General Description

The System Sensor WFD series is compatible with schedule 10 through 40 steel pipe, sizes 50mm – 200mm (2” – 8”), and can be mounted in a vertical or horizontal position.

Product Description

The WFD Series water flow detectors consists of a rugged, NEMA 4-rated enclosure. The water flow detector is designed for both indoor and outdoor use, temperature range, from 0°C to 49°C (32°F to 120°F.)
UL-listed models are equipped with tamper-resistant cover screws to prevent unauthorised entry. Inside, two sets of SPDT (Form C) synchronized switches are enclosed in a durable terminal block.
The WFD series incorporates a mechanical time delay feature, which minimizes the risk of false alarm due to pressure surges or air trapped in the fire sprinkler system.
The WFD series is designed for accuracy and repeatability. The detector also offers improved performance during vibration in riser applications where detectors are exposed to a large in rush of water.