Description
The York S1-025-46391-000 Thermal Expansion Valve is a 3/8 inch by 3/8 inch ODF component used to regulate refrigerant flow into the evaporator, supporting efficient cooling control in HVAC systems. It meters refrigerant based on temperature and pressure conditions to maintain proper superheat and system balance. It operates through a sensing bulb and internal diaphragm that adjust valve position according to load demand. Positioned at the evaporator inlet within refrigerant lines, it interfaces with connected components to control refrigerant distribution and maintain stable cooling operation.









