MCDONNELL & MILLER Flow Switch: Paddle, 1 1/4 in/16 in For Pipe Size, Brass
The MCDONNELL & MILLER Flow Switch: Paddle (SKU 3G-OTH-93315, 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…
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 3G-OTH-93315, 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.
Used in
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.
