GEMS SENSORS Flow Switches

Stainless-steel, brass, bronze, polypropylene and Ryton flow switches designed to control the flow of liquids, gases or steam. Feature a maximum fluid temperature of 300 degrees F, and can withstand a maximum pressure of 2000 psi

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Gems Sensors flow switches monitor the flow rate and pressure of liquids, air or other gaseous media through a duct, system or loop.
GEMS SENSORS -

Flow Switch 40 Cm/sec

StyleModelConnection SizeFlow RatePrice (inc. VAT)
A230500-3-51 FNPT5 cm/sec£709.36
A230500-3-401 FNPT40 cm/sec£676.88
A230500-4-51-1/2 FNPT5 cm/sec£709.36
A230500-4-401-1/2 FNPT40 cm/sec£778.35
A230500-1-401/2 FNPT40 cm/sec-
RFQ
A230500-2-53/4 FNPT5 cm/sec£676.88
A230500-2-403/4 FNPT40 cm/sec£644.92
GEMS SENSORS -

FS-150Series Flow Switch

StyleModelFlow RateSwitch TypePrice (inc. VAT)
AFS-150 NO 0.5GPM0.5 gpmSPST, Normally Open @ No Flow£186.33
AFS-150 NC 0.5GPM0.5 gpmSPST, Normally Closed @ No Flow£186.33
AFS-150 NC 1.0GPM1 gpmSPST, Normally Closed @ No Flow£172.53
AFS-150 NO 1.0GPM1 gpmSPST, Normally Open @ No Flow£179.74
AFS-150 NO 2.0GPM2 gpmSPST, Normally Open @ No Flow£176.86
AFS-150 NO 3.0GPM3 gpmSPST, Normally Open @ No Flow£186.33
GEMS SENSORS -

FS-4 Series Flow Switch

StyleModelFlow RatePrice (inc. VAT)
AFS-4 1223520.1 gpm£199.38
AFS-4 1223540.5 gpm£205.44
AFS-4 1223530.25 gpm£215.32
AFS-4 1223550.75 gpm£183.15
AFS-4 1223561 gpm£191.14
GEMS SENSORS -

FS-380 Series Flow Switch

StyleModelBody MaterialContact RatingFlow RateMaterialMax. Ambient Temp.Max. Fluid Temp.Max. PressurePrice (inc. VAT)
AFS-380 168435Brass20VA1.5 gpmBrass, PPS Composite, Epoxy, SS, Fluorocarbon275 F275 F1500 psi£227.77
AFS-380 168434Brass20VA1 gpmBrass, PPS Composite, Epoxy, SS, Fluorocarbon275 F275 F1500 psi£215.71
AFS-380 168432Brass20VA0.25 gpmBrass, PPS Composite, Epoxy, SS, Fluorocarbon275 F275 F1500 psi£213.04
AFS-380 181130Brass20VA0.15 gpmBrass, PPS Composite, Epoxy, SS, Fluorocarbon275 F275 F1500 psi£227.77
AFS-380 178353Brass20VA2 gpmBrass, PPS Composite, Epoxy, SS, Fluorocarbon275 F275 F1500 psi£227.77
AFS-380 168433Brass20VA0.5 gpmBrass, PPS Composite, Epoxy, SS, Fluorocarbon275 F275 F1500 psi£209.99
BFS-380P 209876Polypropylene10VA0.15 gpmPolypropylene, PPS Composite, SS, Fluorocarbon212 F212 F125 psi£106.17
BFS-380P 197082Polypropylene10VA0.5 gpmPolypropylene, PPS Composite, SS, Fluorocarbon212 F212 F125 psi£106.17
BFS-380P 197083Polypropylene10VA1 gpmPolypropylene, PPS Composite, SS, Fluorocarbon212 F212 F125 psi£112.89
BFS-380P 197081Polypropylene10VA0.25 gpmPolypropylene, PPS Composite, SS, Fluorocarbon212 F212 F125 psi£106.17
BFS-380P 197085Polypropylene10VA2 gpmPolypropylene, PPS Composite, SS, Fluorocarbon212 F212 F125 psi£112.89
BFS-380P 197084Polypropylene10VA1.5 gpmPolypropylene, PPS Composite, SS, Fluorocarbon212 F212 F125 psi£106.17
CFS-380 179996Stainless Steel20VA2 gpmSS, PPS Composite, Epoxy, Fluorocarbon275 F275 F1500 psi£552.08
CFS-380 179992Stainless Steel20VA0.25 gpmSS, PPS Composite, Epoxy, Fluorocarbon275 F275 F1500 psi£577.65
CFS-380 179993Stainless Steel20VA0.5 gpmSS, PPS Composite, Epoxy, Fluorocarbon275 F275 F1500 psi£497.20
CFS-380 193482Stainless Steel20VA0.15 gpmSS, PPS Composite, Epoxy, Fluorocarbon275 F275 F1500 psi£557.66
CFS-380 179995Stainless Steel20VA1.5 gpmSS, PPS Composite, Epoxy, Fluorocarbon275 F275 F1500 psi£526.78
StyleModelBody MaterialFlow RateMaterialMax. Fluid Temp.Price (inc. VAT)
AFS-926 26938Brass50 cc/minBrass, Polysulfone, SS, Viton, Epoxy225 F£496.93
AFS-926 26941Brass150 cc/minBrass, Polysulfone, SS, Viton, Epoxy225 F£496.93
AFS-926 26942Brass200 cc/minBrass, Polysulfone, SS, Viton, Epoxy225 F£471.61
AFS-926 26939Brass100 cc/minBrass, Polysulfone, SS, Viton, Epoxy225 F£471.61
AFS-926 26951Stainless Steel50 cc/minSS, Viton, Epoxy300 F£807.62
AFS-926 26952Stainless Steel100 cc/minSS, Viton, Epoxy300 F£807.62
AFS-926 26956Stainless Steel300 cc/minSS, Viton, Epoxy300 F£770.63
GEMS SENSORS -

Liquid Flow Switch

StyleModelBody MaterialConnection SizeContact RatingFlow RateMaterialMax. Ambient Temp.Max. Fluid Temp.Max. PressurePrice (inc. VAT)
ARFS 156268Brass1/2 FNPT35mA/95mA1.5 to 20 gpmBrass, Ceramic, PPS Composite, Polysulfone, Viton150 F212 F200 psi£547.19
ARFS 156265Brass1/4 FNPT35mA/95mA0.1 to 5 gpmBrass, Ceramic, PPS Composite, Polysulfone, Viton150 F212 F200 psi£562.29
ARFS 181688Brass1 FNPT35mA/95mA8 to 60 gpmBrass, Ceramic, PPS Composite, Polysulfone, Viton150 F212 F200 psi£568.55
BFS-550 29609Brass1 MNPT20VA15 to 48 gpmBrass, SS, Ceramic, PTFE300 F300 F2000 psi£441.03
ARFS 180395Brass3/4 FNPT35mA/95mA5 to 30 gpmBrass, Ceramic, PPS Composite, Polysulfone, Viton150 F212 F200 psi£531.69
CFS-400 26601Bronze3/4 FNPT20VA2 to 8 gpmBronze, Delrin, SS, Viton, Ceramic180 F180 F400 psi£432.64
DFS-200 26616Bronze1 FNPT20VA5 to 15 gpmBronze, PTFE, SS, Viton, Ceramic200 F200 F400 psi£445.13
CFS-400 26602Bronze3/4 FNPT20VA7 to 14 gpmBronze, Delrin, SS, Viton, Ceramic180 F180 F400 psi£410.64
DFS-200 26615Bronze1 FNPT20VA1 to 6 gpmBronze, PTFE, SS, Viton, Ceramic200 F200 F400 psi£422.49
CFS-400 26600Bronze3/4 FNPT20VA0.75 to 4 gpmBronze, Delrin, SS, Viton, Ceramic180 F180 F400 psi£418.04
DFS-200 26838Bronze1 FNPT20VA2 to 8 gpmBronze, PTFE, SS, Viton, Ceramic200 F200 F400 psi£422.49
ARFS 155425Polypropylene1/4 FNPT35mA/95mA0.1 to 5 gpmPolypropylene, Ceramic, PPS Composite, Polysulfone, Buna N150 F180 F100 psi£414.57
ARFS 155485Polypropylene1/2 FNPT35mA/95mA1.5 to 20 gpmPolypropylene, Ceramic, PPS Composite, Polysulfone, Buna N150 F180 F100 psi£415.64
EFS-550 29608Stainless Steel1 MNPT20VA15 to 48 gpmSS, Ceramic, PTFE300 F300 F2000 psi£674.98
FFS-10798 25364Stainless Steel1/2 FNPT20VA0.5 to 20 gpmSS, Viton, Epoxy300 F300 F1000 psi£1,324.81
StyleModelBody MaterialMaterialPrice (inc. VAT)
AFS-10798 25365BrassBrass, SS, Viton, Epoxy£821.42
AFS-10798 25366Stainless SteelSS, Viton, Epoxy£1,320.28
GEMS SENSORS -

Flow Switch 20 Cm/sec

StyleModelConnection SizePrice (inc. VAT)
A230500-3-201 FNPT£676.88
A230500-4-201-1/2 FNPT£676.88
A230500-1-201/2 FNPT£657.57
A230500-2-203/4 FNPT£676.88
GEMS SENSORS -

Flow Switch 60 Cm/sec

StyleModelConnection SizePrice (inc. VAT)
A230500-3-601 FNPT£676.88
A230500-1-601/2 FNPT£676.88
A230500-2-603/4 FNPT£709.36
StyleModelFlow RatePrice (inc. VAT)
AFS-500 1702320.5 gpm£151.16
AFS-500 1702310.25 gpm£674.98
AFS-500 1702331 gpm£148.44
AFS-500 1751172 gpm£148.58
AFS-500 1702342.5 gpm£151.16
AFS-500 1702355 gpm£151.16
StyleModelFlow RateSwitch TypePrice (inc. VAT)
AFS-927 708260.1 gpmSPST, NC£190.34
AFS-927 708200.1 gpmSPST, NO£198.45
AFS-927 708280.5 gpmSPST, NC£168.68
AFS-927 708220.5 gpmSPST, NO£209.12
AFS-927 708270.25 gpmSPST, NC£189.35
AFS-927 708210.25 gpmSPST, NO£199.61
AFS-927 708290.75 gpmSPST, NC£189.35
AFS-927 708230.75 gpmSPST, NO£182.39
AFS-927 708301 gpmSPST, NC£198.45
AFS-927 708251.5 gpmSPST, NO£199.61
AFS-927 708311.5 gpmSPST, NC£160.95

Frequently Asked Questions

How does the flow switch work?

Flow switch works by detecting the movement of a sensing element in response to the fluid flow. When the fluid flow reaches a certain threshold, the sensing element is actuated and triggers an electrical switch for controlling other devices, such as pumps or valves.

What factors should be considered while selecting Gems Sensors flow switch?

  • Flow rate
  • Pressure and temperature of the fluid being detected
  • Material compatibility of the sensing element and housing with the fluid.

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