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

The Wilkins 112-975XL3U is a 1 1/2" reduced pressure principle backflow prevention assembly designed to protect potable water systems against health hazards.

Key Specifications:

• Size: 1 1/2 Inches
• Maximum Working Pressure: 175 PSI
• Maximum Working Temperature: 180°F
• Notable Certifications: ASSE 1013, cUPC, CSA B64.4
• End Connections: Female NPT Threaded

Other Related Variants:

• 1-975XL3U: 1 Inch version with union ball valves
• 2-975XL3U: 2 Inch version with union ball valves
• 34-975XL3U: 3/4 Inch version with union ball valves

Materials:

• Main valve body: Low Lead Cast Bronze ASTM B584
• Access covers: Low Lead Cast Bronze ASTM B584
• Fasteners: 300 Series Stainless Steel
• Elastomers: Silicone (FDA Approved)
• Elastomers: Buna Nitrile (FDA Approved)
• Polymers: Noryl™
• Springs: 300 Series Stainless Steel
• Ball valve handles: Stainless Steel

Typical Installation:

Local codes shall govern installation requirements. To be installed in accordance with the manufacturers' instructions and the latest edition of the Uniform Plumbing Code. Unless otherwise specified, the assembly shall be mounted at a minimum of 12" (305mm) and a maximum of 30" (762mm) 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.

Standards Compliance:

ASSE Listed 1013; cUPC Listed; CSA Certified B64.4; UL Classified; C-UL Classified; AWWA Compliant C511; Meets NSF/ANSI/CAN 61 & 372

Features & Benefits:

• Lead-Free Protection: Certified to NSF/ANSI/CAN 61 and 372 with less than 0.25% weighted average lead content for safe potable water applications.
• Dual Protection Design: Protects against both backsiphonage and backpressure of contaminated water into potable water supply systems.
• Easy Maintenance Access: First and second checks accessible through single cover without removing relief valve or entire device from line.
• Durable Construction: Low lead cast bronze body with 300 series stainless steel fasteners and springs ensures long-lasting performance.

FAQ

Q: What pressure range is the Zurn 112-975XL3U rated for?

A: The Zurn 112-975XL3U operates within a working pressure range of 25 PSI minimum to 175 PSI maximum, with a hydrostatic test pressure of 350 PSI.

Q: What is the difference between the 112-975XL3U and standard 975XL3 models?

A: The "U" suffix indicates the unit comes equipped with union ball valves instead of standard ball valves, providing easier installation and removal for maintenance.

Q: Can this backflow preventer be installed outdoors?

A: Yes, the unit can be installed outdoors but must be protected with a proper enclosure and installed 12" to 30" above adequate drains to prevent submersion and freeze damage.

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