Danfoss ETS Colibri electric expansion valve (ETS 12C to 100C)

The Danfoss ETS Colibri® is a stepper motor electric expansion valve for precise injection into air conditioning and refrigeration evaporators: chillers, heat pumps, rooftops, VRF systems, cold rooms, food retail and transport refrigeration. Its in-line design, with a balanced cage and slider driven directly by the motor, gives precise control and solenoid-tight closing in both directions. The stainless steel body is fully laser welded: the valve is hermetic, with no external leakage. Five models, from ETS 12C to ETS 100C, cover 91 to 635 kW with R410A.

ETS Colibri models

Danfoss rated capacities: evaporating +5 °C, liquid 28 °C, condensing 32 °C, full stroke in normal flow (±10% in reverse flow). On ETS 12C and 24C, capacity increases with the connection size. Each code also comes in a box of 12.

Key benefits

• Precise, linear control from 10 to 100% opening, repeatable in all conditions: better use of the evaporator and higher system efficiency.
• Fast: full opening or closing in 2.5 s, which limits liquid return to the compressor at shutdown and low pressure cut-outs at start-up.
• Solenoid-tight in both directions: no refrigerant migration at standstill, and one component less on the liquid line.
• High pressures: MOPD 40 bar, maximum working pressure 50 bar.
• Hermetic and durable: laser welded stainless steel, compliant with EU F-gas Regulation 517/2014; bi-metal stainless steel and copper connections, no wet cloth needed for brazing.
• Sight glass with moisture indicator on ETS 25C, 50C and 100C: it shows the slider position, the flow direction and flash gas.
• Refrigerants: more than 50 refrigerants, including R290, R32, R404A, R407C, R410A, R134a, R448A, R449A, R452A, R454B, R513A, R1234yf and R1234ze. Approved for oil-free applications.

Common specifications

• Ambient temperature −40 to 70 °C; refrigerant −40 to 70 °C continuously (up to 95 °C, and 120 °C on the liquid line, at a 20% duty cycle).
• Bipolar permanent magnet motor, IP67, 800 mA peak (600 mA RMS) per phase, 7.44 W; 600 full steps, 240 steps/s recommended; 10 mm stroke.
• M12 connector; angle M12 cables of 2 m (034G7073), 5 m (034G7120), 8 m (034G7074), 12.2 m (034G7119) or 15 m (034G7129), or straight 12.2 m (034G7078).
• POE, PVE, mineral and ester oils, or oil-free.

Compatible controllers: Danfoss EKE 1A, 1B and 1C (see our EKE 1 superheat controller), MCX061V and MCX152V. For very large capacities, see also the ETS 400.

Afric Froid, your Danfoss supplier

Afric Froid supplies Danfoss ETS Colibri electric expansion valves, their cables and controllers, installs them and provides after-sales service in Tunisia, Algeria, Senegal and Ivory Coast. Tell us the refrigerant, capacity and temperatures: we will choose the right model and send you a quote.