The Wilkins 12-NR3XLDU is a lead-free water pressure reducing valve with integral by-pass check valve and strainer, designed for residential and commercial potable water systems.

Key Specifications:

• Size: 1/2 Inches
• Maximum Working Water Pressure: 400 psi
• Maximum Working Water Temperature: 140°F
• Notable Certifications: ASSE 1003, IAPMO, CSA
• Connection Type: Double Union FNPT

Other Related Variants:

• 34-NR3XLDU: 3/4 Inches model size
• 1-NR3XLDU: 1 Inch model size
• 114-NR3XLDU: 1 1/4 Inches model size
• 112-NR3XLDU: 1 1/2 Inches model size
• 2-NR3XLDU: 2 Inches model size

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 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 By-Pass & Strainer Design: Prevents excessive system pressure buildup caused by thermal expansion while capturing sediment and debris for frequent cleaning in residential and commercial water systems.
• Balance Piston Technology: Provides smooth, responsive performance to changes in system flow demand with protection from inlet pressure changes for consistent outlet pressure control.
• Lead-Free Construction: Complies with NSF/ANSI/CAN 61 with 0.25% maximum weighted average lead content, ideal for safe potable water applications.
• Flexible Installation & Maintenance: Can be installed in any position including below-ground pit applications; accessible for maintenance without removing from line with sealed cage washer and stainless steel components for corrosion resistance.

FAQ

Q: Can the Zurn 12-NR3XLDU be installed in any orientation?

A: Yes, the Zurn 12-NR3XLDU may be installed in any position. Ensure sufficient side clearance is provided for testing and maintenance access.

Q: What is the recommended pressure reduction ratio for the Wilkins 12-NR3XLDU?

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

Q: How do I adjust the outlet pressure on this valve?

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. The valve is factory preset to 50 psi.

"Hydrate Everyone, Everywhere!" BottleFillingStations.com | Contact us