This valve uses an electric operator instead of a diaphragm power assembly:

The electric expansion valve (EEV) is specifically designed to use an electric operator, distinguishing it from other types of valves that typically rely on mechanical or pressure-driven components. In EEVs, the electric operator controls the valve opening and closing based on signals from a temperature or pressure sensor, allowing for precise control of refrigerant flow in an HVAC system.

This electric operation provides advantages such as improved efficiency and responsiveness, enabling the system to adapt to varying load conditions quickly. The EEV can modulate the flow of refrigerant continuously, offering better temperature control and optimization compared to valves that use mechanical assemblies like diaphragms.

In contrast, other valves mentioned, such as the thermostatic expansion valve (TXV) and the automatic expansion valve (AXV), rely on pressure differences and mechanical movements rather than electric signals. A solenoid valve, while also operated electrically, is primarily used for on/off control rather than regulating refrigerant flow in a modulating manner, which is the primary function of the EEV in HVAC systems.