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The Wilkins 38-975XL2 is a lead-free reduced pressure principle backflow prevention assembly designed to protect potable water supplies from contamination where a potential health hazard exists.

Key Specifications:

• Size: 3/8 Inches
• Maximum Working Water Pressure: 175 PSI
• Maximum Working Water Temperature: 180°F
• Notable Certifications: ASSE 1013, IAPMO, CSA B64.4
• End Connections: Threaded ANSI B1.20.1

Other Related Variants:

• 12-975XL2: 1/2 Inch model size
• 14-975XL2: 1/4 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. 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; NSF/ANSI 61 (0.25% MAX. WEIGHTED AVERAGE LEAD CONTENT)

Features & Benefits:

• Lead-Free Protection: Meets NSF/ANSI 61 with 0.25% maximum weighted average lead content, ideal for potable water applications requiring lead-free compliance.
• Dual Protection: Protects against both backsiphonage and backpressure of contaminated water into the potable water supply where potential health hazards exist.
• Easy Maintenance Access: Checks oriented at 45° angle upward and accessible for maintenance without removing the relief valve or entire device from the line.
• Full Port QT Ball Valves: Standard full port QT ball valves included for efficient flow control and testing convenience.

FAQ

Q: What is the required installation height for the Zurn 38-975XL2?

A: The assembly 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: Does the Zurn 38-975XL2 require additional components for indoor installation?

A: Yes, for indoor installations, an air gap and "Y" type strainer are required to ensure proper operation and code compliance.

Q: What is the maximum working pressure and temperature for the Wilkins 38-975XL2?

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

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