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The Wilkins 2-500XLYSBR is a water pressure reducing valve with integral by-pass check valve, designed for industrial and commercial water systems requiring reliable pressure regulation 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:

• 1/2-500XLYSBR: 1/2 Inch version
• 3/4-500XLYSBR: 3/4 Inch version
• 1-500XLYSBR: 1 Inch version
• 1 1/4-500XLYSBR: 1 1/4 Inch version
• 1 1/2-500XLYSBR: 1 1/2 Inch version
• 3-500XLYSBR: 3 Inch version

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
• Strainer (YSBR Option): 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 recommended 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:

• 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.
• High Flow Capacity: Optimized for industrial water lines and commercial water systems requiring reliable pressure reduction.
• Lead-Free Compliance: Includes lead-free bronze "Y" strainer on inlet (YSBR option), meeting NSF/ANSI/CAN 372 standards for potable water applications.

FAQ

Q: Can the Zurn 2-500XLYSBR be installed in any position?

A: Yes, the Model 500XL may be installed in any position. However, if installed in a pit, vault, or inside application, the "SC" sealed cage option should be specified.

Q: What is the factory preset pressure for the Wilkins 2-500XLYSBR?

A: The valve is factory preset at 50 psi and has an adjustable reduced pressure range of 25 psi to 75 psi. A downstream pressure gauge must be used when adjusting the pressure setting.

Q: What is the maximum pressure reduction ratio recommended for this valve?

A: Multiple installations are recommended where the desired pressure reduction is more than 3 to 1 (for example: 150 psi inlet reduced to 50 psi outlet).

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