Mueller Industries A17943 Check Valve

The Mueller Industries A17943 is a high-performance 2-1/8 Magnetic Check Valve designed for demanding commercial refrigeration and HVAC systems. Engineering for critical liquid line and discharge line applications, this normally closed check valve utilizes a permanent magnet to ensure positive closure, eliminating the common mechanical failures associated with traditional spring-loaded designs. Its hermetically sealed construction and extended copper ends allow for direct ODS solder installation without disassembly, protecting internal components from heat damage during the brazing process. Compatible with HFC and HCFC refrigerants, including R-410A and R-134a, the A17943 features a low pressure drop profile to maintain system efficiency. This magna-check valve can be mounted in any orientation, providing technicians with maximum installation flexibility in tight mechanical rooms while preventing hazardous refrigerant backflow and migration during compressor off-cycles.

• Magnetic Sealing Technology: Replaces springs with a permanent magnet for reliable, friction-free operation and reduced maintenance.
• Superior Compatibility: Rated for high-pressure systems and common lubricating oils, including POE and mineral oil.
• High Design Pressure: Built to withstand the rigors of modern high-pressure refrigerant cycles without compromising seal integrity.
• Installation Versatility: The gravity-independent design allows for vertical or horizontal piping configurations.
• Durable Construction: Features a rugged brass body and precision-machined internals for long-term field reliability.

Can this check valve be installed in any position?
Yes, unlike traditional gravity-dependent valves, the Mueller A17943 uses a magnetic force to seat the plunger, making it suitable for horizontal, vertical, or angled piping runs.

Is disassembly required during brazing?
No, the extended copper fittings are designed to dissipate heat, allowing for braze-in-place installation. However, standard heat-sinking practices like using a wet rag are always recommended.

What refrigerants is this magnetic check valve compatible with?
This 2-1/8 ODS check valve is fully compatible with most ASHRAE 34 listed HFC and HCFC refrigerants, making it a versatile choice for a wide range of cooling applications.

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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.