York Expansion Valve ETS50C 034G7702

Function and Application Features

1. High Precision Flow Control* Utilizing stepper motors to drive the valve needle for continuous adjustment at micrometer levels. The control accuracy for the evaporator superheat is significantly higher than that of traditional thermal expansion valves, enabling rapid response to load fluctuations and maintaining the system in the optimal operating state, thereby enhancing overall energy efficiency and refrigeration output stability.
2. Factory-Specific Compatibility: Mapped directly to the original York unit control system, with fully corresponding signal protocols and installation dimensions. It can be directly replaced for faulty components without the need for additional pipeline modifications or adjustment of control parameters. Installation is convenient.
3. System Protection Features: Can achieve tight shut-off during shutdown, serving as a stop valve as well. It effectively maintains system pressure balance, preventing high-pressure refrigerant from flowing back and impacting the compressor rotor, reducing the risk of startup failures. It can also be combined with the unit's logic to implement control functions such as anti-liquid strike and superheat protection.
4. Strong Working Condition Stability: The valve body is made of special materials resistant to refrigerant and refrigeration oil. It is resistant to vibration and performs stably across a wide temperature range, suitable for long-term continuous operation in refrigeration rooms. It is commonly used as a core valve for maintenance of small-sized water chillers and upgrading of old systems.