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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Spdt Flow Switches

StyleModelMin. Media Temp.Max. Media Temp.Housing MaterialMedia Temp.Max. Flow RateOverall WidthMin. Flow RateOverall HeightPrice
AFS7-432°F300°FBrass32°F to 300°F4.8 GPM-4.8 GPM-€1,185.65
BAF-132°F300°FAluminum32°F to 300°F----€597.41
CFS4-332°F300°FStainless Steel32°F to 300°F10.2 GPM3"6 GPM8 2/5"€585.38
DFS8-W32°F225°FStainless Steel32°F to 225°F17.6 GPM3.3"4.9 GPM8 2/5"€693.72
EFS132°F225°F-32°F to 225°F-3 4/5"-4 2/5"€960.55
JOHNSON CONTROLS -

Flow Switches

StyleModelMedia Temp.Max. Flow RateOverall WidthMin. Flow RateOverall HeightMax. Media Temp.Housing MaterialFor Pipe SizePrice
AFS4-3RP-T+32°F to +300°F10.2 GPM3"6 GPM8 2/5"300°F-1"€753.23
BFS4-3DS32°F10.2 GPM3"6 GPM8 2/5"--1"-
RFQ
CFS5-D-3/432°F15 GPM3 1/5"1.5 GPM5.1"-Brass3/4"-
RFQ
DFS4-3T3-132°F4.5 GPM3"2 GPM6.9"--1"€920.45
EFS4-3T3-3/432°F4.5 GPM3"2 GPM6.9"--3/4"-
RFQ
FFS4-3T1-3/432°F11.5 GPM3"5 GPM6.9"--3/4"€898.79
GFS8-WJ32°F to 225°F17.6 GPM3.3"4.9 GPM8 2/5"225°F-1"€850.30
HFS4-3D32°F to 300°F10.2 GPM3"6 GPM8 2/5"300°F-1"€937.65
IFS7-4SE32°F to 300°F7.7 GPM4 3/5"4.8 GPM13 4/5"300°FBrass1 1/4"-
RFQ
JFS7-4D32°F to 300°F7.7 GPM2.9"4.8 GPM13 3/5"300°FStainless Steel1 1/4"€1,417.87
BFS4-3S32°F to 300°F10.2 GPM3"6 GPM8 2/5"300°FStainless Steel1"€1,787.95
MCDONNELL & MILLER -

Spdt Snap Switch Flow Switches

StyleModelMax. Media Temp.Min. Media Temp.Housing MaterialMax. Flow RateWetted MaterialEnclosure RatingMax. PressureVoltage
AFS250227°F32°FStainless Steel--NEMA 1160 psi120/240V AC
RFQ
BFS4-3T300°F32°FStainless Steel27 GPMBrass, EPDMNEMA 1160 psi120/240V AC
RFQ
MCDONNELL & MILLER -

Paddle Kits

StyleModelAccessory TypeTypeProduct TypeFor Use WithFor Use With Mfr. Model NumberFor Use With Grainger Item NumberPricePkg. Qty.
AFS7-4-28BronzeBronzePaddle KitFS7-4E, FS7-4S, FS7-4SW, FS7-4W, Mfr. No. FS7-4--€46.122
AFS7-28SStainless SteelStainless SteelPaddle KitFS7-4E, FS7-4S, FS7-4SW, FS7-4W, Mfr. No. FS7-4--€80.132
BFS4-15SSStainless Steel-Paddle Kit-FS251, FS2542RUL3, 2RUL4€70.704
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.

StyleModelMax. Flow RateEnclosure RatingSwitch TypeFor Pipe SizeSwitch EnclosureMin. Media Temp.Max. Media Temp.Media Temp.Price
AFS6-W-12.5 GPMNEMA 4XSPDT1"NEMA 4X32°F225°F32°F to 225°F€1,114.66
BFS6-12.5 GPMNEMA 1SPDT1"NEMA 132°F225°F32°F to 225°F€998.99
BFS6-W-3/42.5 GPMNEMA 4-XSPDT3/4"NEMA 4X32°F225°F32°F to 225°F€1,111.64
BFS6-3/42.5 GPMNEMA 1SPDT3/4"NEMA 132°F225°F32°F to 225°F€996.27
CFS650 GPMNEMA 1SPDT Snap Switch--32°F225°F--
RFQ
MCDONNELL & MILLER -

Series AF Air Flow Switch

StyleModelMin. Media Temp.Housing MaterialOverall WidthOverall HeightOperating Velocity RangeSwitch TypeMax. Ambient Temp.Max. Media Temp.
AAF232°FBrass4 3/8"11 1/8"380-1250 FPMSPDT Snap Switch300°F300°F
RFQ
BAFE-1120°FAluminum5 4/5"12 1/2"350-1900 FPMSPDT275°F-
RFQ
MCDONNELL & MILLER -

Series FS5 Switch Liquid Flow

StyleModelMax. Media Temp.Housing MaterialWetted MaterialMax. Flow RateEnclosure RatingMax. PressureSwitch TypeFor Pipe SizePrice
AFS5225°FStainless SteelBrass, EPDM-NEMA 11500 psiSPDT Snap Switch--
RFQ
BFS5-3/4250°FBrassBrass, Buna N, EPDM15 GPMNEMA 1150 psiSPDT3/4"€631.38
BFS5-1250°FBrassBrass, Buna N, EPDM15 GPMGeneral Purpose150 psiSPDT1"€690.74
MCDONNELL & MILLER -

Series FS25 General Purpose Flow Switch

StyleModelMin. Media Temp.Max. Media Temp.Max. Flow RateEnclosure RatingFlow RateSwitch EnclosureHousing MaterialMedia Temp.Price
AFS25132°F250°F131 GPMNEMA 15.8 GPMNEMA 1Brass32°F to 227°F€539.51
BFS25432°F250°F131 GPMNEMA 45.8-12.6 GPMNEMA 4Brass32°F to 227°F€686.94
MCDONNELL & MILLER -

Series FS7 Switch Liquid Flow

StyleModelMin. Media Temp.Media Temp.Max. Flow RateEnclosure RatingMax. PressureMin. Ambient Temp.Switch EnclosureMax. Media Temp.Price
AFS7-4SW-65°F-65°F to +300°F4.8 GPMNEMA 4X1000 psi-65°FNEMA 4X300°F€1,955.56
BFS7-4W-65°F-65°F to +300°F4.8 GPMNEMA 4X300 psi-65°FNEMA 4X300°F€1,270.82
CFS7-4S32°F32°F to 300°F4.8 GPMNEMA 11000 psi32°FNEMA 1300°F€1,729.45
DFS7-4E32°F32°F to 300°F4.8 GPMNEMA 7, 9300 psi32°FNEMA 7/9300°F€1,468.56
MCDONNELL & MILLER -

Air Flow Switch, 8 Inch Paddle, Single pole

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