System Sensor WFD60N Detector

The System Sensor WFD60N is a vane-type waterflow detector engineered for integration into fire sprinkler systems utilizing 6-inch nominal pipe size. Built for high-performance monitoring, this unit is compatible with Schedule 10 through 40 steel pipe and features a rugged NEMA 4 enclosure, making it suitable for both indoor and outdoor commercial applications. The vane-type flow switch is optimized to trigger when waterflow exceeds 10 GPM, with a mechanical retard feature that effectively filters out pressure surges to prevent nuisance alarms.

For seamless field integration, the WFD60N includes two sets of SPDT (Form C) synchronized switches rated at 10 Amps, allowing for simultaneous activation of local alarms and fire alarm control panels. This detector supports a 450 PSI static pressure rating and can be mounted in both vertical upflow and horizontal configurations. With its sealed retard mechanism and tamper-resistant cover screws, this fire protection flow switch ensures reliable operation in demanding environments without the risk of environmental contamination.

• Versatile Mounting: Supports horizontal or vertical upflow installation on 6" steel piping, providing flexibility in tight riser rooms.
• False Alarm Immunity: The mechanical retard timer utilizes a high-contrast dial for precise adjustment, ensuring stability during system pressure spikes.
• Durable Construction: The NEMA 4 rated enclosure provides superior protection against dust and moisture in industrial settings.
• Simplified Wiring: Features wire-ready terminals and a redesigned terminal block layout to streamline field connections for contractors.
• High Pressure Capacity: Engineered to handle static pressures up to 450 PSI, making it compatible with high-rise and high-pressure wet pipe systems.

Can the WFD60N be used on copper piping?
No, this model is specifically designed for steel pipe schedules 10 through 40. Using it on copper may result in pipe collapse or improper vane calibration.

What is the purpose of the dual SPDT contacts?
The synchronized SPDT switches allow a single detector to signal both a local notification appliance and a master fire alarm control panel (FACP) simultaneously.

Is the retard mechanism field-replaceable?
Yes, the mechanical retard assembly and switch terminal blocks are designed for field replacement, allowing for maintenance without removing the entire housing from the 6-inch pipe.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.