Watts Dual Check with Atmospheric Vent: 9BD, 1/4 in Pipe Size, MNPT x MNPT, 2.5 gpm Flow Rate
The WATTS 9BD is a carbonated water line dual check backflow preventer with an atmospheric vent, featuring a 1/4 in pipe size and MNPT x MNPT connections. It has a flow rate of 2.5 gpm and is designed for male…
SKU 3G-OTH-428536
Need installation or engineering help?
Ask a question
Product Description
The WATTS 9BD is a carbonated water line dual check backflow preventer with an atmospheric vent, featuring a 1/4 in pipe size and MNPT x MNPT connections. It has a flow rate of 2.5 gpm and is designed for male connections.
Frequently Asked Questions
What is the WATTS 9BD dual check backflow preventer used for?
The WATTS 9BD is a carbonated water line dual check backflow preventer with an atmospheric vent. It is used in beverage dispensing systems to prevent backflow of carbonated water into the potable water supply, protecting against contamination in commercial kitchens and soda fountains.
What are the specifications of the WATTS 9BD backflow preventer?
The WATTS 9BD has a 1/4 in pipe size with MNPT x MNPT connections and a flow rate of 2.5 gpm. It is designed for male connections and is a dual check valve with an atmospheric vent, suitable for carbonated water lines. The manufacturer part number is 9BD.
Where to buy the WATTS 9BD backflow preventer worldwide?
You can source the WATTS 9BD dual check backflow preventer through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations, ensuring the product reaches your facility regardless of location.
How to install the WATTS 9BD dual check backflow preventer?
Install the WATTS 9BD by connecting the male MNPT threads to matching female fittings on the carbonated water line. Ensure the atmospheric vent is unobstructed and oriented downward. Follow local plumbing codes and use thread sealant on the connections. Test for proper backflow prevention after installation.
Used in
Common applications for WattsWatts Products
3G Electric supplies Watts carbonated water line dual check backflow preventers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.













