Watts 774-OSY Double Check Valve Assembly, 8 in, Flange x Flange, OSY Gate Valve
The Watts 774 Double Check Valve Assembly is a backflow preventer featuring an 8-inch pipe size with flange x flange connections and OSY gate valve shut-off valves. This assembly, identified by manufacturer part…
SKU 3G-OTH-434593
Also listed as: 774OSY · 774 OSY
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- Delivery
- Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
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- Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.
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Product Description
The Watts 774 Double Check Valve Assembly is a backflow preventer featuring an 8-inch pipe size with flange x flange connections and OSY gate valve shut-off valves. This assembly, identified by manufacturer part number 774-OSY, has an overall length of 52.5 inches.
Frequently Asked Questions
What is the Watts 774 Double Check Valve Assembly used for?
The Watts 774 Double Check Valve Assembly prevents backflow of non-potable water into potable water supplies in commercial and industrial plumbing systems. It is commonly installed in fire sprinkler, irrigation, and process water lines where low-hazard cross-connections exist.
What are the specifications of the Watts 774-OSY backflow preventer?
The Watts 774-OSY has an 8 in pipe size, flange x flange connections, and OSY gate valve shut-offs. Overall length is 52.5 in. It is a double check valve assembly designed for backflow prevention in water lines up to 1.5 bar working pressure.
Where to buy the Watts 774 Double Check Valve Assembly worldwide?
3G Electric supplies the Watts 774 Double Check Valve Assembly worldwide. As a global industrial sourcing partner, we handle logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this 8 in flange x flange backflow preventer.
How to install a Watts 774 double check valve assembly?
Install the Watts 774 in a horizontal or vertical position with flow arrow pointing downstream. Ensure flange gaskets are properly seated and bolts torqued to manufacturer specs. Always install test cocks and leave clearance for maintenance. Consult local plumbing codes for backflow prevention requirements.
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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.
