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ZURN Double Check Backflow Preventer: 350AST, 8 in Pipe Size, Flange x Flange - Zurn Double Check Backflow Preventers
ZURNZurn Double Check Backflow Preventers

ZURN Double Check Backflow Preventer: 350AST, 8 in Pipe Size, Flange x Flange

The ZURN 350AST is an 8-inch double check backflow preventer with flange x flange connections and NRS gate valve shut-off valves. This model, MPN 8-350AST, has an overall length of 52.75 inches.

SKU 3G-OTH-439821

Also listed as: 8350AST · 8 350AST

Brand
ZURN
Item
Double Check Backflow Preventer: 350AST, 8 in Pipe Size, Flange x Flange
Category
Zurn Double Check Backflow Preventers
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Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

ZURN
Manufacturer Part Number
8-350AST
Type
Flange x Flange
Overall Lg
52.75 in
Pipe Size
8 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 an 8-inch double check backflow preventer with flange x flange connections and NRS gate valve shut-off valves. This model, MPN 8-350AST, has an overall length of 52.75 inches.

Frequently Asked Questions

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

The ZURN 350AST double check backflow preventer is used in commercial and industrial water systems to prevent reverse flow of contaminated water into the potable supply. It is commonly installed in fire sprinkler systems, irrigation lines, and high-hazard plumbing applications where backflow protection is required.

What are the specifications of the ZURN 8-350AST backflow preventer?

The ZURN 8-350AST is an 8-inch double check backflow preventer with flange x flange connections and NRS gate valve shut-off valves. It has an overall length of 52.75 inches and is manufactured under MPN 8-350AST. This model is designed for high-flow commercial and industrial applications.

Where to buy the ZURN 8-350AST backflow preventer worldwide?

3G Electric supplies the ZURN 8-350AST double check backflow preventer worldwide. As a global industrial equipment distributor since 1990, 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 ZURN double check backflow preventer?

Install the ZURN double check backflow preventer in a horizontal or vertical position with adequate clearance for maintenance. Ensure flange connections are properly aligned and gasketed. Follow local plumbing codes and manufacturer guidelines for testing and commissioning. Always consult a licensed professional for installation.

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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