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The Wilkins 112-500XLHR is a high-performance water pressure reducing valve with an integral by-pass check valve, designed for industrial and commercial water systems requiring reliable pressure control and thermal expansion protection.

Key Specifications:

• Size: 1 1/2 Inches
• Maximum Working Water Pressure: 300 psi
• Maximum Working Water Temperature: 140°F
• Notable Certifications: ASSE 1003, cUPC, CSA B356
• Connection Type: Single Union FNPT

Other Related Variants:

• 114-500XLHR: 1 1/4 Inch version
• 1-500XLHR: 1 Inch version
• 212-500XLHR: 2 1/2 Inch version
• 2-500XLHR: 2 Inch version
• 3-500XLHR: 3 Inch version

Materials:

• Low Lead Cast Bronze Body (ASTM B 584)
• Low Lead Brass Components
• Stainless Steel Fasteners (300 Series)
• Stainless Steel Seat (300 Series)
• Buna Nitrile Elastomers (FDA Approved)
• EPDM Elastomers (FDA Approved)
• Oil Tempered Wire Spring (ASTM A 229)
• Natural Vulcanized Fibre Cap Gaskets
• Acetal Cap Gaskets (Delrin™ 500)

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). Anytime a reducing valve is adjusted, a pressure gauge must be used downstream to verify correct pressure setting.

Standards Compliance:

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

Features & Benefits:

• High Pressure Range with HR Option: The Zurn 112-500XLHR features a 75 psi to 125 psi spring range, factory set at 85 psi, ideal for applications requiring higher outlet pressures than standard models.
• Thermal Expansion Protection: The direct acting integral by-pass check valve design prevents buildup of excessive system pressure caused by thermal expansion, protecting your plumbing system.
• Balanced Piston Design: Provides smooth and responsive reaction to changes in system flow demand while offering protection from inlet pressure changes for consistent performance.
• Versatile Installation: Can be installed in any position with sufficient side clearance, suitable for industrial water lines and commercial water systems with high flow capacity requirements.

FAQ

Q: What is the pressure range difference between the 112-500XLHR and standard 112-500XL models?

A: The Wilkins 112-500XLHR features the HR (High Range) option with a 75 psi to 125 psi spring range factory set at 85 psi, while the standard model has a 25 psi to 75 psi range factory set at 50 psi.

Q: Can the 112-500XLHR be installed vertically or horizontally?

A: Yes, the Zurn 112-500XLHR may be installed in any position. However, if installed in a pit, vault, or inside application, the "SC" sealed cage option should be specified for optimal performance.

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

A: Multiple installations are recommended where the desired pressure reduction exceeds a 3:1 ratio (for example, reducing from 150 psi inlet to 50 psi outlet). A downstream pressure gauge must be used when adjusting the valve.

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