Fire Sprinkler Tank Sizing

Electrical feeds to fire pump controllers must have a two hour fire rating.

Fire sprinkler tank sizing. Tanks must be sized to provide enough water to control or suppress a fire in the building and water levels must be checked and maintained. Improper tank size location or plumbing layout may reduce the effectiveness of the water supply creating liability and possible occupancy issues. The average fire sprinkler system requires seven pounds per square inch psi of water pressure to operate effectively. Underground fiberglass fire protection tanks are kept out of visible sight consume less property and provide more security from external factors.

Pumps must maintain a positive suction pressure at the suction flange. Fire pumps can t be used as pressure maintenance pumps. Fire sprinkler guide to fire sprinklers in the international building code 2015 edition. Always contact your fire chief and local public building officials before moving ahead with a storage tank project involving fire sprinklers or hydrants.

Water levels are critical for fire sprinkler systems. If a residential home water system doesn t meet the psi needs of the fire sprinkler system called fire flow a water storage solution may be needed to obtain a building permit. Most fire departments approve fiberglass water tanks for fire protection systems. Horizontal elbows or tees upstream of a fire pump must be 10 pipe diameters from the suction flange on a split case fire pump.

Calculate minimum flow from the mrh with the sprinkler minimum pressure and k factor. Calculate the minimum flow given the system design density and sprinkler head area.