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The Wilkins 2-500XLHLR is a water pressure reducing valve with integral by-pass check valve designed for industrial and commercial water systems requiring reliable pressure control and thermal expansion protection.

Key Specifications:

• Size: 2 Inches
• Maximum Working Pressure: 300 psi
• Maximum Working Temperature: 140°F
• Notable Certifications: ASSE 1003, cUPC, CSA B356
• Connection Type: Single Union FNPT

Other Related Variants:

• 112-500XLHLR: 1 1/2 Inches size
• 114-500XLHLR: 1 1/4 Inches size
• 1-500XLHLR: 1 Inch size
• 34-500XLHLR: 3/4 Inches size
• 3-500XLHLR: 3 Inches size

Materials:

• Main Valve Body: Low Lead Cast Bronze ASTM B 584
• Access Covers: Low Lead Cast Bronze ASTM B 584 / Low Lead Brass
• Fasteners: Stainless Steel, 300 Series
• Stem & Plunger: Low Lead Cast Bronze ASTM B 584 / Low Lead Brass
• Elastomers: Buna Nitrile (FDA approved) / EPDM (FDA approved)
• Cap Gaskets: Natural Vulcanized Fibre / Acetal (Delrin™ 500)
• Springs: Oil Tempered Wire, ASTM A 229
• Seat: Stainless Steel, 300 Series

Typical Installation:

Local codes shall govern installation requirements. The assembly shall be mounted in accordance with the manufacturers' instructions and the latest edition of the Uniform Plumbing Code. The assembly shall be installed with sufficient side clearance for testing and maintenance. The Model 500XL may be installed in any position. If installed in a pit, vault, or inside application, specify the "SC" sealed cage option. Multiple installations are recommend for wide demand variations or where the desired pressure reduction is more than 3 to 1 (i.e.: 150 psi inlet reduced to 50 psi outlet).

Standards Compliance:

ASSE Listed 1003; cUPC Listed; CSA Certified B356; City of Los Angeles Approved; NSF/ANSI/CAN 61; NSF/ANSI/CAN 372

Features & Benefits:

• High Flow Capacity: Balanced piston design provides smooth response to system flow demand changes, ideal for industrial and commercial applications.
• Thermal Expansion Protection: Direct acting integral by-pass design prevents excessive system pressure buildup caused by thermal expansion.
• Extended Pressure Range: The Zurn 2-500XLHLR features HLR option with 10 psi to 125 psi spring range, factory set at 50 psi for versatile applications.
• Flexible Installation: May be installed in any position with accessible maintenance without removing the body from the line.

FAQ

Q: What pressure reduction ratio is recommended for the Zurn Wilkins 2-500XLHLR?

A: The valve is recommended for pressure reductions not exceeding a 3:1 ratio. For greater reductions, multiple installations are recommended.

Q: Can the Wilkins 2-500XLHLR be installed in a pit or vault application?

A: Yes, when installed in a pit, vault, or inside application, specify the "SC" sealed cage option for proper protection.

Q: How do I adjust the outlet pressure on the valve?

A: A downstream pressure gauge must be used when adjusting the valve. Do not bottom the adjustment bolt on the bell housing. Adjust while monitoring the downstream gauge for correct pressure setting.

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