York S1-025-45302-000 Expansion Valve

The York S1-025-45302-000 Expansion Valve is a genuine OEM replacement TXV designed for 5-ton high-efficiency residential and light commercial split systems. This thermostatic expansion valve is engineered specifically for R410A refrigerant applications, providing precise metering to maintain optimal superheat at the evaporator coil outlet. Featuring a 3/8" x 5/8" ODF connection, the brass-body valve ensures a secure, leak-free braze fit into the liquid and suction lines.

For service technicians, this valve is critical for preventing liquid slugging and ensuring the compressor operates within its designed envelope. The 5 ton capacity rating makes it a direct match for a wide range of York, Luxaire, and Coleman air handlers and heat pumps. By dynamically adjusting refrigerant flow in response to heat load changes, this thermal expansion valve maximizes system SEER ratings and heat transfer efficiency. When replacing an older or restricted metering device, the York S1-025-45302-000 provides the reliable pressure drop and flow control necessary for modern high-pressure R-410A systems.

• OEM Precision: Genuine York S1-025-45302-000 replacement ensures exact factory specifications for 5-ton evaporator coils.
• Optimized Superheat: Maintains critical refrigerant balance to protect the compressor and improve cooling capacity.
• Durable Construction: High-grade brass body and copper capillary tube designed for high-pressure R410A refrigeration environments.
• Industry Standard Connections: Features 3/8" x 5/8" ODF (Open Die Forge) sweat connections for professional installation.

• Is this valve compatible with R-22 systems? No, this thermostatic expansion valve is calibrated specifically for the pressure-temperature characteristics of R410A refrigerant.
• What causes a TXV to fail in a 5-ton system? Common failure points include debris blockage at the inlet screen, loss of power element charge, or moisture in the system causing the internal pins to freeze.
• Does this include a sensing bulb and capillary tube? Yes, the York S1-025-45302-000 includes the integrated sensing bulb required to monitor suction line temperature for flow adjustment.

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.