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The Wilkins 114-NR3XLDU is a lead-free water pressure reducing valve featuring an integral by-pass check valve and strainer for residential and commercial applications.

Key Specifications:

• Size: 1 1/4 Inches
• Maximum Working Pressure: 400 psi
• Maximum Working Temperature: 140°F
• Notable Certifications: ASSE 1003, IAPMO, CSA
• Connection Type: Double Union FNPT

Other Related Variants:

• 12-NR3XLDU: 1/2 Inch version
• 34-NR3XLDU: 3/4 Inch version
• 1-NR3XLDU: 1 Inch version
• 112-NR3XLDU: 1 1/2 Inches version
• 2-NR3XLDU: 2 Inches 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:

The Model 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 (ie: 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 Listed 1003; IAPMO Listed; CSA Certified; NSF/ANSI/CAN 61 (0.25% Max Weighted Average Lead Content)

Features & Benefits:

• Integral Strainer: Built-in strainer removes sediment and debris, ideal for residential and commercial water systems requiring frequent cleaning.
• Direct Acting By-Pass Design: Prevents buildup of excessive system pressure caused by thermal expansion for enhanced safety.
• Balance Piston Design: Enables smooth and responsive reaction to changes in system flow demand while providing protection from inlet pressure changes.
• Corrosion Resistant Construction: Sealed cage washer and stainless steel adjustment components suitable for all applications including below-ground pit installation.

FAQ

Q: Can the Zurn 114-NR3XLDU be installed in any position?

A: Yes, the Wilkins 114-NR3XLDU may be installed in any position. Ensure sufficient side clearance is provided for testing and maintenance.

Q: What pressure reduction ratio is recommended for the Zurn 114-NR3XLDU?

A: For optimal performance, pressure reductions should not exceed a 4:1 ratio. Multiple installations are recommended for greater reduction ratios.

Q: How do I properly adjust the outlet pressure?

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

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