The Wilkins 1-NR3XLDUPEXF1960 is a water pressure reducing valve with integral by-pass check valve and strainer, designed for potable water applications.

Key Specifications:

• Size: 1 Inches
• Maximum Working Water Pressure: 400 psi
• Maximum Working Water Temperature: 140°F
• Notable Certifications: ASSE 1003, IAPMO, NSF/ANSI/CAN 61
• Connection Type: Double Union FNPT with PEX Tailpiece

Other Related Variants:

• 34-NR3XLDUPEXF1960: 3/4 Inch 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:

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 Design: Built-in strainer allows frequent cleaning of sediment and debris, ideal for residential and commercial water systems.
• Thermal Expansion Protection: Direct acting integral by-pass design prevents buildup of excessive system pressure caused by thermal expansion.
• Balanced Piston Design: Provides smooth and responsive reaction to changes in system flow demand while protecting against inlet pressure changes.
• Corrosion Resistant Construction: Sealed cage washer and stainless steel adjustment bolt and nut improve corrosion resistance for all applications including below-ground pit installation.

FAQ

Q: What is the factory preset pressure for the Zurn 1-NR3XLDUPEXF1960?

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

Q: Can the Wilkins 1-NR3XLDUPEXF1960 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.

Q: What is the maximum pressure reduction ratio recommended for the Zurn 1-NR3XLDUPEXF1960?

A: Multiple installations are recommended where the desired pressure reduction is more than 4 to 1 (for example: 200 psi inlet reduced to 50 psi outlet).

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