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The Husky 3300 air-operated diaphragm pump has a 3-inch (76.2 mm) connection and is available in aluminum, polypropylene and stainless steel. It features a stall-free low pulsation air valve, providing a smooth and rapid changeover. The one-piece centre section eliminates leaks and reduces maintenance compared to other diaphragm pumps.



Design Advantages

  • Overmoulded diaphragm offers up to 5 times longer diaphragm life compared to other AODDs
  • Fewer parts with externally accessible air valve for easy servicing without uninstalling pump
  • Overall improved air efficiency by up to 40%
  • Offers the highest fluid rate in its class
  • Modular stall-resistant air valve design

Available Options

We customise pumps according to your specific application. Get in touch with us today to get a complete list of your options. 

  • Material options: diaphragm, fluid section, ball, seat
  • ATEX models available
  • Spare parts and accessories
  • Baseplates/mounting options

Key Specifications

  • Flow: 1135 lpm (metal) and 1059 lpm (plastic)
  • Max Discharge Pressure: 8.6 bar (metal) and 7 bar (plastic)
  • Viscosity: 20,000 cps
  • Solid size: 12.7 mm


  • Antifreeze
  • Detergent
  • Resin
  • Polymer
  • Motor Oil
  • Gear Oil
  • Hydraulic Fluid
  • Automatic Transmission Fluid
  • Cutting Oil
  • Water - Wastewater Treatment
  • Ink and Colorant


Graco air-operated double diaphragm (AODD) pumps use compressed air as a power source. The compressed air is shifted from one chamber and then to the other side by a linked shaft. This movement allows the chambers to move simultaneously. This back-and-forth motion forces liquid out of one chamber and into the discharge piping while simultaneously filling the other chamber with liquid. These pumps use reciprocating elastomeric diaphragms and check valves to pump fluid. The liquid chambers are filled and emptied by fluid that is drawn through a common inlet and discharged through a single outlet.

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!
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