Mcdonnell & Miller Series AF3 Air Flow Switches
Note: listed by manufacturer as obsolete/discontinued.
SKU 3G-OTH-02750
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
Note: listed by manufacturer as obsolete/discontinued.
Frequently Asked Questions
What is the McDonnell & Miller AF3 flow switch used for?
The McDonnell & Miller AF3 is a general-purpose low-velocity flow switch designed for applications where an economical switch is needed. It is commonly used in HVAC, water treatment, and industrial piping systems to detect flow or no-flow conditions in ducts or pipes of 8 inches (203 mm) minimum size.
What are the specifications of the McDonnell & Miller AF3 flow switch?
The AF3 flow switch features a paddle that fits a minimum duct size of 8 inches (203 mm). It is designed for low-velocity applications and includes two electrical connections. Note that the manufacturer lists this model as obsolete or discontinued, so availability may be limited.
Where to buy the McDonnell & Miller AF3 flow switch in Singapore?
You can source the McDonnell & Miller AF3 flow switch through 3G Electric in Singapore. We handle logistics, customs clearance, and delivery to your facility. Contact us for current pricing and lead time, as this model is listed as discontinued by the manufacturer.
How to install the McDonnell & Miller AF3 flow switch?
Install the AF3 flow switch in a horizontal pipe section with the paddle oriented correctly for flow direction. Ensure the minimum duct size of 8 inches (203 mm) is met. Follow standard wiring practices for the two electrical connections and verify proper operation after installation. Consult the manufacturer's manual for specific torque and clearance requirements.
Used in
Common applications for Mcdonnell & MillerMcdonnell & Miller Products
3G Electric supplies Mcdonnell & Miller flow switches. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
