Watts Double Check Valve Assembly: 774, 4 in Pipe Size, Flange x Flange, 40 in Overall Lg
The Watts 774 Double Check Valve Assembly (MPN 774-NRS) is a 4-inch pipe size backflow preventer with flange x flange connections. It features NRS gate valve shut-off valves and has an overall length of 40 inches.
SKU 3G-OTH-434598
Also listed as: 774NRS · 774 NRS
Local availability & support — Singapore
- Local office
- 20 Woodlands Link #09-05, Singapore 738733
- Phone
- +65 8878 8355
- Delivery
- Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
- Payment
- Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
- Ships to
- Singapore
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Product Description
The Watts 774 Double Check Valve Assembly (MPN 774-NRS) is a 4-inch pipe size backflow preventer with flange x flange connections. It features NRS gate valve shut-off valves and has an overall length of 40 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 and industrial plumbing systems. It is installed in cross-connection control applications to protect public health.
What are the specifications of the Watts 774-NRS double check valve assembly?
The Watts 774-NRS has a 4 in pipe size, flange x flange connections, NRS gate valve shut-off valves, and an overall length of 40 in. It is a double check valve assembly designed for backflow prevention in water lines.
Where to buy the Watts 774 double check valve assembly worldwide?
3G Electric supplies the Watts 774 double check valve assembly worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this backflow preventer.
How to install a Watts 774 double check valve assembly?
Install the Watts 774 in a horizontal position with adequate clearance for maintenance. Ensure flow direction matches the arrow on the body. Flange connections require proper gaskets and bolting. Always follow local plumbing codes and manufacturer guidelines.
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.
