First off, what is an Air-operated Double Diaphragm Pump (AODD)? A diaphragm pump is a pump that is powered by compressed air. As you would expect, these pumps contain a diaphragm to move fluid and some solids through the pump. In a AODD pump, there are two diaphragms connected by a shaft. In each corner of the pump in both the suction and discharge piping sections there are ball valves. The diaphragms and ball valves are the most basic parts of a diaphragm pump.
Basic Operation of an AODD Pump
There are two strokes to these types of pumps. The first stroke, powered by compressed air, moves the shaft, which in turn, shifts the diaphragm outward which pushes the fluid toward the discharge end of the pump. As this stroke is happening, the opposite diaphragm is creating a suction/vacuum drawing more fluid into the pump from the suction end. This process repeats until the compressed air is shut-off or the suction end of the pump runs out of fluid.
Types of Applications
Diaphragm pumps are extremely versatile. They can be used in a variety of applications due to their design and can handle a range of fluids, solids, and viscosities. Some application examples are:
- Chemicals
- Water
- Paint
- Thick fluids
- Slurry/small solids
- Gels/creams
As you can see, AODD pumps are very useful and can most like be used in a majority of applications. If you would like to learn more regarding diaphragm pumps or a product quote, please email info@advancedpump.com or call us at (781) 932-3030
