Understanding AODD Pumps
Air Operated Double Diaphragm (AODD) pumps are one of the most versatile and reliable fluid transfer solutions used in diverse industries across the globe. As leading AODD pump manufacturers in India, Ambica Machine Tool takes pride in engineering pumps that offer durability, safety, and operational flexibility. This blog will dive deep into the mechanism of air-operated diaphragm pumps, showcasing how they function and why they are preferred across multiple sectors.
Whether you are looking for AODD pump manufacturers near me or trying to Buy AODD pumps online in India, this comprehensive guide will help you understand why these pumps remain a top choice for fluid handling.
What Is an Air Operated Diaphragm Pump?
An Air Operated Double Diaphragm (AODD) pump is a type of positive displacement pump powered by compressed air rather than electricity. It consists of two flexible diaphragms that move back and forth, creating suction and discharge actions to transfer liquids.
Unlike centrifugal pumps, AODD pumps are self-priming, can run dry without damage, and are capable of handling abrasive, viscous, or shear-sensitive fluids.
Core Components of an AODD Pump
To understand the working mechanism, it is essential to know the main components:
- Air Valve: Distributes compressed air to the diaphragms
- Diaphragms: Flexible membranes that create pumping action
- Check Valves: Prevent backflow of fluid
- Inlet/Outlet Ports: Direct fluid into and out of the pump
- Manifolds: Distribute the fluid across the pumping chambers
- Chambers/Housings: Contain diaphragms and fluids
How Do AODD Pumps Work?
The pumping action relies on a simple yet powerful mechanism driven by compressed air.
Step 1: Air Intake
Compressed air enters the central chamber of the pump via the air valve. The valve directs the air towards one diaphragm.
Step 2: Diaphragm Movement
As one diaphragm is pushed outward by the air, it creates a suction effect on the opposite side, pulling fluid into that chamber.
Step 3: Discharge
While one diaphragm draws in fluid, the other diaphragm is pushed inward, forcing the previously drawn fluid out through the discharge port.
Step 4: Alternating Cycle
The air valve switches direction, sending air to the opposite diaphragm and repeating the cycle.
This alternating motion creates a continuous flow of fluid, making it ideal for varied and demanding industrial applications.