KDP Diaphragm Pumps

KDP Diaphragm Pumps

KDP is a top-rated manufacturer of diaphragm pumps. Their range of diaphragm pumps are so versatile that 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 affordable price range so that every sector can take advantage of their pump solutions. From water and wastewater, mining, oil and gas industry to food & beverage, chemical, pharmaceuticals, KDP has a diaphragm pump for all fluid handling applications.


Know more about
KDP Pumps

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 – motor, petrol, diesel
  • Mounting options
  • Spare parts
Key Specifications
  • Nominal flow rate up to 12.6 m3/h
  • Suction lift up to 7.5 metres
  • Discharge head 6 metres
  • Solid size up to 50 mm

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


Brochures & Manuals


Our range of available
KDP pumps

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


Principle of Operation

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 move 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.



All-Pumps offers bespoke solutions to your manufacturing processes. Whether you need a new pump, replacement part, repair services, system design, or monthly maintenance, call our professionals! 

Our customer support services set us apart, we take responsibility to give you the best experience possible. 

How our experts can help you: 

  • Design and cost a system or project 
  • Customise and engineer solutions for your specific application 
  • Provide spare parts and maintenance services
  • Conduct Site-Wide Pump Health Audits with our Nexus Program
  • Pump Manuals and Technical Guides 

And so much more! 

Get in touch

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