4-Way Reversing Valve DSF Series

The DSF series 4-way reversing valve is applicable to all kinds of heat pump systems. It changes the flow path of refrigerants by controlling the pilot valve to switch the mode between cooling and heating.

Technical Data

  • Applicable Refrigerants: R134a, R407C, R404A, R410A, and R32
  • Relative Humidity: ≤95% RH
  • Medium Temperature: -30°C~+135°C
  • Ambient Temperature: -30°C~+55°C
  • Max. Operating Pressure: 4.5 MPa


  • Reliably instantaneous changeover under minimum pressure differential
  • Wide range of capacity and connection styles
  • DSF(S) stainless steel material usage reduces heat loss and improves efficiency
  • Built-in chip energy-saving coil on request