KDP Mechanical Diaphragm Pump

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.
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.
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Abaque Peristaltic Pump HD25 model

Features & Benefits

  • 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

Available Options

We customise pumps according to your specific application. Get in touch with us to know your options.

  • Carry frame option
  • Drive options – Electric motor, petrol, diesel
  • Mounting options
  • Spare parts

Key Specifications

  • 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)


  • 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


Abaque Peristaltic Hose Pump HD100 model

KDP 25

6.6 GPM | 0.37kW
Abaque Peristaltic Hose Pump HD 10 or HD20 model

KDP 32

8.7 GPM | 0.37kW
Abaque Peristaltic Pump HD25 model

KDP 38

13.2 GPM | 0.75 kW
Abaque Peristaltic Pump HD25 model

KDP 50

26.4 GPM | 1.1 kW
Abaque Peristaltic Pump HD25 model

KDP 76

55.5 GPM | 1.5 kW
MODELS KDP 25-100 KDP 25-150 KDP 32 KDP 38 KDP 50 KDP 76
Connections 25 mm (1″) 25 mm (1″) 32 mm (1.25″) 38 mm (1.5″) 50 mm (2″) 76 mm (3″)
Nominal Flow 16 LPM 25 LPM 33 LPM 50 LPM 100 LPM 210 LPM
Suction Lift 7.5 m 7.5 m 7.5 m 7.5 m 7.5 m 7.5 m
Discharge head 6.0 m 6.0 m 6.0 m 6.0 m 6.0 m 6.0 m
Solid Size 15 mm 15 mm 20 mm 25 mm 35 mm 50 mm
Motor Size 0.37 kW 0.37 kW 0.37 kW 0.75 kW 1.1 kW 1.5 kW
Weight 25 kg 25 kg 30 kg 42 kg 55 kg 72 kg


  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


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.

Servicing you anywhere in Australia

All-Pumps offers a bespoke solution to your pump problems. Call our professionals if you need a new pump, replacement part, repair services, system design, or monthly maintenance!
Our customer support services are the best in the field with 100% customer satisfaction ratings.
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