NOTICE: Product images may vary from the actual item due to differences in size or configuration options.

The Wilkins 1-375XLB is a reduced pressure principle backflow preventer designed to protect potable water systems from backsiphonage and backpressure contamination. This model come with black fusion epoxy coated ball valves & struts for theft protection

Key Specifications:

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

Other Related Variants:

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

Materials:

• Reinforced Nylon housing (FDA approved)
• Low Lead Cast Bronze ball valves (ASTM B584)
• Delrin internals (NSF Listed)
• Nylon internals
• Buna Nitrile elastomers (FDA approved)
• Silicone elastomers (FDA approved)
• 300 series Stainless Steel fasteners
• 300 series Stainless Steel springs
• 300 series Stainless Steel struts
• Fusion Epoxy coating (FDA approved)

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" (305mm) and a maximum of 30" (762mm) 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.

Standards Compliance:

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

Features & Benefits:

• Health Hazard Protection: Provides protection against both backsiphonage and backpressure where potential health hazards exist in potable water systems.
• Lead-Free Compliance: Meets NSF/ANSI/CAN 372 standards with less than 0.25% weighted average lead content for safe drinking water applications.
• Theft Deterrent Coating: Durable black UV stabilized fusion epoxy coating applied to exterior bronze surfaces helps deter theft while maintaining durability.
• Versatile Installation Options: Suitable for both indoor and outdoor installations with available air gap adapter for indoor applications.

FAQ

Q: What is the hydrostatic test pressure rating for the Zurn 1-375XLB?

A: The Zurn 1-375XLB is hydrostatically tested to 350 PSI, ensuring reliable performance under demanding conditions.

Q: Can this backflow preventer be installed indoors?

A: Yes, the Wilkins 1-375XLB can be installed indoors. An air gap adapter should be supplied for indoor installations to ensure proper drainage.

Q: What type of valve shutoffs are included with this model?

A: The unit comes standard with full port QT ball valves for reliable shutoff capability and easy testing access.

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