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The Wilkins 3-500XLYSBR is a water pressure reducing valve with integral by-pass check valve, designed for commercial and industrial applications requiring reliable pressure control and thermal expansion protection.

Key Specifications:

• Size: 3 Inches
• Maximum Working Pressure: 300 psi
• Maximum Working Temperature: 140°F
• Notable Certifications: NSF/ANSI/CAN 61 & 372
• Connection Type: Less Union

Other Related Variants:

• 112-500XLYSBR: 1 1/2 Inches size
• 114-500XLYSBR: 1 1/4 Inches size
• 212-500XLYSBR: 2 1/2 Inches size
• 2-500XLYSBR: 2 Inches size
• 34-500XLYSBR: 3/4 Inches size
• 1-500XLYSBR: 1 Inches size

Materials:

• Main valve body and access covers: Low Lead Cast Bronze ASTM B 584
• Fasteners: Stainless Steel, 300 series
• Stem & plunger: Low Lead Cast Bronze ASTM B 584 and Low Lead Brass
• Elastomers: Buna Nitrile (FDA approved) and EPDM (FDA approved)
• Cap gaskets: Natural vulcanized fibre and Acetal (Delrin™ 500)
• Springs: Oil tempered wire, ASTM A 229
• Seat: Stainless Steel, 300 series
• Strainer: Lead-Free Bronze

Typical Installation:

Local codes shall govern installation requirements. Unless otherwise specified, 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 and 372

Features & Benefits:

• High Flow Capacity: Designed for industrial water lines and commercial systems with exceptional flow performance.
• Thermal Expansion Protection: Direct acting integral by-pass design prevents buildup of excessive system pressure caused by thermal expansion.
• Balanced Piston Design: Enables smooth and responsive reaction to changes in system flow demand while providing protection from inlet pressure changes.
• Integrated Y-Strainer: Lead-free bronze Y strainer on inlet provides enhanced filtration and system protection.

FAQ

Q: Can the Zurn 3-500XLYSBR be installed in any position?

A: Yes, the Zurn 3-500XLYSBR may be installed in any position. If installed in a pit, vault, or inside application, the "SC" sealed cage option is recommended.

Q: What is the factory preset pressure for the Wilkins 3-500XLYSBR?

A: The valve comes factory preset at 50 psi and is field adjustable within a reduced pressure range of 25 psi to 75 psi.

Q: How much clearance is needed for maintenance?

A: Sufficient side clearance must be provided for testing and maintenance. The assembly is accessible for maintenance without removing the body from the line. A downstream pressure gauge is recommended for adjustment verification.

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