Product Description
McDonnell No. FS4-3J Flow Switch
PN: No. FS4-3J
- 1" BSTP,
- SPDT switch,
- general purpose liquid flow switch for up to 160 psi maximum pressure with 1", 2", 3", and 6" stainless steel paddles.
- 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
- Two electrical knock-outs allows connection from either end
- Sensitivity adjusting screw makes flow adjustment easy
- Single pole, double throw snap switch
- Hardened stainless steel bearings minimize friction
- Sealed Monel bellows
- Four stainless steel paddles included - 1", 2", 3" & 6" (25, 50, 80, & 150mm)
- Optional features
- Two SPDT switches to make or break two separate circuits
- Materials of construction suitable for corrosive liquids
- BSPT threads
- Minimum temperature (fluid or ambient) 32°F (0°C)
- Maximum temperature 300°F (149°C)
- Maximum pressure 160 psi (11.3 kg/cm2)
