York S1-025-45300-000 Expansion Valve

Maintaining precise superheat levels is critical for the longevity of high-capacity residential and light commercial systems. The York S1-025-45300-000 Expansion Valve is a genuine OEM thermal expansion valve engineered to meter refrigerant flow with professional-grade accuracy. This 3/8 x 5/8 ODF TXV features an ODF (Obstruction-Free) sweat connection designed for a leak-free interface in R-410A refrigerant circuits. As a veteran-preferred S1-025-45300-000 replacement part, this component effectively prevents liquid slugging of the compressor by adjusting fluid delivery based on real-time evaporator heat load. This HVAC thermal expansion valve is a drop-in solution for York, Luxaire, and Coleman units requiring an exact refrigerant metering device to restore peak EER/SEER efficiency. Its balanced port construction ensures stable operation across varying ambient conditions, making it the standard choice for contractors troubleshooting restricted flow or erratic suction pressures.

• Precise Superheat Regulation: Prevents compressor flooding by maintaining a consistent 10-12 degree superheat.
• OEM Compatibility: Exact York S1-025-45300-000 specifications ensure no modifications are needed during field installation.
• Enhanced System Reliability: High-grade diaphragm and sensing bulb prevent the hunting issues common with generic aftermarket valves.
• Durable Brazed Connections: The 3/8" inlet and 5/8" outlet ODF connections provide a robust, pressure-tight seal.

What are the symptoms of a failing York S1-025-45300-000?
Technicians typically observe high superheat, low suction pressure, or frost accumulation on the evaporator coil. If the valve is stuck open, you may see liquid refrigerant returning to the compressor (slugging).

Does this TXV include the sensing bulb?
Yes, this is a complete thermal expansion valve assembly including the integral sensing bulb required for accurate temperature feedback at the evaporator outlet.

Is this valve compatible with R-22 systems?
No, this specific model is calibrated for R-410A pressure-temperature characteristics. Using it with the wrong refrigerant will cause improper metering and potential system damage.

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.