MCDONNELL & MILLER Flow Switches

Suitable for motors, automatic burners, signal lights, alarms and metering devices. Feature a maximum flow rate and of 131 gpm and 1000 psi, respectively

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MCDONNELL & MILLER -

Series AF Air Flow Switch

StyleModelHousing MaterialSwitch TypeMax. Ambient Temp.Operating Velocity RangeOverall HeightOverall WidthConnection SizeConnection Type
AAFE-1AluminumSPDT275°F350-1900 FPM12 1/2"5 4/5"1/2"NPT
RFQ
BAF2BrassSPDT Snap Switch300°F380-1250 FPM11 1/8"4 3/8"--
RFQ
MCDONNELL & MILLER -

Series FS6 Switch Liquid Flow

McDonnell & Miller FS6 liquid flow switches are designed to monitor the flow of liquids, such as water or oil, in pipes and systems. These liquid flow switches are highly sensitive and used in cooling systems, booster pumps, water treatment systems and compressors. They have a sealed compartment that protects the switch from liquids and a sensitivity adjustment screw to prevent false tripping of the flow switch. These liquid flow switches serve as a crucial safeguard, preventing damage and potential hazards caused by insufficient or excess liquid flow. They can be operated at temperatures ranging from 32 to 225 degrees F and can withstand pressures up to 100 psi. These liquid flow switches are integrated with an SPDT switch for monitoring the direction of liquid flow.

StyleModelSwitch TypeConnection SizeMax. Flow RateFor Pipe SizeSwitch EnclosureEnclosure RatingOverall LengthConnection TypePrice
AFS6-1SPDT1"2.5 GPM1"NEMA 1NEMA 13.7"NPT€998.99
AFS6-W-3/4SPDT3/4"2.5 GPM3/4"NEMA 4XNEMA 4-X5"NPT€1,111.64
AFS6-3/4SPDT3/4"2.5 GPM3/4"NEMA 1NEMA 13.7"NPT€996.27
BFS6-W-1SPDT1"2.5 GPM1"NEMA 4XNEMA 4X5"NPT€1,114.66
CFS6SPDT Snap Switch3/4", 1"50 GPM--NEMA 1-NPT-
RFQ
JOHNSON CONTROLS -

Flow Switches

StyleModelConnection SizeFor Pipe SizeMin. Flow RateMax. Flow RateHousing MaterialSwitch EnclosureOverall HeightOverall WidthPrice
AFS7-4SE1 1/4"1 1/4"4.8 GPM7.7 GPMBrassNEMA 7/913 4/5"4 3/5"-
RFQ
BFS7-4D1 1/4"1 1/4"4.8 GPM7.7 GPMStainless Steel-13 3/5"2.9"€1,417.87
CFS4-3D1"1"6 GPM10.2 GPM--8 2/5"3"€937.65
DFS4-3S1"1"6 GPM10.2 GPMStainless Steel-8 2/5"3"€1,787.95
EFS8-WJ1"1"4.9 GPM17.6 GPM-NEMA 4X8 2/5"3.3"€850.30
FFS4-3RP-T1"1"6 GPM10.2 GPM--8 2/5"3"€753.23
GFS4-3T3-11"1"2 GPM4.5 GPM--6.9"3"€920.45
DFS4-3DS1"1"6 GPM10.2 GPM--8 2/5"3"-
RFQ
HFS4-3T3-3/43/4"3/4"2 GPM4.5 GPM--6.9"3"-
RFQ
IFS5-D-3/43/4"3/4"1.5 GPM15 GPMBrass-5.1"3 1/5"-
RFQ
JFS4-3T1-3/43/4"3/4"5 GPM11.5 GPM--6.9"3"€898.79
MCDONNELL & MILLER -

Series FS5 Switch Liquid Flow

StyleModelHousing MaterialSwitch TypeConnection SizeFor Pipe SizeMax. Flow RateMax. PressureEnclosure RatingConnection TypePrice
AFS5-3/4BrassSPDT3/4"3/4"15 GPM150 psiNEMA 1NPT€631.38
AFS5-1BrassSPDT1"1"15 GPM150 psiGeneral PurposeNPT€690.74
BFS5Stainless SteelSPDT Snap Switch3/4"--1500 psiNEMA 1NPT-
RFQ
MCDONNELL & MILLER -

Series FS25 General Purpose Flow Switch

StyleModelMax. Flow RateSwitch EnclosureEnclosure RatingHousing MaterialSwitch TypeConnection SizeConnection TypeFor Pipe SizePrice
AFS254131 GPMNEMA 4NEMA 4BrassSPDT1"NPT1", 6"€686.94
BFS251131 GPMNEMA 1NEMA 1BrassSPDT1"NPT1", 6"€539.51
MCDONNELL & MILLER -

Series FS7 Switch Liquid Flow

StyleModelMax. Flow RateSwitch EnclosureMin. Ambient Temp.Max. PressureEnclosure RatingHousing MaterialSwitch TypeConnection SizePrice
AFS7-4SW4.8 GPMNEMA 4X-65°F1000 psiNEMA 4XBrassSPDT1 1/4"€1,955.56
BFS7-4W4.8 GPMNEMA 4X-65°F300 psiNEMA 4XBrassSPDT1 1/4"€1,270.82
CFS7-4E4.8 GPMNEMA 7/932°F300 psiNEMA 7, 9BrassSPDT1 1/4"€1,468.56
DFS7-4S4.8 GPMNEMA 132°F1000 psiNEMA 1BrassSPDT1 1/4"€1,729.45
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Spdt Flow Switches

StyleModelConnection SizeHousing MaterialFor Pipe SizeMax. Flow RateMin. Flow RateSwitch EnclosureMin. Ambient Temp.Max. PressurePrice
AFS7-41 1/4"Brass1 1/4", 16"4.8 GPM4.8 GPMNEMA 132°F300 psi€1,185.65
BFS8-W1"Stainless Steel1"17.6 GPM4.9 GPMNEMA 4X32°F160 psi€693.72
CFS4-31"Stainless Steel1"10.2 GPM6 GPM-32°F160 psi€585.38
DFS11/2"-1/2"---32°F100 psi€960.55
EAF-18"Aluminum---NEMA 132°F-€597.41
MCDONNELL & MILLER -

Spdt Snap Switch Flow Switches

StyleModelConnection SizeHousing MaterialSwitch TypeConnection TypeMax. Flow RateMin. Ambient Temp.Max. PressureVoltage
AFS2501"Stainless SteelSPDT Snap SwitchNPT-32°F160 psi120/240V AC
RFQ
BFS4-3T3/4", 1"Stainless SteelSPDT Snap SwitchNPT27 GPM32°F160 psi120/240V AC
RFQ
MCDONNELL & MILLER -

Paddle Kits

StyleModelMPNPricePkg. Qty.
AFS4-15SSFS4-15SS€70.704
BFS7-4-28FS7-4-28€46.122
BFS7-28SFS7-28S€80.132
MCDONNELL & MILLER -

Air Flow Switch, 8 Inch Paddle, Single pole

ModelItemPrice (ex. VAT)Pkg. Qty.
AF1-SCH9NXF€1,063.63
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