York S1-022-22498-000 Check Valve

The York S1-022-22498-000 Check Valve is a critical directional control component designed for high-pressure refrigerant piping systems. Featuring a 3/8-inch ODF connection, this valve prevents backflow into the compressor or condenser, maintaining system pressure differentials during off-cycles. Since this is an OEM York replacement part, the internal spring tension and seat materials are specifically calibrated for Johnson Controls and York HVAC units, ensuring minimal pressure drop across the valve. Field technicians often utilize this 3/8" copper check valve in liquid line or discharge line applications where preventing migration is essential for compressor longevity. Its robust construction handles the thermal stressors of HVACR cycles, providing a reliable seal that standard generic valves often fail to maintain over time. Proper brazing technique with a heat sink is required to protect the internal seals during installation.

• System Integrity: Prevents reverse flow of liquid refrigerant, protecting the compressor from liquid slugging.
• OEM Precision: Direct 3/8" ODF fitment eliminates the need for field-modifying refrigerant lines on York or Guardian equipment.
• High-Pressure Capability: Engineered to withstand the discharge pressures associated with modern R-410A systems.
• Spring-Loaded Reliability: Ensures positive shut-off even in low-flow conditions where gravity-fed valves might fail.

Can this check valve be installed in any orientation?
While internal springs allow for various orientations, technicians should prioritize vertical or horizontal alignments that favor the internal mechanism's closing force according to system flow direction.

What is the primary cause of check valve failure in York units?
Overheating the valve body during brazing is the most common failure point. Always use a wet rag or heat-sink paste to protect the internal seat and spring assembly.

Is this compatible with multiple refrigerant types?
Yes, the materials used in the S1-022-22498-000 are compatible with standard HFC and HCFC refrigerants and their corresponding POE or mineral oils.

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.