York 022-03902-000 Check Valve

The York 022-03902-000 Check Valve is a precision-engineered 1/4" Flare Check Valve designed for high-performance HVACR refrigeration systems. This heavy-duty refrigerant backflow preventer features a robust brass body specifically rated for centrifugal liquid chillers and residential cooling units. By ensuring unidirectional flow, this component prevents compressor slugging and high-pressure liquid migration during the off-cycle, which is critical for maintaining system efficiency and protecting internal assemblies. The 1/4-inch flare connections provide a mechanical gas-tight seal that stands up to vibration and thermal cycling without the need for brazing. Whether utilized in liquid line applications or as part of a complex recovery setup, this genuine OEM York replacement part offers the reliability service contractors demand to minimize pressure drops and stabilize subcooling levels. This specific York valve is optimized for pressurized systems, ensuring immediate closure upon pressure relief to maintain an airtight seal throughout the refrigerant circuit.

• Engineered for Refrigerants: Designed for total compatibility with common HVACR gases and oils, preventing internal corrosion.
• Durable Brass Construction: High-tolerance metal alloy body withstands extreme internal pressures and elevated operating temperatures.
• Backflow Prevention: Eliminates liquid migration to the compressor, significantly reducing the risk of mechanical failure.
• 1/4" Flare Connections: Provides a secure, leak-proof interface that simplifies field replacement and speeds up service calls.
• Genuine OEM Precision: Exact 022-03902-000 specifications ensure a perfect fit in York centrifugal chillers and liquid-handling equipment.

What is the primary function of this 1/4" flare valve?
This valve acts as a one-way check to stop refrigerant from flowing back into the evaporator or compressor during idle periods, maintaining the pressure differential required for efficient startup.

Can this part be used in potable water systems?
No, this component is strictly restricted from use in lines conveying or dispensing water for human consumption; it is designed exclusively for HVACR fluid and gas control.

Is an O-ring required for installation?
While the flare fitting provides the primary mechanical seal, always inspect the mating surfaces for debris. Some installations may utilize specific sealants or swivels depending on the chiller's service manual requirements.

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.