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The Wilkins 114-500XLHR is a high-performance water pressure reducing valve with integral by-pass check valve, designed for commercial and industrial water systems requiring reliable pressure control.

Key Specifications:

• Size: 1 1/4 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:

• 112-500XLHR: 1/2 Inches model size
• 1-500XLHR: 1 Inches model size
• 212-500XLHR: 2 1/2 Inches model size
• 2-500XLHR: 2 Inches model size
• 3-500XLHR: 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 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 1003; cUPC; CSA B356; City of Los Angeles; NSF/ANSI/CAN 61; NSF/ANSI/CAN 372

Features & Benefits:

• High Pressure Spring Range: The Zurn 114-500XLHR features HR Option with 75 to 125 psi spring range, factory set at 85 psi, ideal for applications requiring higher outlet pressures.
• Thermal Expansion Protection: Direct acting integral by-pass design prevents buildup of excessive system pressure caused by thermal expansion.
• Balanced Piston Design: Provides smooth and responsive reaction to changes in system flow demand while protecting against inlet pressure fluctuations.
• Versatile Installation: Can be installed in any position with single union connection for easier maintenance and serviceability.

FAQ

Q: What is the pressure reduction range for the Wilkins 114-500XLHR?

A: The Zurn 114-500XLHR with HR option has a spring range of 75 psi to 125 psi and comes factory set at 85 psi. This makes it suitable for applications requiring higher outlet pressures compared to the standard 25-75 psi range.

Q: Can this valve be installed in any orientation?

A: Yes, the Model 500XL can be installed in any position. However, if installed in a pit, vault, or inside application, you should specify the "SC" sealed cage option for optimal performance.

Q: What is the maximum recommended pressure reduction ratio?

A: Multiple installations are recommended where the desired pressure reduction is more than 3 to 1 ratio (e.g., 150 psi inlet reduced to 50 psi outlet). For greater reductions, consider a battery installation with multiple valves.

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