The Wilkins 114-NR3XLDUC is a lead-free water pressure reducing valve with integral by-pass check valve and strainer for residential and commercial systems.

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
• Connection Type: Double Union FC

Other Related Variants:

• 12-NR3XLDUC: 1/2 Inches model size
• 34-NR3XLDUC: 3/4 Inches model size
• 1-NR3XLDUC: 1 Inches model size
• 112-NR3XLDUC: 1 1/2 Inches model size
• 2-NR3XLDUC: 2 Inches model size

Materials:

• Main Valve Body: Low Lead Cast Bronze ASTM B584
• Bell Housing: UV Resistant Polymer Composite
• Internals: 300 Series Stainless Steel
• Stem: Low Lead Brass
• Elastomers: EPDM (FDA approved) and 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 Zurn 114-NR3XLDUC 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 (ie: 200 psi inlet reduced to 50 psi outlet). CAUTION: 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 Listed 1003; IAPMO Listed; CSA Certified; NSF/ANSI/CAN 61 (0.25% Max Weighted Average Lead Content)

Features & Benefits:

• Integral Strainer and By-Pass Check Valve: Provides sediment filtration and prevents excessive system pressure buildup from thermal expansion in a single compact unit.
• Balance Piston Design: Ensures smooth, responsive adjustment to system flow demand changes while protecting against inlet pressure fluctuations.
• Lead-Free Construction: Certified to NSF/ANSI/CAN 61 with 0.25% maximum weighted average lead content for safe use in potable water systems.
• Accessible Maintenance: Sealed cage washer and corrosion-resistant adjustment components allow servicing without removing the valve from the line, suitable for below-ground pit installations.

FAQ

Q: Can the Zurn 114-NR3XLDUC be installed in any orientation?

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

Q: What is the factory preset pressure for this valve?

A: The valve comes factory preset at 50 psi and is adjustable within a range of 15 to 75 psi. Always use a downstream pressure gauge when making adjustments.

Q: When should multiple pressure reducing valves be installed?

A: Multiple installations are recommended for wide demand variations or when the desired pressure reduction exceeds a 4:1 ratio (for example, reducing 200 psi inlet pressure to 50 psi outlet).

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