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Big piston dosing pump

Rekos pumps can be supplied as simplex piston dosing pumps type KR and duplex piston dosing pumps type ZKR.
Advantages of piston dosing pumps are: minor dependency on back pressure and linear flow variation as a function of the stroke length. The dosing pumps are therefore very suitable for proportional dosing where the stroke length is adjusted by means of a remote control signal.



  • Simplex or duplex piston dosing pumps
  • Minor dependency on back pressure
  • Linear flow variation as a function of the stroke length
  • Plastic dosing heads for max. 10 bar
  • Stainless steel dosing heads for up to 200 bar
  • Double-ball, spring-loaded single-ball valves or disk valves, depending on the size
  • Dosing head with a flushing attachment
  • Piston packings in PTFE or Aramid-kevlar
  • Piston-diaphragm dosing heads available
  • Dosing head heating
  • Stroke counter with inductive detector for charge-processes (optional)
  • Stroke adjustment either manually or electrically (ATE)

Further product views

REKOS KR 820304075125180295420725
Max. pressure (plastic)bar 105
Max. pressure (stainl. st.)bar 2001901309550302012105
Output at max. pressurel/h 920314075125180295420725
Piston Ømm 8121517233036465572
Stroke frequencymin-1 100
Suction liftmbar 120
Motor powerkW 0.55
Weight dosing head (plastic)kg 234
Weight dosing head (stainl. st.)kg 71015
Weight simple gearkg 252627

Subject to technical changes


BW: Operation instruction
MB: Dimension sheet