Zurn Wilkins 2-975XL2U 2" RPZ Backflow Preventer - Union Ball Valves, Lead-Free

Zurn Wilkins 2-975XL2U 2" RPZ Reduced Pressure Principle Backflow Preventer with Union Ball Valves (Lead-Free).

Product Overview

The Zurn Wilkins 2-975XL2U Reduced Pressure Principle Assembly (RPZA) Backflow Preventer is a trusted solution for protecting potable water systems against both backsiphonage and backpressure. Engineered with a compact wye-pattern design and union ball valves for easier installation and removal, the 975XL2U is favored by installers worldwide for its reliability and labor-saving design.

Constructed from lead-free bronze with corrosion-resistant internals, this backflow preventer is fully compliant with low-lead laws and designed to perform in demanding commercial, industrial, and institutional applications. The short lay length simplifies retrofits and replacements, making it one of the most cost-effective RPZ backflow assemblies on the market.

Features & Benefits

• Union Ball Valves – Allows quick installation, removal, and maintenance.

• Compact Wye-Pattern Design – Short lay length saves space and reduces labor costs.

• Durable Lead-Free Bronze Body – Corrosion-resistant and compliant with NSF/ANSI 61 standards.

• Easy Maintenance – First and second checks accessible without removing the relief valve or unit from the line.

• Proven Reliability – Industry-trusted design used worldwide for backflow prevention.

• Versatile Sizing – Also available in 3/4", 1", 1-1/4", and 1-1/2" sizes.

• Certified & Compliant – Meets ASSE® 1013, CSA® B64.4, AWWA C511, and USC Foundation approval standards.

Specifications

• Model: 2-975XL2U

• Size: 2"

• Body Material: Low-lead cast bronze (ASTM B 584)

• Internals: Noryl™, Delrin, Nylon, stainless steel springs

• Elastomers: Silicone and Buna-N (FDA approved)

• Maximum Working Pressure: 175 PSI

• Maximum Temperature: 180°F (82°C)

• Hydrostatic Test Pressure: 350 PSI

• End Connections: FNPT (ANSI B1.20.1 threaded)

• Standards Compliance: ASSE® 1013, IAPMO®, CSA® B64.4, AWWA C511, USC Foundation approved, NSF/ANSI 61, UL® Classified

Installation Tips

• Must be installed at least 12” above grade or floor drains, not exceeding 30”.

• Provide adequate clearance for testing and maintenance access.

• Follow Uniform Plumbing Code and local code requirements for positioning and drainage.

• For indoor installations, use an air gap adapter and monitor switch.

• Ensure no part of the assembly can be submerged.

FAQs

Q: What protection does the 975XL2U provide?
A: It protects against both backsiphonage and backpressure, making it suitable for high-hazard potable water applications.

Q: Why is the wye-pattern design important?
A: It reduces the overall lay length, saving space and lowering replacement labor costs.

Q: Can this be installed indoors?
A: Yes, but an air gap adapter and monitor switch are required for compliance and safety.

Q: Is this model lead-free?
A: Yes, it meets NSF/ANSI 61 with less than 0.25% weighted average lead content.