The York S1-VLV-015-410 is an ALCO-manufactured thermostatic expansion valve (TXV) designed for reliable refrigerant flow metering in York HVAC systems. Featuring 3/8-inch inlet and 1/2-inch outlet ODF (Outside Diameter Flare/Solder) connections, this valve delivers precise superheat control to optimize system efficiency and protect the compressor from liquid slugging.
Key Features
- OEM York replacement TXV for accurate system compatibility
- ALCO-manufactured valve body for proven refrigeration-grade quality
- 3/8 in. x 1/2 in. ODF connection sizing for straightforward field installation
- Thermostatic expansion valve design maintains consistent superheat across varying load conditions
- Meters refrigerant flow to maximize system efficiency and protect compressor integrity
- Built for use in residential and light commercial York cooling applications
Product Specifications
- Part Number: S1-VLV-015-410
- Brand: York
- Valve Type: Thermostatic Expansion Valve (TXV)
- Inlet Connection: 3/8 in. ODF
- Outlet Connection: 1/2 in. ODF
- Valve Manufacturer: ALCO
Application
This TXV is engineered as a direct OEM replacement for York systems requiring the S1-VLV-015-410. It is ideal for HVAC technicians performing service or system upgrades where precise refrigerant metering is critical. Always verify system refrigerant type and capacity requirements prior to installation.








