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The Wilkins 112-975XL2S is a 3/4" reduced pressure principle backflow preventer with integrated bronze Y-type strainer, designed to protect potable water systems against backsiphonage and backpressure where health hazards exist.

Key Specifications:

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

Other Related Variants:

• 114-975XL2S: 1 1/4 Inches version with strainer
• 1-975XL2S: 1 Inch model with strainer
• 2-975XL2S: 2 Inches model with strainer
• 34-975XL2S: 3/4 Inches version with strainer

Materials:

• Low-lead cast bronze body (ASTM B584)
• Low-lead cast bronze access covers (ASTM B584)
• Stainless steel fasteners, 300 series
• Silicone elastomers
• Buna Nitrile elastomers
• Noryl™ polymers
• Stainless steel springs, 300 series
• Stainless steel ball valve handles

Typical Installation:

The Zurn 112-975XL2S shall be installed on potable water lines in accordance with local codes and manufacturer's instructions per the latest edition of the Uniform Plumbing Code. 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, ensuring no part of the unit can be submerged. Indoor installations require an air gap adapter.

Standards Compliance:

ASSE Listed 1013; cUPC Listed; CSA Certified B64.4; AWWA Compliant C511; NSF/ANSI/CAN 61 & 372 certified; UL Classified; C-UL Classified; Approved by the Foundation for Cross Connection Control and Hydraulic Research at the University of Southern California

Features & Benefits:

• Lead-Free Compliance: Certified to NSF/ANSI/CAN 61 & 372 with less than 0.25% weighted average lead content for safe potable water applications.
• Dual Protection: Guards against both backsiphonage and backpressure of contaminated water where potential health hazards exist.
• Integrated Strainer Protection: Bronze Y-type strainer provides debris protection to extend valve life and maintain optimal performance.
• Easy Maintenance Access: First and second checks are accessible for maintenance without removing the relief valve or entire device from the line.

FAQ

Q: What is the maximum working pressure and temperature for the Zurn 112-975XL2S?

A: The unit is rated for a maximum working water pressure of 175 PSI and maximum working water temperature of 180°F, with a hydrostatic test pressure of 350 PSI.

Q: Where should the Wilkins 112-975XL2S be installed?

A: Install the assembly 12 to 30 inches above adequate drainage with sufficient clearance for testing and maintenance. Indoor installations require an air gap adapter, and no part of the unit should be submerged.

Q: What certifications does this backflow preventer have?

A: The assembly is ASSE Listed 1013, cUPC Listed, CSA Certified B64.4, AWWA Compliant C511, NSF/ANSI/CAN 61 & 372 certified, and UL/C-UL Classified for comprehensive compliance.

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