MCDONNELL & MILLER Liquid Flow Switch: 3/4 in For Pipe Size, Brass, 3/4 in NPT
The MCDONNELL & MILLER FS5-3/4 is a brass inline liquid flow switch for 3/4 in pipe size with 3/4 in NPT connections. It has a contact rating of 22.2 A @ 240V (Locked Rotor) and operates in temperatures from 32°F to…
SKU 3G-OTH-88531
Also listed as: FS534 · FS5 3 4 · FS5-3-4
Local availability & support
- Delivery
- Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
- Payment
- Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.
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Product Description
The MCDONNELL & MILLER FS5-3/4 is a brass inline liquid flow switch for 3/4 in pipe size with 3/4 in NPT connections. It has a contact rating of 22.2 A @ 240V (Locked Rotor) and operates in temperatures from 32°F to 250°F.
Frequently Asked Questions
What is the MCDONNELL & MILLER FS5-3/4 liquid flow switch used for?
The MCDONNELL & MILLER FS5-3/4 is used to detect liquid flow or no-flow conditions in piping systems. It is commonly applied in HVAC, boiler, and industrial process lines to protect pumps, chillers, and heat exchangers from damage due to insufficient flow.
What are the specifications of the MCDONNELL & MILLER FS5-3/4 flow switch?
The FS5-3/4 is a brass inline liquid flow switch for 3/4 in pipe size with 3/4 in NPT connections. It has a contact rating of 22.2 A @ 240V (Locked Rotor) and operates in temperatures from 32°F to 250°F. The manufacturer part number is FS5-3/4.
Where to buy the MCDONNELL & MILLER FS5-3/4 worldwide?
3G Electric supplies the MCDONNELL & MILLER FS5-3/4 liquid flow switch worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.
How to install the MCDONNELL & MILLER FS5-3/4 flow switch?
Install the FS5-3/4 in a horizontal pipe section with the flow arrow aligned to the direction of flow. Use Teflon tape on the 3/4 in NPT threads and ensure the pipe is fully supported. Wire the switch according to the contact rating of 22.2 A @ 240V. Always follow local electrical codes.
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3G Electric supplies McDonnell & Miller inline switches for liquids. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
