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  Flow Switch, SPDT, 1" NPT
Flow Switch, SPDT, 1
Click to enlarge
General Purpose Liquid Flow Switch

Allows the system to turn off pumps when there is a domestic all for H/W (Priority delay), or turn pumps on when there is flow in a circuit (Indirect Domestic Heating), as well as many other applications.
    • 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
    – Time delay (5 or 20 seconds)
    – Two SPDT switches to make or break two separate circuits
    – Reinforced paddles
    – Materials of construction suitable for corrosive liquids
    – Fire sprinkler service - Model FS4-3F only
    – 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)


For more information view:
FS251 Tech Sheet(73kb)

Part Number: FS251

Price: $115.64

 
 
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