KDP

KDP is a top-rated manufacturer of mechanical diaphragm pumps. Almost every industry in Australia relies on KDP’s technology for their fluid transfer needs. Following this demand, KDP remains dedicated to the continuous development of the most complete line of diaphragm pumps available in the market today. They offer the best product at an affordable price range so that every sector can take advantage of their pump solutions. KDP has a mechanical diaphragm pump for all fluid-handling applications.

A KDP mechanical diaphragm pump can be used in wastewater treatment, mining, oil and gas, food and beverage processing, chemicals, pharmaceuticals and many more.

Exploded diagram of KDP pump parts
  1. Aluminium Bowl
  2. Diaphragm plate
  3. Nitrile diaphragm
  4. Aluminium suction port
  5. Aluminium discharge port
  6. Stainless steel valve seat
  7. Nitrile valve seat gasket
  8. Nitrile flap valve (kit)
  9. Diaphragm plate bolt
  10. Suction port
  11. Connecting rod
  12. Drive support housing
  13. Worm gear speed reducer – (Ratio 30:1)
  14. Eccentric block
  15. Eccentric bearing housing
  16. Bearing – 6305
  17. Eccentric bolt & washer
  18. Circlip
  19. Gearbox pulley
  20. Motor pulley
  21. V-Belt
  22. Pulley guard backplate – SS 304
  23. Pulley guard – Plastic
  24. Electric motor
  25. Nitrile O-Ring
  26. Connecting rod nut
  27. Eccentric guard – Plastic
  28. Pulley guard backplate support bracket
  29. Baseplate – Mild steel – Galvanised
  30. Flanged hex nut
  31. Hex head bolt
  32. Grub screw
  • Improved Buna-N diaphragms
  • Higher suction lift
  • Sydney Water-approved for use with oil water separators
  • Safe to dry run without failures and damages
  • Operates on snore
  • Handles abrasive liquids efficiently
  • Carry frame option
  • Drive options – Electric motor, petrol, diesel
  • Mounting options
  • Spare parts
  • Nominal flow rate 16 LPM to 210 LPM (liters per minute)
  • Nominal flow rate up to 12.6 m3/h
  • Suction lift up to 7.5 metres
  • Discharge head 6 metres
  • Solid size 15mm to 50 mm (depending on KDP model)

Positive Displacement Pump

KDP Diaphragm Pumps fall under the positive displacement pump classification. They utilize two flexible diaphragms that reciprocate back and forth, creating a temporary chamber, which both draws in and expels fluid through the pump.

Each diaphragm is placed in a separate chamber. When one of the diaphragms moves up, the volume of the chamber with the diaphragm up increases. Pressure decreases in this chamber and fluid is drawn in. Next, the diaphragm moves down, causing decreased volume. The Fluid that was previously drawn in will now be forced out. The other chamber follows the same cycle but the second diaphragm moves up alternately with the first diaphragm. This now creates flow.

  • Dewatering excavation
  • Raw sewage
  • Pool maintenance and construction
  • Waste treatment plants
  • Oil skimming
  • Bore desludging
  • Oil Water separators
  • Machine sumps
  • Priming large centrifugal pumps
  • Industrial wastes
  • Liquid manure
  • Septic tank cleaning
  • Drum emptying
  • Abattoirs and poultry processing
  • Spillage mop up
  • KDP 25
    6.6 GPM | 0.37kW
  • KDP 32
    8.7 GPM | 0.37kW
  • KDP 38
    13.2 GPM | 0.75 kW
  • KDP 50
    26.4 GPM | 1.1 kW
  • KDP 76
    55.5 GPM | 1.5 kW
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