AIR OPERATED DIAPHRAGM

AIR-OPERATED DIAPHRAGM :
Air-operated diaphragm pumps are positive displacement pumps that transfer liquids in wet commercial pumping applications. They run on compressed air and move slurries, solvents, and other high-viscosity liquids.

A diaphragm pump is a specific type of displacement pump that uses two flexible membranes. The membranes are connected by a central shaft, and create a separation between the compressed air and the fluid. A centrally located air valve alternately pushes one of the membranes to the side.
What are the disadvantages of a diaphragm pump?

Advantages

Disadvantages

  • Seal-less and oil-free
  • Low maximum speed
  • Self-priming up to 6 meters
  • Not very energy efficient
  • Simple cleaning/maintenance
  • Pulsed flow - requires dampener for reduction
  • Versatile design and function (can handle most media types)

 

  • Can run dry for short periods

 


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