Verderair VA25 non-metallic

1" Inch (25mm) AOD pump for transferring of chemicals, acids and inks.

Flow rates up to 189 L/min and pressures up to 8.6 bar.

Features of Air Operated Diaphragm Pumps:

  • Self priming, dry running
  • Rugged construction
  • Polypropylene or Kynar constructions available
  • Various elastomer options
  • Anti-freeze/anti-stall and lube free
  • Externally serviceable air distribution systems

Enquire here for more information or to request a quote:


Maximum fluid flow 189 l/min
Maximum Fluid Discharge Pressure 8.6 bars
Maximum air pressure 8.6 bars
Suction- and discharge connections DN25 DIN PN10/16 – 1”Ainsi 150 Combi flange
Air inlet connection 1/2" NPT(f)
Maximum suction lift dry 4,9 m WC
wet 8,8 m WC
Maximum size pumpable solids 3,2 mm
Materials liquid parts Polypropylene, conductive Polypropylene, Kynar
Available materials valves Acetal, Polypropylene, Stainless Steel, Kynar, Aluminium, Buna-N, Viton, Geolast, Santoprene, Hytrel
Available materials balls Buna-N, Acetal, Santoprene, Stainless Steel, Hytrel, Viton, Geolast, PTFE, Neoprene, Neoprene with core
Available materials diaphragms Buna-N, Neoprene overmold, Viton, Geolast, PTFE/EPDM overmold, PTFE/EPDM 2 pieces, Hytrel, Santoprene
Material center section Polypropylene, Conductive Polypropylene
Atex ( Ex II2 GD c IIC T4) Only Conductive PP models


  • Machine lubrication servicing
  • Drum evacuation
  • Plating and dip tanks
  • Water treatment
  • Ink applications
  • Cleaning fluids and detergents



 How an Air Operated Diaphragm Pump Works:


How to Read an Air Operated Pump Curve:


Do you keep these diaphragm pumps in stock?

Yes. Global Pumps stocks a complete range of these air operated diaphragm pumps in stock and ready for immediate shipping.

How to read an Air Operated Diaphragm Pump curve?

We often had this question asked, so we created a video to explain how to read and determine the values. You can watch the video here: How to read an Air Operated Diaphragm Pump curve.

Where do you deliver and what is your estimated shipping times?

At Global Pumps, we understand how important it is for you to receive your order as quickly as possible. That's why we strive to provide speedy delivery to your door, no matter where you are located across Australia.

Below is a guideline of how long it takes to ship our products to some of Australia's major cities. Of course, we can also deliver elsewhere around the nation, so if your location isn't mentioned don't worry, just talk to the team at Global Pumps!

Locations: Shipping Time Range:
Melbourne 1-2 Days
Sydney 2-3 Days
Brisbane 2-4 Days
Perth 2-4 Days
Adelaide 1 Day
Kalgoorlie 3-5 Days
Mt Isa 3-5 Days
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