NOTICE: Product images may vary from the actual item due to differences in size or configuration options.

The Wilkins 34-975XL2SEOS is a reduced pressure principle backflow preventer designed to protect potable water systems from backsiphonage and backpressure hazards.

Key Specifications:

• Size: 3/4 Inches
• Maximum Working Water Pressure: 175 PSI
• Maximum Working Water Temperature: 180°F
• Notable Certifications: ASSE 1013, CSA B64.4
• End Connections: FNPT Threaded

Other Related Variants:

• None

Materials:

• Body: Low Lead Cast Bronze (ASTM B 584)
• Access Covers: Low Lead Cast Bronze (ASTM B 584)
• Check Bodies: Engineered Polymer (Noryl™)
• Fasteners: Stainless Steel, 300 Series
• Elastomers: Silicone, Buna Nitrile
• Springs: Stainless Steel, 300 Series
• Ball Valve Handles: Stainless Steel
• Ball Valves: Full Port Bronze
• Street Elbows: Bronze

Typical Installation:

The Zurn 34-975XL2SEOS shall be installed horizontally in accordance with manufacturers' instructions and the latest edition of the Uniform Plumbing Code. The assembly shall be mounted at a minimum of 12 inches and a maximum of 30 inches above adequate drains with sufficient side clearance for testing and maintenance. The installation shall be made so that no part of the unit can be submerged. Indoor installations shall be supplied with an air gap adapter.

Standards Compliance:

ASSE 1013; cUPC Listed; CSA B64.4; AWWA C511; USC FCCCHR Approved; NSF/ANSI/CAN 61 & 372; UL Classified; C-UL Classified

Features & Benefits:

• Compact Installation: SEOS option features very short street elbows for reduced installation length, ideal for confined spaces.
• Full Port QT Ball Valves: Provides unrestricted flow and easy servicing with quick-turn operation.
• Lead-Free Construction: Meets NSF/ANSI/CAN 372 requirements with less than 0.25% weighted average lead content for potable water safety.
• Dual Hazard Protection: Certified to protect against both backsiphonage and backpressure in health hazard applications.

FAQ

Q: What is the minimum clearance required for installation?

A: The assembly must be mounted 12 inches minimum and 30 inches maximum above adequate drains with sufficient side clearance for testing and maintenance.

Q: Can this backflow preventer be installed outdoors?

A: Yes, the Zurn 34-975XL2SEOS can be installed outdoors with an optional protective enclosure as shown in the installation diagrams.

Q: What is the hydrostatic test pressure rating?

A: The assembly is rated for a hydrostatic test pressure of 350 PSI, significantly exceeding the maximum working pressure of 175 PSI.

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