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Product Specifications:
| Item | Liquid Flow Switch |
| Application | Alarms, Automatic Burners And Metering Devices, Motors, Signal Lights |
| Connection Size | 3/4" |
| Connection Type | NPT |
| 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) |
| Contact Rating (ac) | 22.2A @ 240V (Locked Rotor), 3.7A @ 240V (Full Load), 44.4A @ 120V (Locked Rotor), 7.4A @ 120V (Full Load) |
| Enclosure Rating | NEMA 1 |
| Flow Rate - Maximum | 1.5 GPM |
| Flow Rate - Minimum | 1.5 GPM |
| Flow Rate Range | 1.5 GPM |
| For Pipe Size | 3/4" |
| Height | 5.1" |
| Housing Material | Brass |
| Housing/body Material | Brass |
| Length | 3 1/5" |
| Max. Ambient Temp. | 250°F |
| Max. Flow Gpm | 15 |
| Max. Flow Gpm | 15 GPM |
| Max. Flow Rate | 15 GPM |
| Max. Pressure | 150 psi |
| Media Temp. Range | 32°F to 250°F |
| Media Temperature (maximum) | 250°F |
| Min. Ambient Temp. | 32°F |
| Min. Flow Rate | 1.5 GPM |
| Min. Flow Rate (gpm) | 1.5 GPM |
| Min. Fluid Temp. | 32 F |
| Min. Media Temp. | 32°F |
| Overall Height | 5.1" |
| Overall Length | 3.2" |
| Set Point Configuration | Adjustable |
| Switch Enclosure | NEMA 1 |
| Switch Type | SPDT |
| Type | General Purpose |
| Voltage | 120/240V AC |
| Wetted Material | Brass, Buna-N, EPDM |
| Wetted Material | Brass, Buna N, EPDM |
Shipping Info:
| Ship weight (kg) | 1.13 |
| Ship height (cm) | 12.95 |
| Ship length (cm) | 8.13 |
| Ship width (cm) | 11.43 |
| HS code | 9032896060 |
| Country of Origin | US |
Product Details:
McDonnell & Miller FS5-3/4 liquid flow switch detects and signals lack of flow, preventing equipment damage and maintaining system efficiency. This switch alerts operators to potential issues such as low flow or pump failure, allowing for timely intervention to prevent costly downtime and damage to equipment.
Features:
- This liquid flow switch features brass housing for durability and has a 3/4 inch NPT connection.
- It is designed for inline installation, minimising space requirements and the impact on system line pressure.
- This liquid flow switch can be operated at temperatures ranging from 32 to 250 degrees F.
- It is equipped with an SPDT switch and wetted materials including brass, Buna-N and EPDM.
Frequently Asked Questions:
Q. What is the significance of the adjustable set point configuration in McDonnell & Miller FS5-3/4 liquid flow switch?
A. McDonnell & Miller FS5-3/4 liquid flow switch allows users to adjust the set point configuration to tailor flow detection parameters according to specific system requirements. This feature ensures precise control over flow monitoring, enhancing system performance.
Q. What is the contact reading of this liquid flow switch?
A.
- Contact Rating (AC)
- 22.2 A @ 240V (Locked Rotor)
- 3.7 A @ 240V (Full Load)
- 44.4 A @ 120V (Locked Rotor)
- 7.4 A @ 120V (Full Load)
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Contact us
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MCDONNELL & MILLER FS5-3/4 114760 Switch Liquid Flow, 3/4 MNPT, 150 Psi
€631.38 /unit

