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The FSW-140 Series rugged inline flow switches offer superior performance. Their fixed set-point and simple design make it a dependable switch. This series is an ideal choice for coolant applications requiring reliable flow detection in HVAC, semiconductor, welding, medical and other industries. The ¼' quick disconnect units have a host of snap-on mating adaptors available to fit most piping requirements.
Housing: Glass reinforced polypropylene
Piston: PPS composite
Spring: 316 stainless steel
8.6 bar (125 psi) @ 21°C (70°F)
3.4 bar (50 psi) @ 100°C (212°F)
Operating Temperature: -18 to 100°C (0 to 212°F)
Set Point Accuracy: 20% of set point
Set Point Differential: 20% maximum
Switch: SPST, 10VA, normally open at no flow
Electrical Termination: 610 mm (24') polymeric leads, 22 AWG
Filtration: 100 micron
Thermoplastic Quick Couplings
Working Pressure: Vacuum to 120 psi (8.3 bar)
Operating Temperature: -40 to 82°C (-40 to 180°F) continuous
Bodies and Valves: Acetal
I nternal Spring: 316 Stainless Steel E xternal Springs, Pin, Latch:
Stainless Steel Seals: Buna, others available
Color: Natural white, others available
Tubing Sizes: ¼ thru 3/8' ID, ¼ and 3/8' OD 6 x 4 mm thru 12 x 8 mm (OD x ID)