General Purpose Liquid Flow Switch, Series FS250

FS250 General-Purpose, Liquid Flow Switches, the Series FS250 – FS251 (NEMA1 version), and FS254 (NEMA4 version). These flow switches incorporate key changes to address customer expressed needs of greater reliability and lower flow sensing capabilities in a general purpose flow switch.

Features and Benefits

Universal design serves the widest variety of applications
For starting or stopping electrically operated equipment such as signal lights, alarms, motors, automatic burners, metering devices and others.
Replacement for common flow switches from Johnson/Penn, Potter/Taco, Watts, Hydrolevel and other manufacturers.
1″ NPT Connection
Two electrical knock-outs allows connection from either end
Sensitivity adjusting screw makes flow adjustment easy
Single pole, double throw snap switch
EPDM O-ring sealed
Four stainless steel paddles included -1″, 2″, 3″ & 6″ (25, 50, 80, & 150mm)
Minimum temperature (fluid or ambient) 32°F (0°C)
Maximum temperature 227°F (107°C)
Maximum pressure 160 psi (11.3 kg/cm2)
Models
FS251 – NEMA 1 enclosure
FS254 – NEMA 4 enclosure