The Wilkins 34-NR3XLC is a lead-free water pressure reducing valve with integral by-pass check valve and strainer, designed for potable water service lines.

Key Specifications:

• Size: 3/4 Inches
• Maximum Working Water Pressure: 400 psi
• Maximum Working Water Temperature: 140°F
• Notable Certifications: ASSE 1003; IAPMO; CSA
• Connection Type: Copper sweat union

Other Related Variants:

• 12-NR3XLC: 1/2 Inches model size
• 1-NR3XLC: 1 Inches model size

Materials:

• Main valve body: Low Lead Cast bronze ASTM B 584
• Bell housing: UV resistant polymer composite
• Internals: Stainless steel, 300 Series
• 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; Meets the requirements of NSF/ANSI/CAN 61

Features & Benefits:

• Pressure Regulation & Thermal Expansion Protection: Reduces high inlet pressure to lower outlet pressure while the integral by-pass design prevents buildup of excessive system pressure caused by thermal expansion.
• Lead-Free Compliance: Meets NSF/ANSI/CAN 61 lead-free requirements (0.25% max weighted average lead content) for safe potable water applications.
• Integrated Strainer System: Built-in strainer with 300 Series stainless steel screen filters debris, making it ideal for residential and commercial systems requiring frequent cleaning of sediment.
• Easy Maintenance Access: The Zurn 34-NR3XLC balance piston design and sealed cage construction allow servicing without removing the device from the line, reducing downtime and installation costs.

FAQ

Q: What is the factory preset outlet pressure for the Zurn 34-NR3XLC?

A: The valve comes factory preset to 50 psi outlet pressure, with an adjustable reduced pressure range of 15 to 75 psi for 3/4" models.

Q: Can the Model NR3XL be installed in any orientation?

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

Q: What type of connection does the 34-NR3XLC model feature?

A: The 34-NR3XLC features copper sweat (FC) union connections per ANSI B16.22, designed for soldered installation on copper plumbing lines.

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