Watts Backflow Preventer: SD-3, 3/8 in Pipe Size, FNPT x FNPT, 2.5 gpm Flow Rate
The WATTS SD-3 is a carbonated water line dual check backflow preventer with a 3/8 in pipe size and FNPT x FNPT connections. It has a flow rate of 2.5 gpm and an overall length of 3 in (MPN 3/8 SD3-FN).
SKU 3G-OTH-428547
Also listed as: 38SD3FN · 3 8 SD3 FN · 3-8-SD3-FN
Local availability & support
- Delivery
- Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
- Payment
- Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.
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Product Description
The WATTS SD-3 is a carbonated water line dual check backflow preventer with a 3/8 in pipe size and FNPT x FNPT connections. It has a flow rate of 2.5 gpm and an overall length of 3 in (MPN 3/8 SD3-FN).
Frequently Asked Questions
What is a WATTS SD-3 backflow preventer used for?
The WATTS SD-3 is a dual check backflow preventer designed for carbonated water lines. It protects potable water supplies from contamination caused by backflow in beverage dispensing systems, soda fountains, and similar food-service applications.
What are the specifications of the WATTS SD-3 backflow preventer?
The WATTS SD-3 has a 3/8 in pipe size with FNPT x FNPT connections, a flow rate of 2.5 gpm, and an overall length of 3 in. It is a carbonated water line dual check backflow preventer, model number 3/8 SD3-FN.
Where to buy a WATTS SD-3 backflow preventer worldwide?
3G Electric supplies the WATTS SD-3 backflow preventer to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this carbonated water line dual check valve.
How to install a WATTS SD-3 backflow preventer?
Install the WATTS SD-3 in a horizontal or vertical position with flow direction matching the arrow on the body. Use thread sealant on the FNPT connections and ensure downstream pressure does not exceed upstream pressure. Test annually per local codes.
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.
