Mueller A17941 Check Valve

The Mueller A17941 1 3/8 Magnetic Check Valve is a heavy-duty refrigeration check valve engineered for critical backflow prevention in high-capacity systems. Built with a hermetically formed solid copper body, this ODS magnetic check valve ensures a near-zero leak rate, making it a reliable choice for commercial HVACR applications. Utilizing proprietary DuraForm technology, the internal components are secured without brazing materials, allowing for installation with either hard or soft solder without risking internal damage. This 1 3/8-inch magnetic check valve features a built-in 30 mesh stainless steel screen to protect the seat from debris, maintaining a tight seal even in low-pressure differentials (<1 psig). Compatible with all common CFC, HCFC, and HFC refrigerants and oils, it supports a wide operating temperature range from -40°F to 300°F. For maximum field flexibility, the Mueller Streamline A17941 can be installed in any orientation, vertical or horizontal, without compromising flow efficiency or the 800 psi maximum working pressure rating.

• Enhanced System Protection: The magnetic closure provides positive sealing that outperforms traditional spring-loaded valves, effectively eliminating refrigerant backflow.
• Contamination Control: Integrated 30 mesh stainless steel screen filters out particulates, extending the life of downstream compressors and expansion valves.
• Durable Construction: Features a high-grade brass internal seat and stainless steel magnetic disk for long-term reliability in harsh environments.
• Versatile Installation: The solder x solder connection and mechanically formed cup stops simplify the brazing process for technicians on the job site.

• Is the Mueller A17941 compatible with R-410A systems? Yes, this valve is rated for a maximum abnormal pressure (MAP) of 800 psi, making it fully compatible with high-pressure R-410A and modern A2L refrigerants.
• Can this magnetic check valve be mounted vertically? Absolutely. The magnetic design ensures the disk reseats properly regardless of valve orientation, providing horizontal or vertical installation flexibility.
• What is the pressure drop across this valve? The A17941 is designed for high flow with a Cv value of 18.9, ensuring minimal pressure drop and maintaining system efficiency in 1 3/8" lines.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.