How to Test a Foam Deluge Fire Sprinkler System

Deluge sprinkler systems are notable for their lack of a heat-detecting system, which leaves the sprinklers open and visible. Rather than turn on when the heat sensor is triggered, the system uses a different triggering device, such as a smoke detector, fire alarm or other manual device. As well, a deluge system has no added pressure. Foam systems, which don't use water, are often specifically used in areas with a possibility of high-challenge fires, such as those caused by flammable liquids.

Instructions

- 1
  Locate the triggering mechanism for the sprinkler system. Since deluge sprinklers lack a heat sensor, the system typically has a triggering mechanism, manual or automatic. Determining the triggering mechanism for the system must be done before conducting any test.
- 2
  Activate the triggering system. Common triggers include smoke detectors, heat detectors, optical flame detectors and manual-pull fire alarms. For manual systems simply pull the alarm or turn the sprinkles on. For automatic systems use a small flame or source of smoke (not a cigarette) near the detector to trick the system into activating.
- 3
  Observe the system as it activates. Check that each of the sprinklers work and that the foam spreads sufficiently throughout the area.

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