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ZURNZurn Reduced-Pressure Zone Backflow Detectors

ZURN 6-350ASTDA Reduced-Pressure Zone Backflow Detector

The ZURN 350ASTDA is a reduced-pressure zone backflow detector with a 6-inch pipe size and flange connection. It features an OSY gate valve shut-off and is constructed from stainless steel. This assembly is designed…

SKU 3G-OTH-440277

Also listed as: 6350ASTDA · 6 350ASTDA

Brand
ZURN
Item
6-350ASTDA Reduced-Pressure Zone Backflow Detector
Category
Zurn Reduced-Pressure Zone Backflow Detectors
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Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

ZURN
Manufacturer Part Number
6-350ASTDA
Type
Flange, Stainless Steel
Pipe Size
6 in
Connection Type
Flange
Shut-Off Valve Type
OSY Gate Valve

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ZURN Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The ZURN 350ASTDA is a reduced-pressure zone backflow detector with a 6-inch pipe size and flange connection. It features an OSY gate valve shut-off and is constructed from stainless steel. This assembly is designed for backflow prevention in commercial water systems.

Frequently Asked Questions

What is the ZURN 6-350ASTDA backflow preventer used for?

The ZURN 6-350ASTDA is a reduced-pressure zone backflow detector used in commercial water systems to prevent contaminated water from flowing backward into the potable supply. It is commonly installed in fire sprinkler and irrigation systems where cross-connection control is required.

What are the specifications of the ZURN 6-350ASTDA?

The ZURN 6-350ASTDA has a 6 in pipe size, flange connection, and an OSY gate valve shut-off. It is constructed from stainless steel. This assembly is designed for backflow prevention in commercial water systems and is manufactured by ZURN.

Where to buy the ZURN 6-350ASTDA worldwide?

3G Electric supplies the ZURN 6-350ASTDA backflow preventer to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this model.

How to install a ZURN double check detector backflow preventer?

Installation should follow local plumbing codes and the manufacturer's instructions. Typically, the unit is mounted horizontally in a straight pipe run with adequate clearance for testing and maintenance. Ensure the flange connections are properly gasketed and bolted to avoid leaks.

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 reduced-pressure zone backflow detectors. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
Double check backflow preventer with 6-inch pipe size and flange x flange connections. Features NRS gate valve shut-off and overall length of 43.5 inches. Used in commercial and industrial water systems to prevent reverse flow contamination in fire sprinkler, irrigation, and process water applications
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Double check backflow preventer with 6-inch pipe size and flange x flange connections. Features NRS gate valve shut-off and overall length of 43.5 inches. Used in commercial and industrial water systems to prevent reverse flow contamination in fire sprinkler, irrigation, and process water applications
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Double check backflow preventer with 10-inch pipe size, flange x flange connections, and NRS gate valve shut-offs. Overall length 55.75 inches. Used in commercial and industrial water systems to prevent reverse flow of contaminated water into potable supply, commonly installed in fire sprinkler, irrigation, and high-hazard plumbing applications
Double check backflow preventer with 3-inch pipe size, flange x flange connections, and NRS gate valve shut-off. Overall length 32.88 inches. Used in cross-connections to prevent backflow of contaminated water into potable water supplies, such as in irrigation, fire sprinkler, and process water lines
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Double check backflow preventer with 3-inch pipe size, flange x flange connections, and NRS gate valve shut-off. Overall length 32.88 inches. Used in cross-connections to prevent backflow of contaminated water into potable water supplies, such as in irrigation, fire sprinkler, and process water lines
Double check backflow preventer with flange x flange connections and NRS gate valve shut-off valves. Pipe size 4 in, overall length 34.88 in. Used in commercial and industrial water systems to prevent reverse flow in non-health-hazard cross-connections such as fire sprinkler systems and irrigation lines
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Double check backflow preventer with flange x flange connections and NRS gate valve shut-off valves. Pipe size 4 in, overall length 34.88 in. Used in commercial and industrial water systems to prevent reverse flow in non-health-hazard cross-connections such as fire sprinkler systems and irrigation lines
The ZURN 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. This assembly is used in water supply systems to prevent reverse flow of contaminated water into the potable water supply, suitable for commercial and industrial applications such as fire sprinkler systems and irrigation lines
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The ZURN 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. This assembly is used in water supply systems to prevent reverse flow of contaminated water into the potable water supply, suitable for commercial and industrial applications such as fire sprinkler systems and irrigation lines
Double check backflow preventer with 2 1/2 in pipe size and flange x flange connections. Includes NRS gate valve shut-off. Designed for operating temperatures from 33°F to 140°F. Used in commercial and industrial plumbing systems to prevent backflow of contaminated water into potable water supplies
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Double check backflow preventer with 2 1/2 in pipe size and flange x flange connections. Includes NRS gate valve shut-off. Designed for operating temperatures from 33°F to 140°F. Used in commercial and industrial plumbing systems to prevent backflow of contaminated water into potable water supplies

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This ZURN reduced-pressure zone backflow detector is a 6-inch flanged assembly with a ductile iron body. It includes an OSY gate valve for shut-off. Used in commercial and industrial water systems to prevent reverse flow contamination, it is suitable for high-hazard cross-connections and fire sprinkler systems
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This ZURN reduced-pressure zone backflow detector is a 6-inch flanged assembly with a ductile iron body. It includes an OSY gate valve for shut-off. Used in commercial and industrial water systems to prevent reverse flow contamination, it is suitable for high-hazard cross-connections and fire sprinkler systems
This reduced-pressure zone backflow detector features a stainless steel body and flange connections for 4-inch piping. It is equipped with an OSY gate valve shut-off. Used in water systems to prevent reverse flow and protect potable water supplies
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This reduced-pressure zone backflow detector features a stainless steel body and flange connections for 4-inch piping. It is equipped with an OSY gate valve shut-off. Used in water systems to prevent reverse flow and protect potable water supplies
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This reduced-pressure zone backflow detector is designed for commercial and industrial water systems to prevent backflow of contaminated water into the potable supply. It features a 4-inch pipe size with flange connections and an OSY gate valve shut-off valve. The body is constructed of stainless steel, suitable for high-hazard cross-connections and fire sprinkler systems
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Reduced-pressure zone backflow detector with 8-inch pipe size and flange connections. Constructed with stainless steel body and equipped with OSY gate valve shut-off. Used in commercial, industrial, and municipal water systems to prevent backflow of contaminated water into potable supplies
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Reduced-pressure zone backflow detector assembly with flange connections and OSY gate valve shut-off. Constructed of ductile iron for water distribution systems requiring backflow prevention at cross-connections