System Sensor's WFD series is
compatible with schedule 10 through 40 steel pipe,
sizes 2" through 8", and can be mounted
in a vertical or horizontal position.The WFD series
consists of a rugged, NEMA 4 rated enclosure.
Designed for both indoor and outdoor use, the
WFD series operates across a wide temperature
range, from 32°F to 120°F. The WFD series
incorporates a mechanical retard feature, which
minimize the risk of false alarm due to pressure
surges or air trapped in the sprinkler system.
In addition, the mechanical retard's unique sealed
design is immune to dust and other contaminants.
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