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The Wilkins 12-375ST is a stainless steel reduced pressure principle backflow preventer designed to protect potable water systems from contamination in corrosive environments.

Key Specifications:

• Size: 1/2 Inches
• Maximum Working Pressure: 175 PSI
• Maximum Working Temperature: 180°F
• Notable Certifications: ASSE 1013, CSA B64.4, NSF/ANSI/CAN 61
• End Connections: Threaded FNPT

Other Related Variants:

• 1-375ST: 1 Inch model size
• 34-375ST: 3/4 Inch version

Materials:

• Housing: Reinforced Nylon (FDA approved)
• Ball Valves: Cast Stainless Steel ASTM A351, CF-8M
• Fasteners: Stainless Steel, 300 Series
• Springs: Stainless Steel, 300 Series
• Struts: Stainless Steel, 300 Series
• Internals: Delrin, Nylon
• Elastomers: Silicone (FDA Approved), Buna Nitrile (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 12-375ST 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, and breweries. To be installed in accordance with manufacturers' instructions and the latest edition of the Uniform Plumbing Code. 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 Resistance: Stainless steel construction is ideal for systems with liquids corrosive to copper alloys, ensuring long-term durability.
• Health Hazard Protection: Provides reduced pressure principle backflow prevention where a potential health hazard exists, protecting potable water supplies.
• Lead-Free Compliance: The Wilkins 12-375ST meets 0.25% maximum weighted average lead content requirements, making it ideal for applications requiring lead-free valves.
• Easy Maintenance: Full port ball valves are included as standard, allowing for convenient testing and servicing of the Zurn 12-375ST assembly.

FAQ

Q: What is the maximum working pressure and temperature for the 12-375ST?

A: The maximum working water pressure is 175 PSI and the maximum working water temperature is 180°F.

Q: What installation height is required for the 12-375ST?

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.

Q: What applications is the stainless steel 12-375ST best suited for?

A: The stainless steel construction makes it ideal for corrosive fluid applications including medical diagnostic equipment, food processing, distilleries, and breweries where copper alloys would degrade.

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