3/4" Bronze Lift Check Valve, Lead-Free, Vertical, Iron Pipe x Iron Pipe

NIBCO® Ring Check® 3/4" Lift Check Valve – Spring-Loaded, Lead-Free Bronze Backflow Prevention

The NIBCO® Ring Check® Lift Check Valve is a spring-actuated solution engineered for efficient backflow prevention in water systems. Constructed from lead-free, dezincification-resistant (DZR) bronze, this 3/4" lift check valve meets low-lead compliance standards and delivers dependable performance under high-pressure and high-temperature conditions. It is suitable for use in commercial, industrial, and residential potable water systems.

Featuring a self-closing disc and threaded end connections, this valve offers a compact and effective way to prevent reverse flow, protect system components, and maintain water quality. The valve is suitable for installation in both horizontal and vertical positions (with upward flow only).

Key Features

• Spring-Loaded Disc – Automatically closes to block reverse flow when downstream pressure drops.
• Lead-Free DZR Bronze Body – Compliant with NSF/ANSI 61 and NSF/ANSI 372 standards for potable water use.
• Threaded Ends (NPT) – Facilitates secure connections and quick in-line installation.
• Versatile Installation – Designed for vertical or horizontal systems with upward flow requirements.
• Compact Design – Ideal for systems requiring minimal footprint while ensuring reliable backflow protection.

Technical Specifications

• Nominal Size: 3/4 inch
• Material: Lead-free DZR bronze
• Pressure Rating: 250 psi (non-shock, cold water)
• Temperature Rating: Up to 300°F
• Pressure Class: Class 125
• End Connection: Female NPT
• Certifications: NSF/ANSI 61 & 372, Lead-Free
• Warranty: 5-Year Limited

Installation Notes

Ensure proper alignment with the flow direction indicated on the valve body. This valve is designed for inline service with clean fluids; debris or sediment may affect sealing performance. For code-compliant installation, use with approved fittings and apply thread sealant rated for potable water systems. While straightforward to install, use of a licensed plumbing professional is recommended for compliance with local regulations and optimal system performance.

Application Areas

The NIBCO® Ring Check® Lift Check Valve is commonly used in domestic water systems, heating system backflow protection, pump discharge lines, and other closed-loop or pressurized installations. Its low cracking pressure and spring-assisted closure make it particularly useful in applications with variable or intermittent flow conditions.

Summary of Benefits

• Helps maintain directional flow integrity in potable water and closed-loop systems
• Corrosion-resistant materials suitable for long-term service
• Lead-free compliance ensures compatibility with modern plumbing codes
• Trusted manufacturer with a strong track record of performance in commercial plumbing

Built for Performance, Backed by Standards

With its proven design and material quality, the NIBCO® Ring Check® Lift Check Valve offers a durable, low-maintenance option for contractors seeking reliable backflow prevention in potable water systems. Its performance rating and lead-free certification make it a preferred choice on code-regulated job sites.