YORK 025-41565-000 Expansion Valve 034g2608 034G2602 034G2601 034G2603

025-41565-000 is the part number of York (a brand under Johnson Controls). The standard description is Electronic Expansion Valve (Electronic Expansion Valve / EXV), which belongs to the category of expansion valves. Most channels label its actual model as Danfoss ETS250, with an interface form of 1-5/8" ODF (copper pipe welding connection), weighing approximately 2.1 kg, and having an approximate size of 262 × 259 × 323 mm.
The electronic expansion valve is the core component for throttling control in water chillers: it receives the electrical signal sent by the chiller controller based on the outlet superheat (or liquid level) of the evaporator, and is driven by a stepper motor to continuously adjust the opening degree, precisely controlling the refrigerant flow entering the evaporator. Compared to traditional thermal expansion valves, it has a wider adjustment range and faster response, and can significantly improve energy efficiency and operational stability under partial load and variable conditions. Therefore, it is widely used in York YK, YT centrifugal units, YS screw units, and other water-cooled chillers.