- FireDrop Overview
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FireLoop seismic joint for fire sprinkler systems
The FireLoop seismic joint moves in all directions to protect your fire sprinkler system during a seismic event or building settlement. Installs fast and easy with just to connections and a single hanger.
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Avoid costly mistakes
Flexible drop sizes
Available Lengths:
28-inch
40-inch
48-inch
59-inch
71-inch
Reducers: 1/2-inch and 3/4-inch
Fire drop technical data
Rated Pressure: 200 psi
Max Ambient Temp: 150°
Maximum Sprinkler K-factor for 1/2 inch outlet: 8
Maximum Sprinkler K-factor for 3/4 inch outlet: 14
Suitable for use in Wet & Dry Systems, UL 2443
Minimum Bending Radius:
5 inches (190mm)
Maximum Bends:
71-inch (1800mm): 3 bends
59-inch (1800mm): 3 bends
48-inch (1500mm): 3 bends
40-inch (1200mm): 1 bend
28-inch (610mm): 1 bend
Flexible doesn't mean unbreakable
There are limits placed on flexible hoses for fire sprinkler hoses. UL ratings are based on proper installation, length of the flexible hose, a maximum number of bends, and maximum bend radius.
Exceeding the specified limits will damage the hose, exceed UL ratings, void the warranty on the hose and create the possibility of leaks in the system. And more importantly, possibly prevent the hose from performing its function, allowing water to reach the sprinkler head during a fire.
The images below show how sprinkler hoses have been mistreated and create the potential for leaks and water damage. Bent well beyond the proper bending radius, these hoses should be discarded and replaced with new hose.
