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The Wilkins 34-375ST is a stainless steel reduced pressure principle backflow preventer designed to protect potable water systems from contamination where health hazards exist.

Key Specifications:

• Size: 3/4 Inches
• Maximum Working Water Pressure: 175 PSI
• Maximum Working Water Temperature: 180°F
• Notable Certifications: ASSE 1013, CSA B64.4, NSF/ANSI/CAN 61
• End Connections: Threaded FNPT

Other Related Variants:

• 12-375ST: 1/2 Inch version
• 1-375ST: 1 Inch model size

Materials:

• Reinforced Nylon Housing (FDA approved)
• Stainless Steel Ball Valves (ASTM A351 CF-8M)
• Stainless Steel Fasteners (300 Series)
• Stainless Steel Springs (300 Series)
• Stainless Steel Struts (300 Series)
• Delrin Internals
• Nylon Internals
• Silicone Elastomers (FDA Approved)
• Buna Nitrile Elastomers (FDA Approved)

Typical Installation:

Designed for installation on potable water lines to protect against both backsiphonage and backpressure of contaminated water into the potable water supply. The Zurn 34-375ST provides protection where a potential health hazard exists. The valve's stainless steel construction is ideal in systems that utilize liquids corrosive to copper alloys. Potential applications include medical diagnostic equipment, food processing, distilleries, breweries, and applications requiring lead-free valves. To be installed in accordance with the manufacturers' instructions and the latest edition of the Uniform Plumbing Code. Unless otherwise specified, the assembly shall be mounted at a minimum of 12 inches and a maximum of 30 inches above adequate drains with sufficient side clearance for testing and maintenance. The installation shall be made so that no part of the unit can be submerged.

Standards Compliance:

ASSE Listed 1013; CSA B64.4; Approved by the Foundation for Cross Connection Control and Hydraulic Research at the University of Southern California; NSF/ANSI/CAN 61

Features & Benefits:

• Corrosion-Resistant Construction: Stainless steel construction ideal for systems with liquids corrosive to copper alloys, ensuring long-lasting durability.
• Health Hazard Protection: Provides reliable protection against both backsiphonage and backpressure where potential health hazards exist.
• Lead-Free Compliance: Meets 0.25% maximum weighted average lead content requirements, ideal for applications requiring lead-free valves.
• Versatile Applications: Perfect for medical diagnostic equipment, food processing, distilleries, breweries, and other demanding environments.

FAQ

Q: What is the maximum working pressure and temperature for the Wilkins 34-375ST?

A: The Zurn 34-375ST has a maximum working water pressure of 175 PSI and a maximum working water temperature of 180°F.

Q: What certifications does this backflow preventer meet?

A: This unit is ASSE Listed 1013, CSA B64.4 compliant, approved by the Foundation for Cross Connection Control and Hydraulic Research at USC, and meets NSF/ANSI/CAN 61 requirements.

Q: What are the installation height requirements?

A: The assembly shall be mounted at a minimum of 12 inches and a maximum of 30 inches above adequate drains with sufficient side clearance for testing and maintenance.

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