The Wilkins 34-70XL is a lead-free water pressure reducing valve engineered for potable water systems, providing reliable pressure control and thermal expansion protection with a balanced piston design.

Key Specifications:

• Size: 3/4 Inches
• Maximum Working Water Pressure: 300 PSI
• Maximum Working Water Temperature: 140°F
• Notable Certifications: ASSE 1003 Listed; NSF/ANSI/CAN 61 & 372
• Threaded Connections: FNPT ANSI B1.20.1

Other Related Variants:

• 1-70XL: 1 Inch model size

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: Provides smooth and responsive pressure control during flow demand changes while protecting against inlet pressure fluctuations.
• Integral Bypass Protection: Direct-acting bypass design prevents excessive system pressure buildup caused by thermal expansion.
• Replaceable Cartridge System: Unitized cartridge design reduces cleaning and maintenance time with easy serviceability.
• Lead-Free Compliance: Meets NSF/ANSI/CAN 61 & 372 standards with less than 0.25% weighted average lead content for safe potable water applications.

FAQ

Q: What is the factory preset outlet pressure and what is the adjustable range for the Zurn 34-70XL?

A: The valve comes factory preset to 50 PSI and is adjustable from 25 PSI to 75 PSI to accommodate various application requirements.

Q: Can the Wilkins 34-70XL be installed in any orientation?

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

Q: When should multiple Zurn 34-70XL valves be installed in series?

A: Multiple installations are recommended for wide demand variations or where the desired pressure reduction is more than 4 to 1 ratio (for example: 200 PSI inlet reduced to 50 PSI outlet).

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