CAREL E7VATTB400 Electronic Expansion Valve – High-Capacity Chillers & Heat Pumps, Bi-Flow Design With Sight Glass, Equal-Percentage Precise Modulation

The Carel E7VATTB400 belongs to the E7V series of large-capacity electronic expansion valves, suitable for refrigeration units, air conditioners and heat pump systems with a maximum cooling capacity of approximately 2000 kW. The valve body features a bidirectional flow design with straight inlet and outlet arrangements, ensuring excellent pressure balance; it is equipped with a sight glass that allows direct observation of the valve core movement and the refrigerant flow state. The movable components are designed according to the equal percentage characteristic, maintaining precise regulation even under low load and small flow conditions. It is paired with stainless steel ball bearings and a gearless direct drive structure, ensuring smooth operation and rapid response. The modular structure enables the replacement of the external stator without disassembling the valve body, facilitating welding construction and later maintenance; when closed, it provides a tight seal, replacing the independent electromagnetic valve and effectively reducing system startup energy consumption. It is suitable for various refrigerants such as R134a, R410A, and R407C.