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The Wilkins 2-975XL2TCU is a reduced pressure principle backflow prevention assembly designed to protect potable water systems from contamination where a potential health hazard exists.

Key Specifications:

• Size: 2 Inches
• Maximum Working Water Pressure: 175 PSI
• Maximum Working Water Temperature: 180°F
• Notable Certifications: ASSE 1013, cUPC, CSA B64.4
• End Connections: Threaded ANSI B1.20.1

Other Related Variants:

• 1-975XL2TCU: 1 Inch model size
• 34-975XL2TCU: 3/4 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
• Elastomers: Buna Nitrile
• 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. For indoor installations, the installation shall be supplied with an air gap adapter.

Standards Compliance:

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

Features & Benefits:

• Health Hazard Protection: Provides protection against both backsiphonage and backpressure of contaminated water into potable water supply where a potential health hazard exists.
• Lead-Free Construction: Manufactured with low lead cast bronze meeting NSF/ANSI/CAN 61 and 372 requirements with less than 0.25% weighted average lead content.
• Easy Maintenance Access: First and second checks are accessible for maintenance without removing the relief valve or the entire device from the line, equipped with test cocks up configuration.
• Full Port Ball Valves: The Zurn 2-975XL2TCU includes full port QT ball valves for optimal flow performance and easy shut-off capability.

FAQ

Q: What is the required installation height for the Zurn 2-975XL2TCU?

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: Is an air gap fitting required for this backflow preventer?

A: Yes, if installed indoors, the installation shall be supplied with an air gap adapter to ensure proper drainage and prevent submersion of the unit.

Q: What pressure and temperature ratings does the 2-975XL2TCU handle?

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

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