Flow Switches

Flow Switch for Threaded Plastic Piping, Liquid, 0.5 GPM Switch Point, 50 VA SPST, 3/4 ", NPT Female, ± 10 % Accuracy, PP, 12 " (300mm) Wire L, FS-100 Series, Each

Flow Switch, Paddle, Heavy Duty, Liquid, 4 GPM to 500 GPM, 15 A SPDT, 1 ", NPT Male, ± 1 % Accuracy, 316 SS, 304 SS, Brass, EPDM, Each

Flow Switch, Thermal Dispersion, Gas, 1 FPS to 90 FPS, 1 A SPST Relay, N.O/N.C, Selectable, 3/4 " to 1-1/2 ", NPT Male, ± 5 % Accuracy, PP, PVDF, 10 ' Wire L, FST-320 Series, Each

Flow Switch, Low Cost, Economical, Liquid, 4 GPM to 132 GPM, 26 VA SPST, 1/2 ", NPT Male, Brass, SS, PP, Noryl, FSW300 Series, Each

Flow Switch, Thermal Dispersion, Liquid, 0.04 FPS to 3 FPS, 1 A SPST Relay, N.O/N.C, Selectable, 3/4 " to 1-1/2 ", NPT Male, ± 5 % Accuracy, PVDF, 10 " Wire L, FST-200 Series, Each

Flow Switch for Threaded Plastic Piping, Liquid, 0.25 GPM Switch Point, 50 VA SPST, 3/4 ", NPT Female, ± 10 % Accuracy, PP, 12 " (300mm) Wire L, FS-100 Series, Each

The versatile KOBOLD KSM Plastic Flowmeter delivers reliable flow measurement for aggressive chemicals and corrosive substances with its all-plastic construction featuring no metal components in the fluid path. Available with either durable Polysulfone (for highly corrosive applications) or Trogamid® measuring tubes (for moderately aggressive media), this variable area flowmeter provides ±4% full scale accuracy while withstanding pressures up to 145 PSI and temperatures to 140°F. The device's highly visible red PVDF float and large dual-scale display show both direct flow readings (GPM/SCFM) and percentage values, making monitoring simple across a wide measurement range from 0.06 to 264 GPM for liquids or 0.5 to 400 SCFM for gases. Optional bistable reed contact switches with IP65 protection can be easily added for automated flow control and alarm functionality, with convenient field-adjustable markers ensuring precise setpoint positioning. Featuring robust PVC connections (available in glue socket or NPT threaded options) and chemical-resistant EPDM seals, this shock-resistant instrument provides reliable service in water treatment, chemical processing, laboratory, and other demanding environments where metal flowmeters would quickly deteriorate.

Flow Switch, Trim-to-Size, Paddle, Liquid, 43 Centistokes, SPDT, 1 ", PT, ± 1 % Accuracy, 304 SS, Aluminum, Each

Flow Switch, Thermal Dispersion, Liquid, 0.04 FPS to 3 FPS, 1 A SPST Relay, N.O/N.C, Selectable, 2 " to 12 ", NPT Male, ± 5 % Accuracy, PP, PVDF, 10 " Wire L, FST-200 Series, Each

Flow Switch for 3 " to 10 " Pipe, Industrial, Liquid, 2 FPS to 15 FPS, 15 A SPDT, 1 ", NPT Male, Brass, 316 SS, Phosphor Bronze, EPDM, FSW-40A Series, Each

Flow Switch, Low Cost, Economical, Liquid, 3.5 GPM to 4.4 GPM, 26 VA SPST, 1 ", NPT Female, Brass, FSW300 Series, Each

Flow Switch for 1-1/2 " to 2-1/2 " Pipe, Industrial, Liquid, 2 FPS to 15 FPS, 15 A SPDT, 1 ", NPT Male, Brass, 316 SS, Phosphor Bronze, EPDM, FSW-40A Series, Each