Description
The York S1-VLV-003-410 is a genuine OEM thermostatic expansion valve (TXV) featuring ALCO construction with 3/8″ x 1/2″ ODF (Outside Diameter Flare) connections. Designed as a direct factory replacement for compatible York refrigeration and air conditioning systems, this TXV delivers reliable, precise refrigerant metering to maintain optimal evaporator performance and system efficiency.
Thermostatic expansion valves are a critical component in the refrigerant circuit, regulating the flow of liquid refrigerant into the evaporator coil in response to suction line superheat. A properly functioning TXV protects the compressor from liquid slugging while ensuring the evaporator coil is fully utilized for maximum heat transfer.
Key Features
- Genuine York OEM replacement TXV valve
- ALCO valve construction for proven reliability
- 3/8″ inlet x 1/2″ ODF outlet connections
- Precise superheat control for optimal system performance
- Direct drop-in replacement for compatible York systems
- Protects compressor from liquid refrigerant slugging
- Maximizes evaporator efficiency and system capacity
Product Specifications
- Brand: York (OEM)
- SKU: S1-VLV-003-410
- Valve Type: Thermostatic Expansion Valve (TXV)
- Inlet Connection: 3/8″ ODF
- Outlet Connection: 1/2″ ODF
- Valve Manufacturer: ALCO
Application
This TXV is intended for use in York residential and light commercial HVAC and refrigeration systems requiring a factory-specified ALCO expansion valve. Always verify compatibility with your specific York equipment model before installation. Proper TXV selection and installation is essential for system efficiency, refrigerant charge accuracy, and long-term compressor protection.









