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 -

FS-4 Series Flow Switch

StyleModelSwitch TypeMin. Flow RateMax. Flow RateHousing MaterialConnection SizeConnection TypeMin. Ambient Temp.Max. PressurePrice
AFS-4 122352SPDT0 GPM0.1 GPMPPS9/16"UNF0°F250 psi€271.46
AFS-4 122353SPDT1 GPM0.25 GPMPPS9/16"UNF0°F250 psi€291.56
AFS-4 122355SPDT1 GPM0.75 GPMPPS9/16"UNF0°F250 psi€250.91
AFS-4 122356SPDT0 GPM0.5 GPMPPS9/16"UNF0°F250 psi€271.46
AFS-4 122354SPST0 GPM0.5 GPMPPS9/16"UNF0°F250 psi€278.38
GEMS SENSORS -

FS-380 Series Flow Switch

StyleModelSwitch TypeConnection TypeMin. Flow RateMax. Flow RateMin. Ambient Temp.Max. PressureMedia Temp. RangeMax. Ambient Temp.Price
AFS-380P 209876SPSTNPT0 GPM0.15 GPM0°F125 psi0°F to +212°F212°F€150.09
AFS-380P 197081SPSTNPT0 GPM0.25 GPM0°F125 psi0°F to +212°F212°F€150.09
BFS-380 179992SPSTNPT0 GPM0.25 GPM-20°F1500 psi-20°F to +275°F275°F€736.80
BFS-380 193482SPSTNPT0 GPM0.15 GPM-20°F1500 psi-20°F to +275°F275°F€713.35
CFS-380 178353SPSTNPT1 GPM2 GPM-20°F1500 psi-20°F to +275°F275°F€312.15
CFS-380 168435SPSTNPT1 GPM1.5 GPM-20°F1500 psi-20°F to +275°F275°F€312.15
CFS-380 168434SPSTNPT0 GPM1 GPM-20°F1500 psi-20°F to +275°F275°F€312.15
CFS-380 168433SPSTNPT0 GPM0.5 GPM-20°F1500 psi-20°F to +275°F275°F€289.54
CFS-380 168432SPSTNPT0 GPM0.25 GPM-20°F1500 psi-20°F to +275°F275°F€293.45
CFS-380 181130SPSTNPT0 GPM0.15 GPM-20°F1500 psi-20°F to +275°F275°F€312.15
AFS-380P 197085SPSTNPT1 GPM2 GPM0°F125 psi0°F to +212°F212°F€159.83
AFS-380P 197084SPSTNPT1 GPM1.5 GPM0°F125 psi0°F to +212°F212°F€150.09
AFS-380P 197083SPSTNPT0 GPM1 GPM0°F125 psi0°F to +212°F212°F€159.83
AFS-380P 197082SPSTNPT0 GPM0.5 GPM0°F125 psi0°F to +212°F212°F€150.09
BFS-380 179996SPSTNPT1 GPM2 GPM-20°F1500 psi-20°F to +275°F275°F€706.75
BFS-380 179993SPST, NOMNPT---20°F1500 psi-20°F to +275°F275°F€601.34
BFS-380 179995SPST, Normally OpenNPT1 GPM5 GPM-20°F1500 psi-20°F to +275°F275°F€706.75
StyleModelMin. Flow RateMax. Flow RateHousing MaterialSwitch TypeSwitch PositionConnection SizeConnection TypeMin. Ambient Temp.Price
AFS-500 1702310 GPM0.25 GPMPolypropyleneSPSTNormally Open3/4"FNPT0°F€836.45
AFS-500 1702320 GPM0.5 GPMPolypropyleneSPSTNormally Open3/4"FNPT0°F€210.02
AFS-500 1702330 GPM1 GPMPolypropyleneSPSTNormally Open3/4"FNPT0°F€196.31
AFS-500 1751171 GPM2 GPMPolypropyleneSPSTNormally Open3/4"FNPT0°F€210.02
AFS-500 1702341 GPM2.5 GPMPolypropyleneSPSTNormally Open3/4"FNPT0°F€210.02
AFS-500 1702351 GPM5 GPMPolypropyleneSPSTNormally Open3/4"FNPT0°F€210.02
StyleModelHousing MaterialConnection SizeMin. Flow RateMax. Flow RateDc Contact RatingMax. PressureMedia Temp. RangeOverall WidthPrice
ARFS 156265Brass1/4"0.5 GPM5 GPM20 Ma @ 24V200 psi-20°F to +212°F3"€748.31
ARFS 156268Brass1/2"4 GPM20 GPM20 Ma @ 24V200 psi-20°F to +212°F3"€748.17
ARFS 180395Brass3/4"5 GPM30 GPM20 Ma @ 24V200 psi-20°F to +212°F3.9"€723.48
ARFS 181688Brass1"8 GPM60 GPM20mA @ 24V200 psi-20°F to +212°F3.9"€787.35
ARFS 155485Polypropylene1/2"4 GPM20 GPM20 Ma @ 24V100 psi-20°F to +180°F3.1"€581.03
ARFS 155425Polypropylene1/4"0.5 GPM5 GPM20 Ma @ 24V100 psi-20°F to +180°F3.1"€565.78
StyleModelMax. Flow RateMedia Temp. RangeSwitch TypeConnection SizeMin. Flow RateConnection TypeHousing MaterialMin. Ambient Temp.Price
AFS-926 269380.013 GPM-20°F to +225°FSPDT1/4"0 GPMFNPTBrass-20°F€631.04
AFS-926 269420.013 GPM-20°F to +225°FSPDT1/4"0 GPM---20°F€601.40
AFS-926 269510.025 GPM-20°F to +300°FSPDT1/4"0 GPMFNPTBrass-20°F€986.28
AFS-926 269390.045 GPM-20°F to +225°FSPDT1/4"0 GPMFNPTBrass-20°F€601.40
AFS-926 269410.065 GPM-20°F to +225°FSPDT1/4"0 GPMFNPTBrass-20°F€631.04
AFS-926 269560.075 GPM-20°F to +300°FSPDT1/4"0 GPMFNPT--20°F€944.70
AFS-926 269521 GPM-20°F to +225°FSPDT1/4"0 GPMFNPTBrass-20°F€986.28
StyleModelSwitch PositionMin. Flow RateMax. Flow RateHousing MaterialConnection SizeConnection TypeSwitch TypeMax. PressurePrice
AFS-927 70827Normally Closed0 GPM0.25 GPMBrass1/4"FNPTSPST1000 psi€229.62
AFS-927 70826Normally Closed0 GPM0.1 GPMBrass1/4"FNPTSPST1000 psi€270.31
AFS-927 70828Normally Closed0 GPM0.5 GPMBrass1/4"FNPTSPST1000 psi€270.31
AFS-927 70829Normally Closed0 GPM0.75 GPMBrass1/4"FNPTSPST1000 psi€229.62
AFS-927 70830Normally Closed0 GPM1 GPMBrass1/4"FNPTSPST1000 psi€270.31
AFS-927 70831Normally Closed1 GPM1.5 GPMBrass1/4"FNPT-1000 psi€247.93
AFS-927 70820Normally Open0 GPM0.1 GPMBrass1/4"FNPTSPST1000 psi€270.31
AFS-927 70821Normally Open0 GPM0.25 GPMBrass1/4"FNPTSPST1000 psi€283.76
AFS-927 70822Normally Open0 GPM0.5 GPMBrass1/4"FNPTSPST1000 psi€283.76
AFS-927 70823Normally Open0 GPM0.75 GPMBrass1/4"FNPTSPST1000 psi€258.80
AFS-927 70825Normally Open1 GPM1.5 GPMBrass1/4"FNPTSPST1000 psi€283.76
StyleModelSwitch TypeConnection SizeConnection TypeMin. Flow RateMax. Flow RateHousing MaterialMin. Ambient Temp.Max. PressurePrice
AFS-10798 25365SPDT1/2"FNPT0.5 GPM20 GPMBrass-20°F1000 psi€1,001.91
AFS-10798 25366SPDT1/2"FNPT0.5 GPM20 GPM--20°F1000 psi€1,547.07
StyleModelConnection SizeMax. Flow RateMin. Flow RateMin. Ambient Temp.Overall WidthHousing MaterialSwitch TypeSwitch PositionPrice
A230500-4-51 1/2"5 GPM1 GPM-14°2.3"Stainless SteelSPSTNormally Open€875.49
A230500-3-51"0.64 GPM0 GPM-14°F1 1/2"Stainless SteelSPSTNormally Open€875.49
A230500-3-601"4.34 GPM1 GPM-14°F1 1/2"Stainless SteelSPSTNormally Open€875.49
A230500-3-401"3 GPM1 GPM-14°1 1/2"Stainless SteelSPSTNormally Open€820.84
A230500-1-201/2"0.46 GPM0 GPM-14°1.1"Stainless SteelSPSTNormally Open€864.87
A230500-1-601/2"1.34 GPM1 GPM-14°1.1"Stainless SteelSPSTNormally Open€860.22
A230500-2-53/4"0.35 GPM0 GPM-14°1 1/2"Stainless SteelSPSTNormally Open€820.84
A230500-2-203/4"1.01 GPM--14°F1 1/2"Stainless SteelSPSTNormally Open€838.63
A230500-2-403/4"1.9 GPM1 GPM-14°-Stainless SteelSPSTNormally Open€824.18
A230500-2-603/4"2.79 GPM1 GPM-14°1 1/2"Stainless SteelSPSTNormally Open€875.49
StyleModelMin. Flow RateMax. Flow RateHousing MaterialSwitch TypeConnection SizeConnection TypeMin. Ambient Temp.Max. PressurePrice
AFS-400 266000.75 GPM4 GPMBronzeSPDT3/4"FNPT-20°F400 psi€580.00
AFS-400 266012 GPM8 GPMBronzeSPDT3/4"FNPT-20°F400 psi€555.45
AFS-400 266027 GPM14 GPMBronzeSPDT3/4"FNPT-20°F400 psi€529.38
GEMS SENSORS -

FS-550 Series Flow Switches

StyleModelVoltageSwitch TypeConnection SizeConnection TypeFor Pipe SizeMin. Flow RateMax. Flow RateMin. Ambient Temp.Price
AFS-550 2960820V ACSPDT1"NPT1 1/2"15 GPM52 GPM-30°F€836.45
BFS-550 2960924-240VSPDT1"NPT1 1/2"15 GPM52 GPM-30°F€565.39
GEMS SENSORS -

FS-200 Series Flow Switches

StyleModelConnection SizeMin. Flow RateMax. Flow RateMax. PressureMedia Temp. RangeMax. Ambient Temp.HeightMax. Filter RatingPrice
AFS-200 266151"1 GPM6 GPM400 psi-20°F to +200°F200°F3"150 µm€543.42
AFS-200 266161"5 GPM15 GPM400 psi-20°F to +200°F200°F3"150 µm€570.23
AFS-200 268381"2 GPM8 GPM400 psi-20°F to +200°F200°F3"150 µm€543.42
BFS-10798 253641/2"0.5 GPM20 GPM1000 psi-20°F to +300°F300°F2"50 µm€1,671.59
GEMS SENSORS -

FS-150Series Flow Switch

StyleModelSwitch PositionMax. Flow RateMax. PressureHousing MaterialSwitch TypeConnection SizeConnection TypeSwitch EnclosurePrice
AFS-150 NC 0.5GPMNormally Closed-150 psi, 200 psiPolypropyleneSPST1/2"NPTPolypropylene€254.98
AFS-150 NC 1.0GPMNormally Closed1 GPM150 psi, 200 psiPolypropyleneSPST1/2"NPTPolypropylene€209.22
AFS-150 NO 0.5GPMNormally Open0.5 GPM150 psi, 200 psiPolypropyleneSPST1/2"NPTPolypropylene€254.98
AFS-150 NO 1.0GPMNormally Open1 GPM200 psiPolypropyleneSPST1/2"NPTPolypropylene€254.98
AFS-150 NO 2.0GPMNormally Open2 GPM150 psi, 200 psiPolypropyleneSPST1/2"NPTPolypropylene€242.95
AFS-150 NO 3.0GPMNormally Open3 GPM150 psi, 200 psiPolypropyleneSPST1/2"NPTPolypropylene€254.98