The Wilkins 12-NR3XL 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 regulation.

Key Specifications:

• Size: 1/2 Inches
• Maximum Working Water Pressure: 400 psi
• Maximum Working Water Temperature: 140°F
• Notable Certifications: ASSE 1003, IAPMO, CSA
• Threaded Connections: FNPT ANSI B1.20.1
  

Other Related Variants:

• 34-NR3XL: 3/4 Inches model size
• 1-NR3XL: 1 Inches model size
• 114-NR3XL: 1 1/4 Inches model size
• 112-NR3XL: 1 1/2 Inches model size
• 2-NR3XL: 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)
• 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).

Standards Compliance:

ASSE Listed 1003; IAPMO Listed; CSA Certified; NSF/ANSI/CAN 61 (0.25% Maximum Weighted Average Lead Content)

Features & Benefits:

• Integral By-Pass and Strainer: The Zurn 12-NR3XL prevents thermal expansion pressure buildup while the integral strainer removes sediment and debris, ideal for residential and commercial water systems.
• Lead-Free Compliance: Meets NSF/ANSI/CAN 61 standards with 0.25% maximum weighted average lead content for safe potable water applications.
• Balance Piston Design: Provides smooth, responsive reaction to flow demand changes while offering protection from inlet pressure fluctuations.
• Corrosion Resistant Construction: Sealed cage washer and stainless steel adjustment components enable reliable below-ground pit installation and long service life.

FAQ

Q: Can the Wilkins 12-NR3XL be installed in any orientation?

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

Q: What is the factory preset pressure setting for the Zurn 12-NR3XL?

A: The valve comes factory preset at 50 psi. It can be adjusted to deliver reduced pressures ranging from 15 to 75 psi using a downstream pressure gauge.

Q: When should multiple reducing valves be installed?

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

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