FOAM - WATER FIRE SUPPRESSION PIPING SYSTEM

Maintains pneumatic pressure on the piping system set to specific limits by controlling a plant air system. a single air compressor, or a nitrogen supply.

The freezing point of solutions in antifreeze shall be tested annually by measuring the specific gravity with a hydrometer or refractometer and adjusting the solutions if necessary. Annual testing must be performed in accordance with NFPA 25/2011.

RED with contrasting BRIGHT ORANGE band or caps. A durable sign that reads: "CHEMICAL FOAM DIRECT TO TANKS" or "3% MECHANICAL FOAM SOLUTION DIRECT TO TANKS", shall be conspicuously posted immediately adjacent to such connections.

RED. A durable sign that reads: "WATER FOR FOAM SYSTEM", shall be conspicuously posted immediately adjacent to such connections.

RED with contrasting BRIGHT ORANGE bands

A sign identifying the location of the sidewalk box housing the sprinkler system control valve shall be conspicuously posted on the exterior wall of the building directly opposite the sidewalk box.

A deficiency that if not corrected, can have an effect on the performance of the fire protection system.

Fire Department Connections must always be accessible. A working space of not less than 36 inches in width, 36 inches in depth and 78 inches in height shall be provided and maintained.

A fire pump with a motor rating not exceeding 30 hp and utilizing a limited service fire pump controller.

A fire pump located at or below street level that supplies the lower 300 feet (91.4m) of a standpipe system or a combined standpipe and sprinkler system.

A fire pump used to boost water supply pressures in a fire protection system where such system uses firefighting foam as an additive.

A fire pump that is located above street level and that receives its water supply from a gravity tank or suction tank.

A fire pump that supplies sprinkler systems only.

A fire pump used to boost water supply pressures in a fire protection system where such system utilizes water misting technology.

Positive pressure or balanced pressure injection are the preferred methods of supplying foam concentrates into the water flowing through the supplying piping.