R - Return line elements

R elements are used in return line filters, e.g. in the series RF, RFD, RFM, RFL, RFLD, RFM, NF, NFD.


  • Filter ratings: 1 to 200 µm
  • Filter materials: glass fibre, solid plastic, wire mesh, paper, metal fleece, water-absorbent material
  • Absolute or nominal filtration, depending on the filter material
  • Permissible differential pressures: 20 bar
  • Operating temperature: up to 100°C
  • Compatible with all conventional operating media
  • With bypass valve (optionally without)