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The Wilkins 1-500XLHR is a water pressure reducing valve with integral by-pass check valve, designed for industrial and commercial water systems requiring high flow capacity and reliable pressure control.

Key Specifications:

• Size: 1 Inches
• Maximum Working Water Pressure: 300 psi
• Maximum Working Water Temperature: 140°F
• Pressure Range (HR Option): 75-125 psi, factory set at 85 psi
• Notable Certifications: ASSE 1003, cUPC, CSA B356, NSF/ANSI/CAN 61 & 372

Other Related Variants:

• 112-500XLHR: 1/2 Inches model size
• 114-500XLHR: 3/4 Inches model size
• 212-500XLHR: 2 Inches model size
• 2-500XLHR: 2 Inches version
• 3-500XLHR: 3 Inches version

Materials:

• Body: Low Lead Bronze/Brass (ASTM B 584)
• Access Covers: Low Lead Cast Bronze (ASTM B 584)
• Fasteners: Stainless Steel (300 Series)
• Stem & Plunger: Low Lead Cast Bronze (ASTM B 584)
• Elastomers: Buna Nitrile (FDA approved)
• Elastomers: EPDM (FDA approved)
• Cap Gaskets: Natural Vulcanized Fibre
• Cap Gaskets: Acetal (Delrin 500)
• Springs: Oil Tempered Wire (ASTM A 229)
• Seat: Stainless Steel (300 Series)

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 Zurn 1-500XLHR 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 ratio. A pressure gauge must be used downstream to verify correct pressure setting.

Standards Compliance:

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

Features & Benefits:

• High Flow Capacity: The Zurn 1-500XLHR features a balanced piston design ideal for industrial water lines and commercial water systems with high demand requirements.
• Thermal Expansion Protection: Direct acting integral by-pass design prevents buildup of excessive system pressure caused by thermal expansion.
• Smooth Pressure Control: Balanced piston design enables the regulator to react smoothly and responsively to changes in system flow demand while protecting against inlet pressure fluctuations.
• Flexible Installation: Can be installed in any position with single union connection for easy maintenance access.

FAQ

Q: What is the pressure range for the 1-500XLHR model with HR option?

A: The HR option provides a spring range of 75 psi to 125 psi and comes factory set at 85 psi, suitable for applications requiring higher outlet pressures than the standard 25-75 psi range.

Q: Can the Wilkins 1-500XLHR be installed vertically?

A: Yes, the Model 500XL may be installed in any position. For pit, vault, or inside installations, it is recommended to specify the "SC" sealed cage option for added protection.

Q: What connection type does the 1 inch model feature?

A: The 1 inch 1-500XLHR features single union FNPT (Female National Pipe Thread) inlet x FNPT outlet connection conforming to ANSI B1.20.1 standards.

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