Zurn 1-500XL3 Lead-Free High Capacity Commercial Grade Water Pressure Reducing Valve with Venturi

The Zurn Wilkins 1-500XL3 is a 1" lead-free pressure reducing valve with single union FNPT connections. It reduces inlet pressure of up to 400 psi to an adjustable 15-75 psi downstream, factory set at 50 psi. It features a lead-free bronze body. Rated to 400 psi and up to 140°F. This model is certified lead-free for potable-water installations.

The 500XL3 Pressure Reducing Valve works effectively for industrial water lines and commercial-grade solution, with high-flow rate capacity and low falloff. The patented integral venturi enables the valve to have best in-class flow performance. The all-bronze body, stainless-steel stem and cartridge internals provide superior corrosion resistance and increases product life offering the ultimate value to the owner. It delivers high-flow performance with low pressure drop, making it ideal for demanding water distribution environments.

Features

• Industry leading flow performance, durability, and premium materials of all direct-acting pressure reducing valves on the market
• Delivers best-in-class flow performance of all direct-acting pressure reducing valves allowing for value engineered design optimization
• Compact and shortest pressure reducing valve on the market allowing for installation versatility
• Highly durable, all-bronze body resists corrosion and provides easy access to cartridge internals
• Get smart pressure alerts with optional ZCSM-RP
• CSA® Certified
• Meets the requirements of NSF/ANSI/CAN 61 & 372

Common Questions

What pressure is it set to out of the box?

1-500XL3 ships factory set at 50 psi. The adjustable reduced-pressure range is 15 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?

No - 1-500XL3 does not have an integral strainer (this series relies on the integral by-pass check valve alone). On dirty or older supply lines, install a separate inline strainer (Zurn Wilkins SXL/FSC) upstream to keep debris off the seat.

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

1-500XL3 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: High Capacity Commercial Grade Water Pressure Reducing Valve with Venturi
• Size: 1"
• Inlet Size: 1"
• Outlet Size: 1"
• Connection: FNPT
• Body Material: Lead-Free Bronze
• Max Pressure (psi): 400
• Application: Domestic Water
• MPN: 1-500XL3
• Temperature: up to 140°F
• Certifications: ASSE-1003, IAPMO, CSA-B356, NSF-61, NSF-372
• Lead-Free: Yes
• Factory Set Pressure (psi): 50
• Adjustable Range - Min (psi): 15
• Adjustable Range - Max (psi): 75
• Thermal Expansion Bypass: Yes
• Integral Strainer: No
• Gauge: None
• Union Configuration: Single Union
• Capacity Class: High Capacity
• Regulated Media: Domestic Water
• Bell Housing: Standard