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Watts Double Check Valve Assembly: 774, 3 in Pipe Size, Flange x Flange, 38 in Overall Lg - Watts Double Check Backflow Preventers
WattsWatts Double Check Backflow Preventers

Watts Double Check Valve Assembly: 774, 3 in Pipe Size, Flange x Flange, 38 in Overall Lg

The Watts 774 Double Check Valve Assembly is a 3-inch backflow preventer with flange x flange connections and NRS gate valve shut-offs. This model, MPN 774-NRS, measures 38 inches in overall length and is designed…

SKU 3G-OTH-434582

Brand
Watts
Item
Double Check Valve Assembly: 774, 3 in Pipe Size, Flange x Flange, 38 in Overall Lg
Category
Watts Double Check Backflow Preventers
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Technical Specifications

Watts
Manufacturer Part Number
774-NRS
Type
Flange x Flange, 774
Overall Lg
38 in
Pipe Size
3 in
Connection Type
Flange x Flange
Shut-Off Valve Type
NRS Gate Valve
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Watts Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Watts 774 Double Check Valve Assembly is a 3-inch backflow preventer with flange x flange connections and NRS gate valve shut-offs. This model, MPN 774-NRS, measures 38 inches in overall length and is designed for industrial backflow prevention applications.

Frequently Asked Questions

What is the Watts 774 double check valve assembly used for?

The Watts 774 double check valve assembly is used for industrial backflow prevention, protecting potable water supplies from contamination in cross-connection applications. It is suitable for low-hazard installations where a double check valve is required by code.

What are the specifications of the Watts 774-NRS backflow preventer?

The Watts 774-NRS has a 3 in pipe size, flange x flange connections, and NRS gate valve shut-offs. Overall length is 38 in. It is a double check valve assembly designed for industrial backflow prevention, with manufacturer part number 774-NRS.

Where to buy a 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 availability and lead time on this model.

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 connections are properly gasketed and bolted. Follow local plumbing codes and manufacturer guidelines for testing and maintenance after installation.

Used in

Common applications for Watts
Industrial burner gas safety systems — Watts HF2000 filters with GF-series seal kits maintain clean, regulated gas supply to burner pilot and main flame controls
Commercial heating and boiler installations — Modular filter assemblies support preventive maintenance and component replacement without full system shutdown
Process gas delivery pipelines — DN25 through DN125 filter bodies accommodate varying flow rates and inlet pressures across manufacturing and chemical processes
Gas pressure regulation benches — Multi-stage Watts filter platforms integrate with pressure reducers and safety shutoff valves in test and calibration environments
Equipment retrofit and upgrade projects — Available connection sizes and seal kits enable adaptation of newer Watts components into legacy gas control systems
Planned maintenance and spare-parts inventory — Filter seal kits allow facilities to stock consumables in advance, reducing downtime during scheduled gas system servicing

Watts 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.

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