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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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J| Style | Model | Connection Size | For Pipe Size | Min. Flow Rate | Max. Flow Rate | Housing Material | Switch Enclosure | Media Temp. Range | Overall Height | Price (inc. VAT) | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | FS7-4SE | 1 1/4" | 1 1/4" | 4.8 GPM | 7.7 GPM | Brass | NEMA 7/9 | +32°F to +300°F | 13 4/5" | £2,463.88 | |
| B | FS7-4D | 1 1/4" | 1 1/4" | 4.8 GPM | 7.7 GPM | Stainless Steel | - | +32°F to +300°F | 13 3/5" | £1,170.08 | |
| C | FS4-3DS | 1" | 1" | 6 GPM | 10.2 GPM | - | - | 32°F | 8 2/5" | £1,599.69 | |
| C | FS4-3S | 1" | 1" | 6 GPM | 10.2 GPM | Stainless Steel | - | +32°F to +300°F | 8 2/5" | £1,242.96 | |
| D | FS4-3D | 1" | 1" | 6 GPM | 10.2 GPM | - | - | +32°F to +300°F | 8 2/5" | £628.72 | |
| E | FS4-3T3-1 | 1" | 1" | 2 GPM | 4.5 GPM | - | - | 32°F | 6.9" | £889.07 | |
| F | FS4-3RP-T | 1" | 1" | 6 GPM | 10.2 GPM | - | - | +32°F to +300°F | 8 2/5" | £534.05 | |
| G | FS8-WJ | 1" | 1" | 4.9 GPM | 17.6 GPM | - | NEMA 4X | +32°F to +225°F | 8 2/5" | £596.03 | |
| H | FS4-3T1-3/4 | 3/4" | 3/4" | 5 GPM | 11.5 GPM | - | - | 32°F | 6.9" | £868.15 | |
| I | FS4-3T3-3/4 | 3/4" | 3/4" | 2 GPM | 4.5 GPM | - | - | 32°F | 6.9" | £677.00 | |
| J | FS5-D-3/4 | 3/4" | 3/4" | 1.5 GPM | 15 GPM | Brass | - | 32°F | 5.1" | £904.35 |
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E| Style | Model | Housing Material | Connection Size | Connection Type | For Pipe Size | Min. Flow Rate | Max. Flow Rate | Switch Enclosure | Max. Pressure | Price (inc. VAT) | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | FS1 | - | 1/2" | NPT | 1/2" | - | - | - | 100 psi | £598.39 | |
| B | AF-1 | Aluminum | 8" | - | - | - | - | - | - | £547.06 | |
| C | FS7-4 | Brass | 1 1/4" | NPT | 1 1/4", 16" | 4.8 GPM | 4.8 GPM | - | 300 psi | £942.92 | |
| D | FS4-3 | Stainless Steel | 1" | NPT | 1" | 6 GPM | 10.2 GPM | - | 160 psi | £246.00 | |
| E | FS8-W | Stainless Steel | 1" | NPT | 1" | 4.9 GPM | 17.6 GPM | NEMA 4X | 160 psi | £497.11 |
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.
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C| Style | Model | Switch Type | Connection Size | Max. Flow Rate | For Pipe Size | Enclosure Rating | Connection Type | Min. Flow Rate | Min. Ambient Temp. | Price (inc. VAT) | |
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| A | FS6-1 | SPDT | 1" | 0.12 GPM | 1" | NEMA 1 | NPT | 0.12 GPM | 32°F | £840.84 | |
| B | FS6-W-1 | SPDT | 1" | 0.12 GPM | 1" | NEMA 4X | NPT | 0.12 GPM | 32°F | £1,108.07 | |
| A | FS6-W-3/4 | SPDT | 3/4" | 0.12 GPM | 3/4" | NEMA 4-X | NPT | 0.12 GPM | 32°F | £882.80 | |
| A | FS6-3/4 | SPDT | 3/4" | 0.12 GPM | 3/4" | NEMA 1 | NPT | 0.12 GPM | 32°F | £904.60 | |
| C | FS6 | SPDT Snap Switch | 3/4", 1" | 50 GPM | - | NEMA 1 | NPT | - | 32°F | - | RFQ
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C| Style | Model | Housing Material | Switch Type | Max. Ambient Temp. | Operating Velocity Range | Connection Size | Connection Type | For Pipe Size | Max. Flow Rate | Price (inc. VAT) | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | AFE-1 | Aluminum | SPDT | 275°F | 350-1900 FPM | 1/2" | NPT | 1/2" | 1950 GPM | £2,217.82 | |
| B | AF2 | Aluminum, Brass, Steel | SPDT Snap Switch | 300°F | 380-1250 FPM | - | - | - | - | - | RFQ
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| C | AF3 | Aluminum, Brass, Steel | SPDT Snap Switch | 275°F | 235-1445 FPM | - | - | - | - | £415.46 |
AB| Style | Model | Housing Material | Switch Type | Connection Size | For Pipe Size | Max. Pressure | Enclosure Rating | Connection Type | Min. Flow Rate | Price (inc. VAT) | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | FS5-3/4 | Brass | SPDT | 3/4" | 3/4" | 150 psi | NEMA 1 | NPT | 1.5 GPM | £526.48 | |
| A | FS5-1 | Brass | SPDT | 1" | 1" | 150 psi | General Purpose | NPT | 1.5 GPM | £557.79 | |
| B | FS5 | Stainless Steel | SPDT Snap Switch | 3/4" | - | 1500 psi | NEMA 1 | NPT | - | - | RFQ
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D| Style | Model | Switch Type | Min. Ambient Temp. | Max. Pressure | Media Temp. Range | Enclosure Rating | Housing Material | Connection Size | Connection Type | Price (inc. VAT) | |
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| A | FS7-4S | SPDT | 32°F | 1000 psi | +32°F to +300°F | NEMA 1 | Brass | 1 1/4" | NPT | £1,552.12 | |
| B | FS7-4SW | SPDT | -65°F | 1000 psi | -65°F to +300°F | NEMA 4X | Brass | 1 1/4" | NPT | £1,808.58 | |
| C | FS7-4E | SPDT | 32°F | 300 psi | +32°F to +300°F | NEMA 7, 9 | Brass | 1 1/4" | NPT | £1,220.02 | |
| D | FS7-4W | SPDT Snap Switch | -65°F | 300 psi | -65°F to +300°F | NEMA 4X | Brass | 1 1/4" | NPT | £1,052.50 |
| Model | Item | Price (inc. VAT) | |
|---|---|---|---|
| AF1-S | CH9NXF | £1,027.37 |