Watts 1/2 BD911S Combination Fill Valve Backflow Preventer, Sweat x NPT, Bronze
The WATTS BD911 is a combination fill valve and backflow preventer, designed as a boiler feed valve. This bronze unit features a 1/2-inch pipe size with Sweat x NPT connections (MPN 1/2 BD911S).
SKU 3G-OTH-438459
Also listed as: 12BD911S · 1 2 BD911S · 1-2-BD911S
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 WATTS BD911 is a combination fill valve and backflow preventer, designed as a boiler feed valve. This bronze unit features a 1/2-inch pipe size with Sweat x NPT connections (MPN 1/2 BD911S).
Frequently Asked Questions
What is the WATTS BD911 boiler feed valve used for?
The WATTS BD911 is a combination fill valve and backflow preventer used to automatically feed water into a boiler system while preventing backflow contamination. It is commonly installed on commercial and residential hydronic heating systems to maintain proper water level and protect the potable water supply.
What are the specifications of the WATTS BD911?
The WATTS BD911 (MPN 1/2 BD911S) is a bronze combination fill valve and backflow preventer with a 1/2-inch pipe size. It features Sweat x NPT connections, making it suitable for soldering on one side and threaded piping on the other. The valve is designed for boiler feed applications.
Where to buy the WATTS BD911 worldwide?
You can source the WATTS BD911 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we supply this valve to procurement teams and engineers internationally.
How to install the WATTS BD911 boiler feed valve?
Install the WATTS BD911 by first shutting off the boiler and draining the system. Solder the Sweat connection to the supply line, then thread the NPT side to the boiler piping. Ensure the valve is oriented correctly per the flow arrow. Always follow local plumbing codes and the manufacturer's instructions for safe operation.
Used in
Common applications for WattsWatts Products
3G Electric supplies Watts combination fill valve backflow preventers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
