Solenoid Valve series HDF

Solenoid Valve series HDF

HDF series solenoid valves are piston type pilot operated solenoid valves, mainly used in refrigerant control of various devices such as refrigerating and freezing systems, air conditioners and heat pumps. The maximum admitted refrigerant temperature (equal to +140°C) permits to install HDF valves in gas injection or hot gas bypass lines such as in the compressor discharge line.

Technical parameters

  • Dimensions
  • Dimensions of the coils


  • Technical parameters of coil

    Standard coils with DIN connector (MQ-A03)

    Model Coil1) Part Number2) Rated Voltage [ V ] Supply Power [W] Frequency [Hz] Voltage Tolerance Insulation Class Protection Class (w/plug) Wiring type
    MQ-A03 024-001001 10820006102 24 AC 8,5 (50Hz) 50/60 -15% to +10% F IP65 DIN Plug
    7,5 (60Hz)
    MQ-A03 11A-001001 10820006302 110 to 120 8,5 (50Hz)
    7,5 (60Hz)
    MQ-A03 22G-001001 10820005702 220 to 240 8,5 (50Hz)
    7,5 (60Hz)


    Extent of delivery: coil body, fastening screw for the coil body, DIN plug for electrical connection incl. gaskets

  • Technical parameters of valve body
    Valve body (solder connections) Normal position Actuation Kv [m³/h] MOP [Mpa] Max. OPD [Mpa] Min. OPD [MPa]
    AC coil DC coil
    HDF 3 NC Pilot (piston operated) 0,3 4,5 3,8 2,8 0,007
    HDF 6 0,8 4,5 3,8 2,8 0,007
    HDF 10 1,9 4,5 3,8 2,8 0,007
    HDF 15 2,6 4,5 3,8 2,8 0,007
    HDF 20 4,0 4,5 3,8 2,8 0,007
    HDF 22 5,7 4,5 3,8 2,8 0,007
  • General Specifications
    • Applicable for all common HCFC, HFC refrigerants such as: R22, R134a, R404A, R407C, R410A, R507, R407A/F, R448A/R449A, R452A, R450A/R513A1)
    • Medium temperature TS min./max.: -40°C/+140°C
    • Ambient temperature min./max.: -30°C /+55°C
    • Relative humidity: 0 to 95% RH
    • Installation position:
      • liquid, suction and discharge line
      • Preferably coil upwards and flow direction corresponds to the arrow
    • Certifications: Declaration according to LVD and PED (2014/68/EU)


    1)Flammable refrigerants like R32, R290, R1234ze(E), R1234yf on request

  • Features
    • Valve body with a compact design, easy to manage and install
    • Valve body with hermetic design to eliminate the risk of external leakage
    • Solenoid valves piloted by Piston Actuation. Wide medium temperature range allowed
    • Great valve opening performance, high Max. OPD
    • Coils: low energy consumption, reliable
    • Coils are double sealed, water tight and safe
    • Coils can be selected with DIN connector
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