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ZURN 350AST Double Check Backflow Preventer - Zurn Double Check Backflow Preventers
ZURNZurn Double Check Backflow Preventers

ZURN 350AST Double Check Backflow Preventer

The ZURN 350AST is a 6-inch double check backflow preventer with flange x flange connections and an NRS gate valve shut-off. This model, identified by MPN 6-350AST, has an overall length of 43.5 inches.

SKU 3G-OTH-439817

Also listed as: 6350AST · 6 350AST

Brand
ZURN
Item
350AST Double Check Backflow Preventer
Part Number
6-350AST
Category
Zurn Double Check Backflow Preventers
Available to Order
Also known as:6-350ASTZURN
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Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
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Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

ZURN
Manufacturer Part Number
6-350AST
Type
Flange x Flange
Overall Lg
43.5 in
Pipe Size
6 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 6-inch double check backflow preventer with flange x flange connections and an NRS gate valve shut-off. This model, identified by MPN 6-350AST, has an overall length of 43.5 inches.

Frequently Asked Questions

What is the ZURN 6-350AST double check backflow preventer used for?

The ZURN 6-350AST 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 process water applications where backflow protection is required.

What are the specifications of the ZURN 6-350AST backflow preventer?

The ZURN 6-350AST has a 6-inch pipe size with flange x flange connections and an overall length of 43.5 inches. It features an NRS gate valve shut-off type. The manufacturer part number is 6-350AST. This double check assembly is designed for reliable backflow prevention in high-flow systems.

Where to buy the ZURN 6-350AST backflow preventer worldwide?

You can source the ZURN 6-350AST double check backflow preventer through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. 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 orientation with adequate clearance for servicing. Ensure the flange connections are properly aligned and gasketed. Follow local plumbing codes and the manufacturer's instructions 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
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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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