The Wilkins 14-975XL2 is a reduced pressure principle backflow prevention assembly designed to protect potable water lines against backsiphonage and backpressure where potential health hazards exist.

Key Specifications:

• Size: 1/4 Inches
• Maximum Working Water Pressure: 175 PSI
• Maximum Working Water Temperature: 180°F
• Notable Certifications: ASSE 1013, IAPMO Listed, CSA B64.4
• End Connections: Threaded ANSI B1.20.1

Other Related Variants:

• 12-975XL2: 1/2 Inch model size
• 38-975XL2: 3/8 Inch model size

Materials:

• Main Valve Body: Low Lead Cast Bronze ASTM B 584
• Access Covers: Low Lead Cast Bronze ASTM B 584
• Fasteners: Stainless Steel, 300 Series
• Elastomers: Silicone (FDA Approved)
• Elastomers: Buna Nitrile (FDA Approved)
• Polymers: Noryl™
• Springs: Stainless Steel, 300 Series
• 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 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 or where relief valve discharge could cause damage. If installed indoors, the installation shall be supplied with an air gap and "Y" type strainer.

Standards Compliance:

ASSE Listed 1013; IAPMO Listed; CSA Certified B64.4; Approved by the Foundation for Cross Connection Control and Hydraulic Research at the University of Southern California; Meets the requirements of NSF/ANSI 61 (0.25% MAX. WEIGHTED AVERAGE LEAD CONTENT)

Features & Benefits:

• Lead-Free Construction: Meets NSF/ANSI 61 standards with 0.25% maximum weighted average lead content, ideal for potable water applications.
• Health Hazard Protection: Provides protection against both backsiphonage and backpressure of contaminated water where potential health hazards exist.
• Full Port QT Ball Valves: Standard full port QT ball valves included for reliable shut-off and ease of testing.
• Accessible Check Valves: Checks oriented at 45° angle upward and accessible for maintenance without removing the relief valve or entire device from the line.

FAQ

Q: What is the required installation height for the Zurn 14-975XL2?

A: The Wilkins 14-975XL2 must 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.

Q: Is an air gap required for indoor installations?

A: Yes, for indoor installations, the Zurn 14-975XL2 installation shall be supplied with an air gap and "Y" type strainer as specified in the installation requirements.

Q: What is the maximum working pressure and temperature for this assembly?

A: The assembly has a maximum working water pressure of 175 PSI and a maximum working water temperature of 180°F, with a hydrostatic test pressure of 350 PSI.

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