Offered in liquid and gas sensor types, the general purpose flow switch provides reliable low or no-flow detection of relatively clean, non-coating media with one 1A relay output. Liquid examples include water and acetic acid. Available in Polypropylene-Ryton® and PVDF, the short flow sensor is used in pipe or ducting from 1/2” to 1 1/2”, and the long flow sensor is used in 2” and up. The flow switch set point may be adjusted from 0.04 to 3 fps in liquids, or 1 to 90 fps in gases as a low-flow alarm. The flow sensor is best applied in applications with relatively constant temperature.


  • Rugged PP-Ryton® or PVDF sensor for corrosive liquids and gases
  • Adjustable set point with LED for flow or no-flow status indication
  • 60VA relay selectable NO or NC via power supply wiring polarity
  • Solid state sensor is not damaged by over-ranging flow velocities


P/N Description From
FT10-1305 Liquid, PP, short, 3/4″ NPT $240.00
FT10-1325 Liquid, PP, short, 3/4″ G $260.00
FT10-1405 Liquid, PP, long, 3/4″ NPT $260.00
FT10-1425 Liquid, PP, long, 3/4″ G $280.00
FT10-5305 Liquid, PVDF, short, 3/4″ NPT $400.00
FT10-5325 Liquid, PVDF, short, 3/4″ G $440.00
FT10-5405 Liquid, PVDF, long, 3/4″ NPT $440.00
FT10-5425 Liquid, PVDF, long, 3/4″ G $480.00
GT10-1305 Gas, PP, short, 3/4″ NPT $240.00
GT10-1325 Gas, PP, short, 3/4″ G $260.00
GT10-1405 Gas, PP, long, 3/4″ NPT $260.00
GT10-1425 Gas, PP, long, 3/4″ G $280.00
GT10-5305 Gas, PVDF, short, 3/4″ NPT $400.00
GT10-5325 Gas, PVDF, short, 3/4″ G $440.00
GT10-5405 Gas, PVDF, long, 3/4″ NPT $440.00
GT10-5425 Gas, PVDF, long, 3/4″ G $480.00



Set point range: FT10: 0.04 to 3 fps (0.012 to 0.91 mps), GT10: 1 to 90 fps (0.3 to 27 mps)

Factory set point: FT10: 2fps (.06 mps), GT10: 10 fps (3 mps)

Repeatability: ± 0.5% of set point @ fixed temperature

Response time: 1-10 seconds

Set point adjust.: Potentiometer

Viscosity range: FT10: 1-200 centipoise, GT10: N/A

LED indication: Flow status

Supply voltage: 14-36 VDC

Consumption: 70 mA maximum

Contact type: (1) SPST relay

Contact rating: 60 VA, 1A maximum

Contact output: Selectable NO / NC

Process temp.: F: 32° to 140°, C: 0° to 60°

Ambient temp.: F: -40° to 140°, C: -40° to 60°

Pressure: 150 psi (10 bar) @ 25º C, derated @ 1.667 psi (0.113 bar) per ºC above 25º C

Sensor rating: NEMA 4X (IP65)

Wetted material: -1XX5: PP-Ryton®, -5XX5: PVDF

Cable jack. mat.: -1XX5: PP, -5XX5: FEP

Cable type: 4-conductor, shielded #22 AWG

Cable length: 10’ (3m)

Process mount: 3/4” NPT (3/4” G/R)

Mount. gasket: Viton®

Classification: General purpose

Compliance: CE