System Sensor WFD40 Water Flow Switch Detector

Description:

The System Sensor WFD40 water flow switch detector is used in fire sprinkler monitoring and life safety systems. Commonly installed in wet-pipe sprinkler networks, commercial buildings, industrial facilities, and fire protection systems. Maintenance teams and system integrators use this part for repair, retrofit, expansion, and replacement.

Applications:

The System Sensor WFD40 water flow switch detector is designed to detect water movement in sprinkler piping and transmit alarm signals to fire alarm control panels. It is commonly used in fire suppression systems, warehouse facilities, commercial buildings, and industrial plants where reliable water flow monitoring and alarm activation are required.

Technical Specifications:

• Brand: System Sensor
• Part number: WFD40
• Product type: Water flow switch detector
• Detection method: Vane-type water flow sensing
• Pipe compatibility: 4-inch steel pipe
• Flow sensitivity: 4 to 10 GPM activation range
• Static pressure rating: 450 PSI
• Contact configuration: Dual SPDT switches
• Electrical rating: 10 A, 1/2 HP at 125/250 VAC
• Mounting type: Pipe-mounted installation
• Enclosure rating: NEMA 4
• Installation orientation: Horizontal or vertical mounting
• Application: Wet-pipe fire sprinkler systems

Common Replacements:

• System Sensor WFD40A
• Potter VSR-F
• Reliable VSR-4