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The Wilkins 12-375XLFT is a reduced pressure principle backflow preventer assembly designed to protect potable water systems against backsiphonage and backpressure contamination where health hazards exist.

Key Specifications:

• Size: 1/2 Inches
• Maximum Working Pressure: 175 psi
• Maximum Working Temperature: 180°F
• Notable Certifications: ASSE 1013, cUPC, CSA B64.4
• End Connections: FNPT Threads

Other Related Variants:

• 34-375XLFT: 3/4 Inches version
• 1-375XLFT: 1 Inches model size
• 112-375XLFT: 1 1/2 Inches version
• 2-375XLFT: 2 Inches model size

Materials:

• Housing: Reinforced Nylon (FDA approved)
• Fasteners: Stainless Steel, 300 Series
• Springs: Stainless Steel, 300 Series
• Ball Valves: Low Lead Cast Bronze, ASTM B 584
• Elastomers: Silicone (FDA Approved)
• Elastomers: Buna Nitrile (FDA Approved)
• Internals: Delrin
• Internals: Nylon
• Struts: Stainless Steel, 300 Series

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 Zurn 12-375XLFT 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. If installed indoors, the installation shall be supplied with an air gap adapter.

Standards Compliance:

ASSE Listed 1013; cUPC Listed; CSA Certified B64.4; AWWA compliant C511; USC Foundation Approved; NSF/ANSI/CAN 61 & 372

Features & Benefits:

• Lead-Free Compliance: Meets NSF/ANSI/CAN 372 with less than 0.25% weighted average lead content, ideal for potable water applications.
• Dual Protection: Protects against both backsiphonage and backpressure of contaminated water into potable water supply systems.
• Durable Construction: FDA-approved reinforced nylon housing with stainless steel components ensures long-lasting performance and corrosion resistance.
• Integrated Test Fitting: Features integral male 45° flare SAE test fitting for convenient testing and maintenance procedures.

FAQ

Q: What is the required installation height for the Zurn 12-375XLFT?

A: The assembly must be installed at a minimum of 12 inches and a maximum of 30 inches above adequate floor drains with sufficient side clearance for testing and maintenance.

Q: Can this backflow preventer be submerged or installed outdoors?

A: No, the unit must not be submerged. For indoor installations, an air gap adapter is required. For outdoor applications, a protective enclosure is recommended.

Q: What is the maximum working pressure and temperature for the 12-375XLFT?

A: The maximum working water pressure is 175 psi, maximum working water temperature is 180°F, and hydrostatic test pressure is 350 psi.

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