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The Wilkins 1-600XLHR is a water pressure reducing valve with integral by-pass check valve and strainer, designed for residential and commercial potable water applications requiring reliable pressure control and thermal expansion protection.

Key Specifications:

• Size: 1 Inches
• Pressure Range (HR Option): 75 psi to 125 psi
• Maximum Working Water Pressure: 300 psi
• Maximum Working Water Temperature: 140°F
• Notable Certifications: ASSE 1003, IAPMO, CSA

Other Related Variants:

• 1/2-600XLHR: 1/2 Inches version
• 3/4-600XLHR: 3/4 Inches version
• 1 1/4-600XLHR: 1 1/4 Inches version
• 1 1/2-600XLHR: 1 1/2 Inches version
• 2-600XLHR: 2 Inches 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)
• Strainer Screen: Stainless Steel, 300 Series
• 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 latest edition of the Uniform Plumbing Code. The Zurn 1-600XLHR 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 4 to 1 (i.e.: 200 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. Do not bottom adjustment bolt on bell housing.

Standards Compliance:

ASSE 1003; IAPMO Listed; CSA Certified; City of Los Angeles Approved; NSF/ANSI/CAN 61

Features & Benefits:

• Integral By-Pass & Strainer: Prevents excessive pressure buildup from thermal expansion while filtering debris, ideal for residential and commercial systems requiring frequent cleaning.
• Balanced Piston Design: Provides smooth, responsive pressure regulation during flow demand changes and protection from inlet pressure fluctuations.
• Low Lead Construction: Complies with NSF/ANSI/CAN 61 for safe potable water use with durable bronze and brass materials.
• Flexible Installation: Can be mounted in any position with single union connection for easy maintenance and service access.

FAQ

Q: What is the factory preset pressure for the 1-600XLHR model?

A: The HR option comes factory set at 85 psi with an adjustable spring range of 75 psi to 125 psi.

Q: Can the Wilkins 1-600XLHR be installed vertically or horizontally?

A: Yes, the Model 600XL may be installed in any position. For pit or vault installations, specify the "SC" sealed cage option.

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

A: Multiple installations are recommended for pressure reductions exceeding a 4:1 ratio to ensure optimal performance and longevity.

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