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ZURN Double Check Backflow Preventer: 350AST, 3 in Pipe Size, Flange x Flange - Zurn Double Check Backflow Preventers
ZURNZurn Double Check Backflow Preventers

ZURN Double Check Backflow Preventer: 350AST, 3 in Pipe Size, Flange x Flange

The ZURN 350AST is a 3-inch double check backflow preventer from Zurn, featuring flange x flange connections and an NRS gate valve shut-off type. This model, with manufacturer part number 3-350AST, has an overall…

SKU 3G-OTH-439812

Brand
ZURN
Item
Double Check Backflow Preventer: 350AST, 3 in Pipe Size, Flange x Flange
Category
Zurn Double Check Backflow Preventers
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Technical Specifications

ZURN
Manufacturer Part Number
3-350AST
Type
Flange x Flange
Overall Lg
32.88 in
Pipe Size
3 in
Connection Type
Flange x Flange
Shut-Off Valve Type
NRS Gate Valve
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ZURN Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The ZURN 350AST is a 3-inch double check backflow preventer from Zurn, featuring flange x flange connections and an NRS gate valve shut-off type. This model, with manufacturer part number 3-350AST, has an overall length of 32.88 inches.

Frequently Asked Questions

What is the ZURN 350AST double check backflow preventer used for?

The ZURN 350AST is used to prevent backflow of contaminated water into potable water supplies in commercial and industrial plumbing systems. It is installed in cross-connections where backflow risk exists, such as irrigation, fire sprinkler, and process water lines.

What are the specifications of the ZURN 3-350AST backflow preventer?

The ZURN 3-350AST is a 3-inch double check backflow preventer with flange x flange connections and an NRS gate valve shut-off type. It has an overall length of 32.88 inches and is manufactured by Zurn under part number 3-350AST.

Where to buy the ZURN 350AST backflow preventer worldwide?

3G Electric supplies the ZURN 350AST double check backflow preventer worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time.

How to install a ZURN double check backflow preventer?

Install the ZURN 350AST in a horizontal or vertical orientation with adequate clearance for servicing. Ensure flange connections are properly gasketed and bolted to matching flanges. Always follow local plumbing codes and the manufacturer's installation manual for correct placement and testing.

Used in

Common applications for ZURN
Commercial restrooms — ZURN AquaVantage® automatic flush valves (ZER6000AV series) for water-efficient toilet flushing
Institutional kitchens — ZURN cast iron floor drains (ZN415 series) for heavy-duty drainage in food preparation areas
Industrial washdown areas — ZURN height-adjustable PVC floor drains (EZ1 series) for chemical-resistant drainage
Hospital patient rooms — ZURN dome strainers (P1910 series) for floor sink drainage in sanitary environments
Office building maintenance — ZURN chrome-plated brass P-traps (ZR365B-PC) for sink trap replacements
Urinal retrofit projects — ZURN ZTR sensor flush valve retrofit kits (ZTR6203 series) for upgrading manual urinal flush valves

ZURN Products

3G Electric supplies ZURN zurn 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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