The Wilkins 1-70XL is a water pressure reducing valve designed for potable water systems, reducing high inlet pressure to controlled outlet pressure with a balanced piston design.

Key Specifications:

• Size: 1 Inches
• Maximum Working Water Pressure: 300 PSI
• Maximum Working Water Temperature: 140°F
• Notable Certifications: ASSE 1003, NSF/ANSI/CAN 61
• Threaded Connections: FNPT ANSI B1.20.1

Other Related Variants:

• 34-70XL: 3/4 Inches version

Materials:

• Cast bronze body and bell (ASTM B 584)
• Stainless Steel seat (300 series)
• Stainless Steel stem and sleeve (300 series)
• Buna nitrile elastomers (FDA CFR 21, 177.2600)
• EPDM elastomers (FDA CFR 21, 177.2600)
• Stainless Steel strainer screen (300 series)

Typical Installation:

Local codes shall govern installation requirements. Unless otherwise specified, the assembly shall be mounted in accordance with the manufacturer's instructions and the latest edition of the Uniform Plumbing Code. The assembly shall be installed with sufficient side clearance for testing and maintenance. The Model 70XL may be installed in any position. If installed in a pit, vault or indoors, specify the "SC" sealed cage option. Multiple installations are recommended for wide demand variations or where the desired pressure reduction is more than 4 to 1 (i.e.: 200 psi inlet reduced to 50 psi outlet).

Standards Compliance:

ASSE Listed 1003; IAPMO Listed; CSA Certified; City of Los Angeles Approved; NSF/ANSI/CAN 61 & 372

Features & Benefits:

• Balanced Piston Design: Enables smooth and responsive reaction to changes in system flow demand while providing protection from inlet pressure changes.
• Integral Bypass Check Valve: Direct acting design prevents buildup of excessive system pressure caused by thermal expansion.
• Unitized Replaceable Cartridge: Reduces time involved with cleaning and maintenance, all internal parts are corrosion resistant and included in replaceable cartridge.
• Lead-Free Certified: Ideal for use where Lead-Free valves are required, meeting NSF/ANSI/CAN 372 with less than 0.25% weighted average lead content.

FAQ

Q: What is the factory preset pressure and adjustment range for the Zurn 1-70XL?

A: The valve is factory preset to 50 PSI with an adjustable reduced pressure range from 25 PSI to 75 PSI using the adjusting bolt.

Q: Can the Wilkins 1-70XL be installed in any orientation?

A: Yes, the Model 70XL may be installed in any position. If installed in a pit, vault or indoors, specify the "SC" sealed cage option.

Q: When should multiple Zurn 1-70XL valves be installed?

A: Multiple installations are recommended for wide demand variations or 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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