Description
The York S1-025-31989-000 is an Aeroquip thermostatic expansion valve (TXV) engineered for R-22 refrigerant systems with a 3-ton capacity rating and a 30-inch capillary tube. Designed as a genuine York OEM replacement component, this TXV delivers precise refrigerant metering to maintain optimal evaporator performance, protect the compressor from liquid slugging, and ensure consistent system efficiency across a wide range of operating conditions.
Key Features
- OEM York replacement TXV — SKU S1-025-31989-000
- Aeroquip construction for durable, leak-resistant performance
- Rated for R-22 refrigerant systems
- 3-ton (36,000 BTU/hr) capacity rating
- 30-inch capillary tube for flexible bulb placement and installation
- Thermostatic expansion valve design for precise superheat control
- Protects compressor by preventing liquid refrigerant slugging
- Maintains consistent evaporator efficiency under varying load conditions
Application
This TXV is intended for use in residential and light commercial split-system air conditioning and heat pump equipment that utilizes R-22 refrigerant. The 30-inch capillary tube provides installation flexibility, allowing the sensing bulb to be properly positioned on the suction line for accurate superheat sensing. Always verify compatibility with your specific York equipment model before installation.
Why Choose a Genuine York OEM TXV?
Using a genuine York OEM expansion valve ensures the valve’s flow characteristics, port sizing, and superheat settings are matched precisely to your system’s design specifications. This helps maintain rated system efficiency, preserves equipment warranties, and reduces the risk of callbacks due to improper refrigerant metering.







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