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Flow Switch, SPDT, 1" NPT |
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Click to enlarge
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General Purpose Liquid Flow Switch
Allows the system to turn off pumps when there is a domesic 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:
 FS4-3 Tech Sheet(73kb)
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