000 to 10,000 gpm Cooling: 0.2 to 0.3 gpm/ft
2
handling flammable (15,000 to 38,000 lpm) (8.2 to 12.3 lpm/m )
liquids or high pressure
2
flammable gases Suppression: 0.3 to 0.5 gpm/ft
2
(12.3 to 20.4 lpm/m )
PROCESS AREAS
2
handling gases or 3,000 to 5,000 gpm 0.20 to 0.30 gpm/ft
2
combustible liquids (11,000 to 19,000 lpm) (8.2 to 12.3 lpm/m )
TANK STORAGE
2
flammable and 0.16 to 0.3 gpm/ ft See API RP 2021 & NFPA 11
2
combustible liquids in (6.5 to 13 l/min-m )
atmospheric tanks
TABLE 2
SUGGESTED RESIDUAL PRESSURES
SYSTEM OR DESIRED RESIDUAL MEASURED AT:
EQUIPMENT ITEM PRESSURE
Calculated sprinkler, water As determined in the system As specified in the calculations,
spray or foam system calculations, generally usually at the base of the system
between 75 and 125 psi riser or the connection to the
(520 to 940 kpa) main.
-Foam Solution Flow Requirement for Full Surface Fire, gallons per
2
minute at varied application rates (in gpm/ft ).