Description
York S1-025-41133-000 Thermostatic Expansion Valve Overview
The York S1-025-41133-000 is a genuine OEM thermostatic expansion valve (TXV) designed to deliver precise refrigerant metering and optimal system efficiency in York HVAC equipment. Featuring 5/8″ and 7/8″ ODF (Outside Diameter Flare/Solder) connections, this valve is engineered for reliable, drop-in replacement in compatible York systems.
Key Features
- Genuine York OEM replacement thermostatic expansion valve
- 5/8″ inlet ODF connection for secure, leak-free installation
- 7/8″ outlet ODF connection for compatibility with standard line sets
- Precisely meters refrigerant flow to maintain optimal superheat
- Engineered for consistent performance and long service life
- Direct drop-in replacement for compatible York systems
What Is a TXV?
A thermostatic expansion valve (TXV) is a critical refrigeration component that regulates the flow of refrigerant into the evaporator coil. By maintaining the correct superheat level, the TXV maximizes system efficiency, protects the compressor from liquid slugging, and ensures consistent cooling performance across varying load conditions.
Application
- Designed as a direct OEM replacement for compatible York air conditioning and heat pump systems
- ODF connections suitable for soldered or flare-type line connections
- Ideal for HVAC technicians performing precision refrigerant circuit repairs or system restorations
Specifications
- Brand: York
- Part Number: S1-025-41133-000
- Valve Type: Thermostatic Expansion Valve (TXV)
- Inlet Connection: 5/8″ ODF
- Outlet Connection: 7/8″ ODF







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