Zurn 34-20XLDU 3/4" Lead-Free Water Pressure Reducing Valve with Integral Strainer with Integral PEX Connections (Optional)

The Zurn Wilkins 34-20XLDU is a 3/4" lead-free pressure reducing valve with double union FNPT connections. It reduces inlet pressure of up to 300 psi to an adjustable 25-75 psi downstream, factory set at 50 psi. It features a lead-free bronze body. Rated to 300 psi and up to 140°F. This model is certified lead-free for potable-water installations.

This versatile, compact Wilkins 20XL pressure reducing valve is ideal for residential applications. The short lay length means it’s perfect for tight spaces and retrofit applications. Designed to reduce pressure on potable water lines for lower outlet pressure, saving water and lowering energy costs. The integrated stainless steel screen filters out debris. Threaded on bell housing and corrosion-resistant composite cartridge make it easy to access and clean out sediment. Simple to install, maintain and repair.

Features

• Inexpensive, durable and versatile – an excellent value for residential construction and replacement
• Wide range of connection options fits nearly every residential need
• Integral stainless steel strainer stops debris
• Helps conserve water and lower energy costs
• Threaded bell housing offers easy access for repairs
• Chemical-resistant cartridge and a durable, threaded, UV-resistant bell housing
• ASSE 1003 Listed, cUPC listed, CSA certified B356, meets requirements of NSF/ANSI 61, Safe Drinking Water Act compliant
• Can be installed in any position

Common Questions

What pressure is it set to out of the box?

34-20XLDU ships factory set at 50 psi. The adjustable reduced-pressure range is 25 to 75 psi, so you can dial the outlet anywhere in that band on site with the adjusting bolt - loosen the locknut, turn to raise or lower pressure, retighten and verify with a downstream gauge.

Does it include a strainer?

Yes - 34-20XLDU has an integral strainer built into the body, so a separate inline strainer ahead of it is not required. It is accessible for cleaning without removing the valve from the line.

Does it have a built-in bypass for thermal expansion, or do I still need an expansion tank?

34-20XLDU includes an integral thermal-expansion bypass that relieves excess downstream pressure back toward the supply when street pressure is lower. It is not a substitute for a properly sized expansion tank where your local code requires one - the bypass only relieves back to the street when street pressure is lower than the closed-system pressure.

Specifications

• Type: Water Pressure Reducing Valve with Integral Strainer with Integral PEX Connections (Optional)
• Size: 3/4"
• Inlet Size: 3/4"
• Outlet Size: 3/4"
• Connection: FNPT
• Body Material: Lead-Free Bronze
• Max Pressure (psi): 300
• Application: Domestic Water
• MPN: 34-20XLDU
• Temperature: up to 140°F
• Certifications: ASSE-1003, IAPMO, CSA-B356, NSF-61
• Lead-Free: Yes
• Factory Set Pressure (psi): 50
• Adjustable Range - Min (psi): 25
• Adjustable Range - Max (psi): 75
• Thermal Expansion Bypass: Yes
• Integral Strainer: Yes
• Gauge: None
• Union Configuration: Double Union
• Capacity Class: Standard
• Regulated Media: Domestic Water
• Bell Housing: Standard