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Best Industrial Uses Of AODD Pump


An AODD pump and peristaltic pump or hose pump is a type of positive displacement pump that uses compressed air as a power source. The compressed air is shifted from one chamber to the other by a linked shaft that allows the chambers to move simultaneously. This back-and-forth motion forces liquid out of one chamber and into the discharge piping while the other chamber is being filled with liquid at the same time.

These pumps use reciprocating elastomeric diaphragms and check valves to pump fluid. The liquid chambers are filled and emptied by fluid that is drawn through a common inlet and discharged through a single outlet.

Benefits of AODD Pump:

1. Variable Flow-rate & Discharge Pressure – Varying of air supply to the pump will vary the flow rate and/ or pressure that the diaphragm pump produces.

2. Seal-less/ Leak Free Design – No mechanical seal means that the Air pumps are totally contained & leak-free.

3. Ease of Maintenance – Diaphragm pumps are simple, non-technical & require no specialist training for maintenance. There are no special clearances or tools required for pump repairs.

4. Anti-Stalling/ Anti-Freezing Air Motor – The air valve is designed to be anti-stalling & anti-freezing; this assists allowing the AODD pump to be continuously operated.

5. Intrinsically Safe – No electrical power or auxiliary requirements meaning that diaphragm pump is Intrinsically Safe and can be operated in many hazardous situations/ applications like underground coal mines.

6. Submersible Options – Most AODD models can be fully submerged. When using as submersible pump, both the liquid path and external components must be compatible with the material in which the pump will be submersed. Submersed pumps must have a hose attached to air exhaust and the exhaust piped above liquid level.

Industrial uses:

Paints & Coating:

AODD pump are also used in the paint industry considering their ability to move viscous fluids like ink, acrylic, primers and coatings.

Moreover air pumps are capable of transferring solvents for washing systems and waste fluids. The main applications that we can find in this field are printing machines, inks maker, spray systems and cleaning baths.

Pharmaceutical:

In the Pharma field air operated double diaphragm pump is one of the main systems for pumping fluids considering that a large part of them contain particles and have high viscosity.

For this reason, AODD pump can handle chemicals, proteins, enzymes, vitamins, vegetable extracts, flavours, ointments, alcohols, blood plasma, additives, disinfectants, waste solvents, waste fluids and more. The main applications are filtering aids, ultrafiltration, aseptic transfer, tablet coating, distillation plant, reactors for the production and waste water treatment.
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