McDonnell & Miller FS7-4 Insertion-Style Paddle Flow Switch for Liquids
The MCDONNELL & MILLER Flow Switch: Paddle (SKU FS7-4, MPN FS7-4) is an insertion-style switch for liquids. It is designed for pipe sizes from 1-1/4 in to 16 in, features a brass body with 1-1/4 in NPT connection…
SKU 3G-OTH-93315
Also listed as: FS74 · FS7 4
Local availability & support — Singapore
- Local office
- 20 Woodlands Link #09-05, Singapore 738733
- Phone
- +65 8878 8355
- Delivery
- Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
- Payment
- Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
- Ships to
- Singapore
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Product Description
The MCDONNELL & MILLER Flow Switch: Paddle (SKU FS7-4, MPN FS7-4) is an insertion-style switch for liquids. It is designed for pipe sizes from 1-1/4 in to 16 in, features a brass body with 1-1/4 in NPT connection, and has a SPDT contact rated at 44.4 A @ 120V (Locked Rotor).
Frequently Asked Questions
What is the MCDONNELL & MILLER FS7-4 flow switch used for?
The MCDONNELL & MILLER FS7-4 is an insertion-style paddle flow switch for liquids. It detects flow or no-flow conditions in pipes from 1-1/4 in to 16 in, commonly used in HVAC, boiler, and industrial water systems to protect pumps and equipment.
What are the specifications of the MCDONNELL & MILLER FS7-4 flow switch?
The FS7-4 has a brass body with a 1-1/4 in NPT connection, SPDT contacts, and a locked-rotor contact rating of 44.4 A @ 120V AC. It fits pipe sizes from 1-1/4 in to 16 in and is manufactured by MCDONNELL & MILLER.
Where to buy the MCDONNELL & MILLER FS7-4 flow switch worldwide?
3G Electric supplies the MCDONNELL & MILLER FS7-4 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 a MCDONNELL & MILLER paddle flow switch?
Install the FS7-4 by inserting the paddle into the pipe through a 1-1/4 in NPT fitting, ensuring the paddle is sized for the pipe diameter. Wire the SPDT contacts per your control circuit. Always follow local codes and the manufacturer's instructions for safe operation.
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Common applications for McDonnell & MillerMcDonnell & Miller Products
3G Electric supplies McDonnell & Miller insertion-style switches for liquids. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.