The Wilkins 2-500XL is a water pressure reducing valve with integral by-pass check valve designed for high-capacity industrial and commercial water systems to reduce inlet pressure and prevent thermal expansion.

Key Specifications:

• Size: 2 Inches
• Maximum Working Pressure: 300 psi
• Maximum Working Temperature: 140°F
• Notable Certifications: ASSE 1003, NSF/ANSI/CAN 61 & 372
• Threaded connections (FNPT): ANSI B1.20.1
  

Other Related Variants:

• 1/2-500XL: 1/2 Inches model size
• 3/4-500XL: 3/4 Inches model size
• 1-500XL: 1 Inches model size
• 1 1/4-500XL: 1 1/4 Inches model size
• 1 1/2-500XL: 1 1/2 Inches model size
• 2 1/2-500XL: 2 1/2 Inches model size
• 3-500XL: 3 Inches model 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. 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 Zurn 2-500XL 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 (1/2" thru 2 1/2"); cUPC Listed (1/2" thru 2"); CSA Certified B356 (1/2" thru 2"); City of Los Angeles Approved (1/2" thru 2"); NSF/ANSI/CAN 61; NSF/ANSI/CAN 372

Features & Benefits:

• Balanced Piston Design: Provides smooth, responsive reaction to system flow demand changes while protecting against inlet pressure variations.
• Integral By-pass Check Valve: Prevents buildup of excessive system pressure caused by thermal expansion with direct acting design.
• High Flow Capacity: Ideal for industrial water lines and commercial water systems requiring significant flow rates.
• Versatile Installation: Can be installed in any position with accessible maintenance without removing body from line.

FAQ

Q: Can the Wilkins 2-500XL be installed in any orientation?

A: Yes, the Zurn 2-500XL may be installed in any position. For pit, vault, or inside applications, specify the "SC" sealed cage option.

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

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

Q: How do I adjust the downstream pressure on this valve?

A: Use a downstream pressure gauge to verify correct pressure setting when adjusting. Do not bottom the adjustment bolt on bell housing. The valve comes factory preset at 50 psi with a reduced pressure range of 25-75 psi.

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