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Role of Diaphragm in AODD Pump


The diaphragm plays a critical role in the operation of an air-operated double diaphragm (AODD) pump. AODD pumps use two flexible diaphragms that are connected by a shaft and move back and forth to create suction and discharge pressure. Here are some of the key functions of the diaphragm in an AODD pump:

  • Separation: The diaphragm separates the fluid being pumped from the compressed air used to operate the pump. This prevents the fluid from coming into contact with the air and helps to maintain the purity of the fluid.
  • Flexibility: The diaphragm is made of a flexible material, such as rubber or elastomer, which allows it to move back and forth as it is alternately compressed and released by compressed air. The flexibility of the diaphragm also enables it to handle viscous and abrasive fluids without damage.
  • Sealing: The diaphragm creates a seal between the suction and discharge sides of the pump. As the diaphragm moves back and forth, it creates suction on one side and discharge pressure on the other side, which moves the fluid through the pump.
  • Durability: The diaphragm is designed to withstand the stresses of repeated flexing and exposure to various fluids. The use of high-quality materials and careful design ensures that the diaphragm will last a long time and perform reliably in demanding applications.

Overall, the diaphragm is a critical component of an AODD pump and plays a key role in creating suction and discharge pressure, separating the fluid from the compressed air, and maintaining the purity and integrity of the fluid being pumped.