The Wilkins 34-NR3XLDULUP is a lead-free water pressure reducing valve with integral by-pass check valve and strainer, designed for residential and commercial water systems.

Key Specifications:

• Size: 3/4 Inches
• Maximum Working Water Pressure: 400 psi
• Maximum Working Water Temperature: 140°F
• Notable Certifications: ASSE 1003, IAPMO, CSA, NSF/ANSI/CAN 61
• Connection Type: 2 Integral FNPT (No Union)

Other Related Variants:

• 12-NR3XLDULUP: 1/2 Inch 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.

Standards Compliance:

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

Features & Benefits:

• Lead-Free Compliance: Meets NSF/ANSI/CAN 61 with 0.25% max weighted average lead content, ideal where lead-free valves are required.
• Integral By-Pass Design: Direct acting integral by-pass prevents buildup of excessive system pressure caused by thermal expansion.
• Balance Piston Design: Enables smooth and responsive reaction to changes in system flow demand while providing protection from inlet pressure changes.
• Integral Strainer: Built-in strainer makes this device suitable for systems requiring frequent cleaning of sediment and debris.

FAQ

Q: Can the Wilkins 34-NR3XLDULUP be installed in any position?

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

Q: What is the factory preset pressure for the Zurn 34-NR3XLDULUP?

A: The valve is factory preset to 50 psi, with an adjustable reduced pressure range of 15 to 75 psi.

Q: When should I use a downstream pressure gauge?

A: A downstream pressure gauge must be used anytime the reducing valve is adjusted to verify correct pressure setting. Do not bottom the adjustment bolt on the bell housing.

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