Watts Double Check Valve Assembly: 774, 6 in Pipe Size, Flange x Flange, 48.5 in Overall Lg
The Watts 774 Double Check Valve Assembly (MPN 774-OSY) is a backflow preventer with a 6-inch pipe size and flange x flange connections. It features an OSY gate valve shut-off type and has an overall length of 48.5…
SKU 3G-OTH-434589
Also listed as: 774OSY · 774 OSY
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.
Need installation or engineering help?
Ask a question
Product Description
The Watts 774 Double Check Valve Assembly (MPN 774-OSY) is a backflow preventer with a 6-inch pipe size and flange x flange connections. It features an OSY gate valve shut-off type and has an overall length of 48.5 inches.
Frequently Asked Questions
What is the Watts 774 double check valve assembly used for?
The Watts 774 double check valve assembly is used to prevent backflow of contaminated water into potable water supplies in commercial, industrial, and municipal piping systems. It is suitable for continuous pressure applications and low-hazard cross-connections where backflow protection is required.
What are the specifications of the Watts 774 double check valve assembly?
The Watts 774 double check valve assembly (MPN 774-OSY) has a 6-inch pipe size, flange x flange connections, and an overall length of 48.5 inches. It features an OSY gate valve shut-off type. This Watts backflow preventer is designed for reliable backflow protection in water lines.
Where to buy the Watts 774 double check valve assembly worldwide?
You can source the Watts 774 double check valve assembly worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on this Watts backflow preventer.
How to install a Watts 774 double check valve assembly?
Install the Watts 774 double check valve assembly in a horizontal or vertical position with flow direction matching the arrow on the body. Ensure adequate clearance for maintenance of the OSY gate valves and test cocks. Follow local plumbing codes and use flange gaskets for leak-free connections.
Used in
Common applications for WattsWatts Products
3G Electric supplies Watts watts double check backflow preventers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
