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Flow Switches

133 Results Found that Include 133 Products

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Results per page: 16 | 32 | 48
General Purpose Flow Switch,NEMA1
  • MCDONNELL & MILLER
  • General Purpose Flow Switch, NEMA1General Purpose Flow Switch,NEMA1
  • Item # 2RUL3
  • Mfr. Model # FS251
  • General Purpose Switch, Min. Flow Rate 5.8 GPM, Max. Flow GPM 131, Connection Size (In.) 1 NPT, Switch...More

Liquid Flow Switch,Piston,SPST,10VA
  • GEMS SENSORS
  • Liquid Flow Switch, Piston, SPST, 10VALiquid Flow Switch,Piston,SPST,10VA
  • Item # 1ALV1
  • Mfr. Model # FS-380P 209876
  • Liquid Flow Switch, Piston, Flow Rate 0.15 GPM, Connection Size (In.) 3/8 MNPT, Max. Ambient Temp. 212 F,...More

Switch,Liquid Flow
  • MCDONNELL & MILLER
  • Switch, Liquid FlowSwitch,Liquid Flow
  • Item # 4RC67
  • Mfr. Model # FS5-3/4
  • General Purpose Switch, Min. Flow Rate 1.5 GPM, Max. Flow GPM 15, Connection Size (In.) 3/4 FNPT, Switch...More

Flow Switch
Flow Switch
Switch,Liquid Flow
  • MCDONNELL & MILLER
  • Switch, Liquid FlowSwitch,Liquid Flow
  • Item # 4RC70
  • Mfr. Model # FS7-4
  • Industrial/Heavy-duty Liquid Flow Switch, Min. Flow Rate 4.8 GPM, Max. Flow GPM 7.7, Connection Size (In.) 1...More

Liquid Flow Switch,Piston,SPST,20VA
  • GEMS SENSORS
  • Liquid Flow Switch, Piston, SPST, 20VALiquid Flow Switch,Piston,SPST,20VA
  • Item # 1ALV9
  • Mfr. Model # FS-380 168433
  • Liquid Flow Switch, Piston, Flow Rate 0.5 GPM, Connection Size (In.) 3/8 MNPT, Min. Ambient Temp. -20 F, Max....More

Switch,Flow
  • MCDONNELL & MILLER
  • Switch, FlowSwitch,Flow
  • Item # 1RF64
  • Mfr. Model # FS6-3/4
  • Heavy-duty, High Sensitivity Switch, Min. Flow Rate 0.12 GPM, Max. Flow GPM 2.5, Connection Size (In.) 3/4...More

Flow Switch, 3.5 to 600 fpm,SPDT
  • TACO
  • Flow Switch, 3.5 to 600 fpm, SPDTFlow Switch, 3.5 to 600 fpm,SPDT
  • Item # 29YM34
  • Mfr. Model # IFSWSBF-1
  • Flow Switch, Industrial, Max. HP 1/3 HP, 1 Phase, 60 Hz, Min. Flow Rate (GPM) 4.5, Max. Flow GPM 1500, Flow...More

Flow Switch, 3.5 to 600,SPDT
  • TACO
  • Flow Switch, 3.5 to 600, SPDTFlow Switch, 3.5 to 600,SPDT
  • Item # 29YM30
  • Mfr. Model # IFS01BF-1
  • Flow Switch, Industrial, Max. HP 120VAC, 1/8 HP, 240VAC, 1/4 HP, 1 Phase, 60 Hz, Min. Flow Rate (GPM) 4.5,...More

Liquid Flow Switch,Paddle,SPDT,20VA
  • GEMS SENSORS
  • Liquid Flow Switch, Paddle, SPDT, 20VALiquid Flow Switch,Paddle,SPDT,20VA
  • Item # 1AKZ4
  • Mfr. Model # FS-550 29609
  • Liquid Flow Switch, Paddle, Flow Rate 15-48 GPM, Connection Size (In.) 1 MNPT, Min. Ambient Temp. -30 F, Max....More

Switch,Air Flow
  • MCDONNELL & MILLER
  • Switch, Air FlowSwitch,Air Flow
  • Item # 4RC76
  • Mfr. Model # AF-1
  • Switch Enclosure NEMA1, Min. Ambient Temp. 32 F, Max. Ambient Temp. 300 F, Operating Velocity Range 910 to...More

Switch,Flow
  • MCDONNELL & MILLER
  • Switch, FlowSwitch,Flow
  • Item # 1RF63
  • Mfr. Model # FS5-1
  • 1/3 HP, General Purpose, Electrically Operated, Max. HP -, - Phase, - Hz, Min. Flow Rate (GPM) 1.5, Max. Flow...More

Liquid Flow Switch,Shuttle,SPDT,20VA
  • GEMS SENSORS
  • Liquid Flow Switch, Shuttle, SPDT, 20VALiquid Flow Switch,Shuttle,SPDT,20VA
  • Item # 1ALD5
  • Mfr. Model # FS-200 26615
  • Liquid Flow Switch, Shuttle, Flow Rate 1.0 to 6.0 GPM, Connection Size (In.) 1 FNPT, Min. Ambient Temp. -20...More

General Purpose Flow Switch,NEMA4
  • MCDONNELL & MILLER
  • General Purpose Flow Switch, NEMA4General Purpose Flow Switch,NEMA4
  • Item # 2RUL4
  • Mfr. Model # FS254
  • General Purpose Switch, Min. Flow Rate 5.8 GPM, Max. Flow GPM 131, Connection Size (In.) 1 NPT, Switch...More

Flow Protector,Booster Pump,230 V
  • DAYTON
  • Flow Protector, Booster Pump, 230 VFlow Protector,Booster Pump,230 V
  • Item # 1DGZ8
  • Mfr. Model # 1DGZ8
  • Flow Protector, Max. HP 2, 1 Phase, 50/60 Hz, Min. Flow Rate 1 GPM, Connection Size (In.) 1 FNPT Slip PVC,...More

Flow Switch
Flow Switch
Flow Switch
Liquid Flow Switch,Shuttle,SPST, NO,20VA
  • GEMS SENSORS
  • Liquid Flow Switch, Shuttle, SPST, NO, 20VALiquid Flow Switch,Shuttle,SPST, NO,20VA
  • Item # 1AKZ8
  • Mfr. Model # FS-500 170231
  • Liquid Flow Switch, Shuttle, Flow Rate 0.25 GPM, Connection Size (In.) 3/4 FNPT, Max. Ambient Temp. 212 F,...More

Liquid Flow Switch,Shuttle,SPDT,20VA
  • GEMS SENSORS
  • Liquid Flow Switch, Shuttle, SPDT, 20VALiquid Flow Switch,Shuttle,SPDT,20VA
  • Item # 1ALD6
  • Mfr. Model # FS-200 26616
  • Liquid Flow Switch, Shuttle, Flow Rate 5.0 to 15.0 GPM, Connection Size (In.) 1 FNPT, Min. Ambient Temp. -20...More

Liquid Flow Switch,Rotor,SPDT,35mA/95mA
  • GEMS SENSORS
  • Liquid Flow Switch, Rotor, SPDT, 35mA/95mALiquid Flow Switch,Rotor,SPDT,35mA/95mA
  • Item # 1AMB2
  • Mfr. Model # RFS 155425
  • Liquid Flow Switch, Rotor, Flow Rate 0.1 to 5.0 GPM, Connection Size (In.) 1/4 FNPT, Min. Ambient Temp. -20...More

Switch,Flow
  • MCDONNELL & MILLER
  • Switch, FlowSwitch,Flow
  • Item # 1RF65
  • Mfr. Model # FS6-W-3/4
  • High Sensitivity Switch, Min. Flow Rate 0.12 GPM, Max. Flow GPM 2.5, Connection Size (In.) 3/4 NPT, Switch...More

Liquid Flow Switch,Piston,SPST,20VA
  • GEMS SENSORS
  • Liquid Flow Switch, Piston, SPST, 20VALiquid Flow Switch,Piston,SPST,20VA
  • Item # 1ALG2
  • Mfr. Model # FS-927 70820
  • Liquid Flow Switch, Piston, Flow Rate 0.1 GPM, Connection Size (In.) 1/4 FNPT, Min. Ambient Temp. -20 F, Max....More

Liquid Flow Switch,Rotor,SPDT,35mA/95mA
  • GEMS SENSORS
  • Liquid Flow Switch, Rotor, SPDT, 35mA/95mALiquid Flow Switch,Rotor,SPDT,35mA/95mA
  • Item # 1AMB3
  • Mfr. Model # RFS 155485
  • Liquid Flow Switch, Rotor, Flow Rate 1.5 to 20.0 GPM, Connection Size (In.) 1/2 FNPT, Min. Ambient Temp. -20...More

Liquid Flow Switch,Rotor,SPDT,35mA/95mA
  • GEMS SENSORS
  • Liquid Flow Switch, Rotor, SPDT, 35mA/95mALiquid Flow Switch,Rotor,SPDT,35mA/95mA
  • Item # 1AMB7
  • Mfr. Model # RFS 181688
  • Liquid Flow Switch, Rotor, Flow Rate 8.0 to 60.0 GPM, Connection Size (In.) 1 FNPT, Min. Ambient Temp. -20 F,...More

Switch,Liquid Flow
  • MCDONNELL & MILLER
  • Switch, Liquid FlowSwitch,Liquid Flow
  • Item # 4RC69
  • Mfr. Model # FS6-W-1
  • High Sensitivity Switch, Min. Flow Rate 0.12 GPM, Max. Flow GPM 2.5, Connection Size (In.) 1 NPT, Switch...More

Liquid Flow Switch, 0.5 GPM, NO
  • GEMS SENSORS
  • Liquid Flow Switch, 0.5 GPM, NOLiquid Flow Switch, 0.5 GPM, NO
  • Item # 4JPH9
  • Mfr. Model # FS-150 NO 0.5GPM
  • Liquid Flow Switch, Piston, Flow Rate 0.5 GPM, Connection Size (In.) 1/2 MNPT, Switch Enclosure...More

Liquid Flow Switch,Paddle,SPDT,20VA
  • GEMS SENSORS
  • Liquid Flow Switch, Paddle, SPDT, 20VALiquid Flow Switch,Paddle,SPDT,20VA
  • Item # 1AKZ6
  • Mfr. Model # FS-550 29608
  • Liquid Flow Switch, Paddle, Flow Rate 15-48 GPM, Connection Size (In.) 1 MNPT, Min. Ambient Temp. -30 F, Max....More

Liquid Flow Switch,Piston,SPST,10VA
  • GEMS SENSORS
  • Liquid Flow Switch, Piston, SPST, 10VALiquid Flow Switch,Piston,SPST,10VA
  • Item # 1ALV3
  • Mfr. Model # FS-380P 197082
  • Liquid Flow Switch, Piston, Flow Rate 0.5 GPM, Connection Size (In.) 3/8 MNPT, Max. Ambient Temp. 212 F, Max....More

Flow Switch,,5 cm/sec,1/2 In FNPT
  • GEMS SENSORS
  • Flow Switch, , 5 cm/sec, 1/2 In FNPTFlow Switch,,5 cm/sec,1/2 In FNPT
  • Item # 20X863
  • Mfr. Model # 20X863
  • Flow Switch, Thermal Dispersion, Flow Rate 5 cm/sec, Connection Size 1/2 In FNPT, Max. Ambient Temp. 140...More

Flow Switch, 3.5 to 600 fpm,SPDT
  • TACO
  • Flow Switch, 3.5 to 600 fpm, SPDTFlow Switch, 3.5 to 600 fpm,SPDT
  • Item # 29YM40
  • Mfr. Model # IFSWSBR-1
  • Flow Switch, Industrial, Max. HP 1/3 HP, 1 Phase, 60 Hz, Min. Flow Rate (GPM) 4.5, Max. Flow GPM 1500, Flow...More

Results per page: 16 | 32 | 48

An efficient flow switch from Grainger can accurately monitor the flow of air, steam or liquid, then send a signal to a pump to turn itself on or itself shut off. Liquid flow switches can be used to help regulate systems such hydronic heating, plumbing, water cooling equipment, liquid transfer, water treatment and more. Air flow switches can be used to help operate cleanroom filter systems, duct type heating, air ventilating and more. Shop Grainger for dependable flow switches!

Note: Product availability is real-time basis and adjusted continuously. The product will be reserved for you when you complete your order. More