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Product Specifications:
| Item | Flow Switch |
| Ac Contact Rating | 22.2 A @ 240V (Locked Rotor), 3.7 A @ 240V (Full Load), 44.4 A @ 120V (Locked Rotor), 7.4 A @ 120V (Full Load) |
| Connection Size | 1" |
| Connection Type | NPT |
| Contact Rating (ac) | 22.2A @ 240V (Locked Rotor), 3.7A @ 240V (Full Load), 44.4A @ 120V (Locked Rotor), 7.4A @ 120V (Full Load) |
| Flow Range | 6-10.2 GPM |
| Flow Rate - Maximum | 10.2 GPM |
| Flow Rate - Minimum | 6 GPM |
| Flow Switch Type | Paddle |
| For Pipe Size | 1" |
| For Use With | Air Conditioning |
| Max. Flow Rate | 10.2 GPM |
| Max. Media Temp. | 300°F |
| Media Temp. Range | 32°F to 300°F |
| Mfr. Part No. | FS4-3D |
| Min. Ambient Temp. | 32°F |
| Min. Flow Rate | 6 GPM |
| Min. Media Temp. | 32°F |
| Overall Height | 8 2/5" |
| Overall Length | 3 2/5" |
| Overall Width | 3" |
| Set Point Configuration | Adjustable |
| Switch Type | SPDT |
| Wetted Material | Brass, Stainless Steel |
| Wetted Material | Brass, Stainless Steel |
Shipping Info:
| Ship weight (kg) | 0.99 |
| Ship height (cm) | 21.34 |
| Ship length (cm) | 8.38 |
| Ship width (cm) | 8.38 |
| Country of Origin | US |
Product Variants
| Product | Model | Connection Size | For Pipe Size | Min. Flow Rate | Max. Flow Rate | Housing Material | Switch Enclosure | Media Temp. Range | Overall Height | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
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FS4-3DS | 1" | 1" | 6 GPM | 10.2 GPM | - | - | 32°F | 8 2/5" | - | RFQ
|
![]() |
FS4-3S | 1" | 1" | 6 GPM | 10.2 GPM | Stainless Steel | - | 32°F to 300°F | 8 2/5" | €1,787.95 | |
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FS4-3RP-T | 1" | 1" | 6 GPM | 10.2 GPM | - | - | +32°F to +300°F | 8 2/5" | €753.23 | |
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FS4-3T3-3/4 | 3/4" | 3/4" | 2 GPM | 4.5 GPM | - | - | 32°F | 6.9" | - | RFQ
|
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FS5-D-3/4 | 3/4" | 3/4" | 1.5 GPM | 15 GPM | Brass | - | 32°F | 5.1" | - | RFQ
|
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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" | - | RFQ
|
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FS7-4D | 1 1/4" | 1 1/4" | 4.8 GPM | 7.7 GPM | Stainless Steel | - | 32°F to 300°F | 13 3/5" | €1,417.87 |
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MCDONNELL & MILLER FS4-3D 114550 Flow Switch, 1 Inch with 2-Speed T Switches
€937.65 /unit






