Watts Double Check Valve Assembly: 774, 2 1/2 in Pipe Size, Flange x Flange, 37 in Overall Lg
The Watts 774 Double Check Valve Assembly is a Watts Double Check Backflow Preventer featuring a flange x flange connection and an OSY gate valve shut-off valve type. This model, with manufacturer part number…
SKU 3G-OTH-434578
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.
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Product Description
The Watts 774 Double Check Valve Assembly is a Watts Double Check Backflow Preventer featuring a flange x flange connection and an OSY gate valve shut-off valve type. This model, with manufacturer part number 774-OSY, has a 2 1/2 inch pipe size and an overall length of 37 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 on fire sprinkler lines, irrigation systems, and boiler feed lines to protect against cross-connections.
What are the specifications of the Watts 774 Double Check Valve Assembly?
The Watts 774 Double Check Valve Assembly has a 2 1/2 in pipe size, flange x flange connection, and an OSY gate valve shut-off type. Its overall length is 37 in, and the manufacturer part number is 774-OSY. It is designed for backflow prevention in water systems.
Where to buy the Watts 774 Double Check Valve Assembly worldwide?
3G Electric supplies the Watts 774 Double Check Valve Assembly worldwide, handling full logistics and customs clearance for international orders. As a global industrial solutions provider, we source and deliver this genuine Watts backflow preventer to your location, ensuring compliance with local regulations.
How to install the Watts 774 Double Check Valve Assembly?
Install the Watts 774 Double Check Valve Assembly in a horizontal or vertical position with the flow arrow pointing downstream. Ensure the flange connections are properly gasketed and bolted to matching flanges. Test the assembly per local codes after installation to verify backflow prevention functionality.
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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.
