The Wilkins 1-20XL is a lead-free water pressure reducing valve with integral strainer designed for potable water lines, reducing high inlet pressure to lower outlet pressure while filtering debris and sediment.

Key Specifications:

• Size: 1 Inches
• Maximum Working Water Pressure: 300 psi
• Maximum Working Water Temperature: 140°F
• Notable Certifications: ASSE 1003, cUPC, CSA B356
• Connection Type: Single Union FNPT

Other Related Variants:

• 34-20XL: 3/4 Inches version

Materials:

• Main Valve Body: Lead-Free Cast Bronze
• Bell Housing: UV-resistant Polymer Composite
• Stem: Lead-Free Brass
• Elastomers: EPDM, Buna Nitrile
• Cartridge: Acetal
• Spring: 300 Series 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 Zurn 1-20XL 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.

Standards Compliance:

ASSE Listed 1003; cUPC Listed; CSA Certified B356; NSF/ANSI/CAN 61; NSF/ANSI/CAN 372

Features & Benefits:

• Integral Strainer Design: Built-in strainer filters sediment and debris, ideal for residential and water systems requiring frequent cleaning without additional components.
• Thermal Expansion Protection: Direct acting integral by-pass design prevents buildup of excessive system pressure caused by thermal expansion, enhancing system safety.
• Balanced Stem Technology: Provides smooth and responsive reaction to changes in system flow demand while protecting against inlet pressure fluctuations.
• Flexible Installation: Compact design with short lay length can be installed in any orientation, making it ideal for tight spaces and various applications.

FAQ

Q: Can the Wilkins 1-20XL be installed in any orientation?

A: Yes, the Model 20XL may be installed in any position, providing flexibility for various installation configurations and space constraints.

Q: What is the factory preset pressure and adjustable range?

A: The valve comes factory preset at 50 psi with an adjustable reduced pressure range of 25 to 75 psi. Always use a pressure gauge downstream when adjusting to verify correct pressure setting.

Q: How do I maintain the Zurn 1-20XL valve?

A: The assembly is accessible for maintenance without removing the device from the line. A repair kit (RK34-1-20XL) is available for all 3/4" and 1" 20XL models for servicing.

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