Zurn Wilkins 500XL Water Pressure Reducing Valve with By-Pass (PRV).
Product Overview
The Zurn Wilkins 500XL Pressure Reducing Valve is designed to regulate and maintain safe water pressure in potable water systems. Built with a balanced piston design, it reacts smoothly to flow demand while protecting against fluctuations in inlet pressure. Its integral by-pass check valve relieves excess pressure caused by thermal expansion, safeguarding plumbing fixtures, appliances, and piping from damage.
Engineered for commercial plumbing systems and industrial water lines, the 500XL provides consistent performance and a high flow capacity. With a durable bronze body and corrosion-resistant internals, it is built for long-term reliability while meeting lead-free requirements.
Features & Benefits
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Wide Range of Sizes – Available in 1/2", 3/4", 1", 1-1/4", 1-1/2", and 2" sizes.
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Pressure Regulation – Adjustable outlet range of 25–75 PSI, factory preset to 50 PSI.
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Durable Construction – Lead-free bronze body with corrosion-resistant components ensures longevity.
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Thermal Expansion Protection – Integral by-pass design prevents pressure buildup in closed systems.
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Consistent Flow – Balanced piston provides smooth regulation across varying system demands.
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Certified & Compliant – ASSE® 1013, CSA® B356, cUPC® listed, City of Los Angeles approved, and NSF/ANSI/CAN 61 & 372 certified.
Specifications
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Sizes: 1/2", 3/4", 1", 1-1/4", 1-1/2", 2"
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Maximum Working Pressure: 300 PSI
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Maximum Temperature: 140°F (60°C)
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Reduced Pressure Range: 25–75 PSI
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Factory Preset: 50 PSI
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Inlet/Outlet: Single union FNPT inlet x FNPT outlet
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Body Material: Lead-free bronze
Installation Tips
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Install on potable water lines requiring regulated pressure.
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Can be mounted in either horizontal or vertical piping runs.
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Always verify downstream pressure with a gauge during adjustment.
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For high-demand or large-scale systems, consider multiple installations to ensure balanced flow.
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Follow local plumbing codes and manufacturer installation instructions for compliance.
FAQs
Q: What does the by-pass function do?
A: The integral by-pass prevents excessive pressure buildup from thermal expansion, helping to protect against backflow risks.
Q: Can the 500XL be used in residential systems?
A: Yes, it is suitable for both residential and commercial potable water lines.
Q: Does this valve meet lead-free standards?
A: Yes, it meets NSF/ANSI/CAN 61 and 372 standards with less than 0.25% lead content.
Q: Is the pressure adjustable?
A: The outlet pressure can be adjusted between 25–75 PSI, with a factory preset of 50 PSI.
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