Danfoss (www.danfoss.com) added the ETS 6 to the ETS Series of electrically operated expansion valves. Designed to control liquid injection into evaporators, the valve regulates refrigerant flow by offering a total of 480 steps from fully closed to fully open and ensures precise resolution for better control of superheat, even at low flow rates, said the company. With the ability to adapt to a system’s exact capacity demands, the ETS 6 improves energy efficiency in refrigeration, heat pumps, and air conditioning systems. The valve is compatible with all common refrigerants, including R-410A, R-407C, R-404A and R-134a. Compact and lightweight, the new valve can also be used in heat pump systems with biflow operation.