Zurn Wilkins 70XL Water Pressure Reducing Valve – 3/4" & 1".

Product Overview

The Zurn Wilkins 70XL is a lead-free water pressure reducing valve (PRV) engineered for residential, commercial, and industrial potable water systems. Built with a durable bronze body and bell, this pressure reducer lowers high inlet pressure to a safe, consistent outlet level. The 70XL prevents excessive system pressure from thermal expansion with its integral bypass and ensures long-term reliability through a balanced piston design.

Available in 3/4" (34-70XL) and 1" (1-70XL) sizes, this PRV delivers smooth performance and easy serviceability thanks to its unitized, replaceable cartridge.

Features & Benefits

• Durable cast bronze body and bell for corrosion resistance

• Balanced piston design for smooth response to flow and pressure changes

• Integral bypass prevents pressure buildup from thermal expansion

• Replaceable cartridge reduces maintenance downtime

• Compliant with Lead-Free laws (NSF/ANSI/CAN 61 & 372)

• Single or double union connection options for flexible installation

• Factory preset at 50 psi, adjustable from 25–75 psi

Specifications

• Sizes: 3/4", 1"

• Max working pressure: 300 psi

• Max temperature: 140°F standard; 180°F at 100 psi with CPVC tailpiece

• Reduced pressure range: 25–75 psi (preset at 50 psi)

• Connections: FNPT (ANSI B1.20.1), copper sweat (ANSI B16.22), optional CPVC, press-fit, or push-fit tailpieces

• Materials: Bronze body, stainless steel seat & strainer, Buna-N and EPDM elastomers

• Certifications: ASSE 1003, IAPMO, CSA, City of Los Angeles Approved, NSF/ANSI/CAN 61 & 372

Installation Tips

• Install in accordance with local plumbing codes and manufacturer’s instructions

• Suitable for horizontal or vertical installation

• Allow adequate clearance for testing and maintenance

• Use sealed cage (SC) option for pit, vault, or indoor applications

• For high inlet pressure (more than 4:1 reduction), consider multiple PRVs in series

• Always verify outlet pressure with a downstream gauge after adjustment

FAQs

Q: What is the preset outlet pressure on the 70XL?
A: The valve comes factory-set at 50 psi but is adjustable from 25–75 psi.

Q: Can the 70XL handle hot water?
A: Yes, up to 140°F standard and 180°F at 100 psi with the CPVC tailpiece option.

Q: Does it meet lead-free compliance?
A: Yes, it is certified to NSF/ANSI/CAN 61 & 372 with less than 0.25% weighted average lead content.

Q: How do I maintain this PRV?
A: The replaceable cartridge design allows quick servicing without removing the entire valve.