System Sensor WFD20N 2″ Water Flow Switch – NEMA 4, 450 PSI, UL/FM 2 copper 45 5 years on parts (residential

5 years on parts (residential use)

01 GPM w/ optional setting)

6 GPM at 45°F temperature rise Emissions Ultra-low NOₓ (20 ppm) Fuel Type Natural Gas Power Supply 120V AC (standard outlet) Dimensions 17

Operating Temperature: 32°F to 150°F (0°C to 66°C)

Wall-mounted risers in commercial buildings

System Sensor WFD20N 2″ Water Flow Switch – NEMA 4, 450 PSI, UL/FM 2 copper 45 5 years on parts (residentialSystem Sensor WFD20N 2 Water Flow Switch NEMA 4, 450 PSI The System Sensor WFD20N is a rugged, vane type water flow switch designed for wet pipe fire sprinkler systems. Built with a NEMA 4 enclosure for indoor or outdoor use, it fits 2 Schedule 740 steel pipe and is UL FM listed for high reliability in demanding conditions. Key Features: 2 pipe compatibility (Schedule 740 steel) UL Listed & FM Approved 450 PSI maximum pressure rating Adjustable