The Wilkins 34-35XL is an atmospheric vacuum breaker designed to protect potable water lines against backsiphonage contamination where potential health hazards exist.

Key Specifications:

• Size: 3/4 Inches
• Maximum Working Water Pressure: 125 PSI
• Maximum Working Water Temperature: 180°F
• Notable Certifications: ASSE 1001, IAPMO, CSA
• Installation Height Requirement: 6 Inches minimum above outlet

Other Related Variants:

• 12-35XLCH: 1/2 Inch model
• 1-35XL: 1 Inch model
• 14-35XLVCH: 1/4 Inch model

Materials:

• Cast Bronze ASTM B584
• Silicone (FDA approved)
• Buna Nitrile (FDA approved)
• Polypropylene

Typical Installation:

Local codes shall govern installation requirements. To be installed in accordance with the manufacturer's instructions and the latest edition of the Uniform Plumbing Code. The assembly shall be mounted at a minimum of 6 inches above the highest point of discharge with sufficient side clearance for maintenance. Because the Zurn 34-35XL is not to be used under continuous pressure never place a shut-off or check valve downstream of the device. The installation shall be made so that no part of the unit can be submerged.

Standards Compliance:

ASSE Listed 1001; CSA Certified; IAPMO Listed; Certified to NSF/ANSI 372 by IAPMO R&T

Features & Benefits:

• Lead-Free Compliance: Certified to NSF/ANSI 372 with 0.25% maximum weighted average lead content for safe potable water use.
• Backflow Protection: Protects against backsiphonage of contaminated water into potable water supply where potential health hazards exist.
• Easy Maintenance: Accessible for maintenance without removing the device from the service line.
• Durable Construction: Cast bronze body with FDA-approved silicone and buna nitrile elastomers for long-lasting performance.

FAQ

Q: What is the minimum installation height required for the Zurn 34-35XL?

A: The assembly must be mounted at a minimum of 6 inches above the highest point of discharge with sufficient side clearance for maintenance.

Q: Can I install a shut-off valve downstream of this atmospheric vacuum breaker?

A: No, because the Model 35XL is not to be used under continuous pressure, never place a shut-off or check valve downstream of the device.

Q: What are the maximum operating conditions for this vacuum breaker?

A: The maximum working water pressure is 125 PSI and the maximum working water temperature is 180°F.

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