Fire Sprinkler Coverage Radius

A fire sprinkler or sprinkler head is the component of a fire sprinkler system that discharges water when the effects of a fire have been detected such as when a predetermined temperature has been exceeded.

Fire sprinkler coverage radius.

A single fire sprinkler can cover an impressively large area with modern fire codes allowing a single head to protect more than 200 square feet in some environments. Wheel loading with asphalt or concrete driving surface. Sprinkler heads must be unobstructed to provide maximum flow to the areas that need it. 18 figure 10 impact of single and multiple obstructions on a k5 6 spray sprinkler operating at 25 psi.

This overlap may seem like a waste at first but it is a very important necessity. The industry benchmark for design and installation of automatic fire sprinkler systems nfpa 13 addresses sprinkler system design approaches system installation and component options to prevent fire deaths and property loss. This is important read it carefully. In buildings protected by properly designed and maintained fire sprinklers over 99.

It was recognized that obstructions can impact sprinkler coverage given the following code sections 6. Fire sprinklers are extensively used worldwide with over 40 million sprinkler heads fitted each year. Commercial and industrial installations differ from residential as do the materials used. Minimum inside turning radius 25 ft.

Minimum capacity 12 500 lbs. Minimum width of fire lane 20 ft except multi family complexes 26 ft. The area watered by each sprinkler must overlap substantially the area watered by the adjacent sprinkler. Extended coverage sprinklers have a water distribution radius of a little over 10 feet so they can be spaced approximately 20 feet apart.

Minimum and maximum distances between the most common sprinkler heads and from heads to walls receive careful attention in nfpa 13. This means they cannot be blocked. Extended coverage light hazard pendent and recessed pendent sprinklers k factor 5 6 model sw 20 and sw 24 extended coverage ordinary hazard horizontal sidewall sprinklers standard response k factor 11 2 model eloc extra large orifice concealed pendent sprinklers extended coverage quick and standard response k factor 11 2 series rfii. Minimum vertical clearance 14 ft.

In these cases extended coverage sprinkler heads can be installed to increase the spacing between heads. Pattern development for standard upright or pendent spray sprinklers national fire protection association. There are two main criteria for determining the location of sprinkler heads. Without this overlap it would be impossible to design sprinkler systems that provided uniform water continue reading sprinkler coverage nozzle.

Fire sprinkler distancing is set by local building codes but prescribed by national and international building associations. Minimum outside turning radius 45 ft except multi family complexes 51 ft. Sprinkler head location and coverage.