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The Wilkins 114-NR3XL is a lead-free water pressure reducing valve designed for residential and commercial applications requiring reliable pressure control with integral by-pass check valve and strainer.

Key Specifications:

• Size: 1 1/4 Inches
• Maximum Working Water Pressure: 400 psi
• Maximum Working Water Temperature: 140°F
• Notable Certifications: ASSE 1003, IAPMO, CSA, NSF/ANSI/CAN 61
• Threaded Connections: FNPT ANSI B1.20.1
  

Other Related Variants:

• 12-NR3XL: 1/2 Inch version
• 34-NR3XL: 3/4 Inch version
• 1-NR3XL: 1 Inch version
• 112-NR3XL: 1 1/2 Inch version
• 2-NR3XL: 2 Inch version

Materials:

• Main Valve Body: Low Lead Cast Bronze ASTM B 584
• Bell Housing: UV Resistant Polymer Composite
• Internals: 300 Series Stainless Steel
• Stem: Low Lead Brass
• Elastomers: EPDM (FDA Approved)
• Elastomers: Buna Nitrile (FDA Approved)
• Cartridge: Delrin™
• Springs: 302 Stainless Steel
• Strainer Screen: 300 Series Stainless Steel

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 Wilkins 114-NR3XL may be installed in any position. The assembly shall be installed with sufficient side clearance for testing and maintenance. Multiple installations are recommended for wide demand variations or where the desired pressure reduction is more than 4 to 1. 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 Listed; IAPMO Listed; CSA Certified; NSF/ANSI/CAN 61 (0.25% Max Weighted Average Lead Content)

Features & Benefits:

• Integral By-Pass Check Valve: Prevents buildup of excessive system pressure caused by thermal expansion, protecting downstream fixtures and appliances.
• Balance Piston Design: Provides smooth and responsive regulation to changes in system flow demand while offering protection from inlet pressure changes.
• Integral Strainer: Removes sediment and debris, making the Zurn 114-NR3XL ideal for residential and commercial water systems requiring frequent cleaning.
• Lead-Free Construction: Meets NSF/ANSI/CAN 61 standards with 0.25% maximum weighted average lead content for safe potable water applications.

FAQ

Q: Can the Zurn 114-NR3XL be installed in any orientation?

A: Yes, the NR3XL may be installed in any position. However, sufficient side clearance must be provided for testing and maintenance access.

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

A: For optimal performance, pressure reductions should not exceed a 4:1 ratio. For greater reductions, multiple installations in series are recommended.

Q: How do I adjust the outlet pressure on the Wilkins 114-NR3XL?

A: Always use a downstream pressure gauge when adjusting the valve. Turn the adjustment bolt to achieve the desired pressure setting. Do not bottom the adjustment bolt on the bell housing.

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