The Wilkins 1-20XLEPEX is a lead-free water pressure reducing valve with integral strainer, designed for residential potable water systems requiring pressure reduction with expansion PEX connections.

Key Specifications:

• Size: 1 Inches
• Maximum Working Water Pressure: 300 psi
• Maximum Working Water Temperature: 140°F
• Notable Certifications: ASSE 1003, cUPC, CSA B356
• End Connections: Integral male expansion PEX barbs

Other Related Variants:

• 34-20XLEPEX: 3/4 Inches version

Materials:

• Main Valve Body: Lead-Free cast bronze
• Bell Housing: UV-resistant polymer composite
• Stem: Lead-Free brass
• Elastomers: EPDM and 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 Model 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 (ie: 200 psi inlet reduced to 50 psi outlet). For pex tube installations, do not exceed the rated pressure or temperature of the tube. Consult with the tubing specification sheet for details.

Standards Compliance:

ASSE Listed 1003; cUPC Listed; CSA Certified B356; NSF/ANSI/CAN 61; NSF/ANSI/CAN 372 (lead-free)

Features & Benefits:

• Direct Connection to PEX Tubing: Integral male expansion PEX (ASTM F1960) barb connections eliminate the need for unions, minimizing fittings and potential leak points for simplified installation.
• Thermal Expansion Protection: Direct acting integral by-pass design prevents buildup of excessive system pressure caused by thermal expansion in closed systems.
• Lead-Free Construction: Complies with NSF/ANSI/CAN 372 with maximum 0.25% weighted average lead content for safe use on potable water lines.
• Integral Strainer for Easy Maintenance: Built-in 300 series stainless steel strainer screen captures sediment and debris, making the Zurn 1-20XLEPEX ideal for residential systems requiring frequent cleaning.

FAQ

Q: What type of PEX tubing is the Zurn 1-20XLEPEX compatible with?

A: The 1-20XLEPEX features integral male expansion PEX barb connections specifically designed for ASTM F1960 cross-linked polyethylene tubing.

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

A: Yes, the Model 20XL may be installed in any position according to the manufacturer's specifications.

Q: What is the factory preset outlet pressure on this valve?

A: The valve is factory preset to 50 psi, with an adjustable reduced pressure range of 25 to 75 psi. Always use a downstream pressure gauge when adjusting the setting.

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