Step Valve DDF Series

ref. Step Valve DDF Series

DDF series step valves are mainly used in duel temperature/double control household refrigerators with variable temperature areas (with 0? preservation area or -7ºC temperature area) and similar refrigeration systems for controlling and switching the flow direction of refrigerant.

Home Appliances


  • Optimized design of refrigeration system, lower power consumption
  • Low operation noise: utilizing rotary actuation

General specifications

  • Applicable refrigerant: R600a and R134a
  • Applicable medium temperature: -20ºC ~ +65ºC
  • Applicable ambient temperature: -20ºC ~ +60ºC
  • Relative humidity: below 95%RH
  • Noise: Distance 15cm, starting noise ? 50dB (A), rotary noise ? 40dB (A)


Product structure and interface dimensions can be customized according to the customer’s requirements.