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Things to consider when selecting an AODD Pump| DEFU Sep 03 , 2023

Air diaphragm pumps are used in the facilities are used in facilities of all sizes, and in a variety of different industries. From petrochemical to food and beverage, these pumps are popular and versatile. Their unique design is ideal for transferring highly abrasive or viscous products. But what we need to think when we select Pneumatic diaphragm pump?



  • What application will the pump be used in?
  • What are you pumping?
  • Do you need lube free operation?
  • What are your performance parameters(capacity, head, air consumption, viscosity, suction lift)?
  • Do i need a pulsation dampener?


Air Distribution System(ADS)

  • What ADS best suits my application needs?
  • How reliable is the ADS?
  • Dose the ADS have anti-freezing technology?
  • Dose the ADS have intergrated variable performance controls?



  • Before installation pls read the caution section of the pump manual.
  • What are your piping considerations(valves,elbows, pipe friction losses etc)?
  • Do you have sufficient air pressure and air volume for the pump?


Consider the pump materials

  • What media will you be pumping?
  • What are the temperature limits of the wetted materials?
  • How abrasive is the media being pumped?


When it comes to pumping chemicals, pump materials matter.


Materials widely used in pumps for chemical transfer include polypropylene (fitted with PTFE or Santoprene diaphragms. Santoprene is very popular because of its excellent chemical resistance, flex life, abrasion resistance and low cost.


Stainless steel units are a great choice because they work well in outside conditions and can handle direct sunlight better than plastic pumps (plastic can be affected by UV radiation). Stainless steel also deals with extreme cold and hot temperatures better than plastic units.


Pls contact with Cindy(sales9@defupump.com) for your application, we will give your professional service, we are the professional diaphragm pump supplier in China.

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