Air Operated Double Diaphragm pumps are utilized in a variety of sectors for different purposes. AODD pumps extract gas from a sealed space to create a partial suction. The fluids flow through the suction in reaction to the pressure gradient. Unless one of the diaphragms breaks, it is virtually leak-free.
AODD pumps outperform conventional mechanically powered pumps because they are sturdy, reliable, easy to maintain, and competitively priced. AODD pumps have a long operating lifespan, even in harsh situations, making them the perfect companion for industrial applications such as Mining, Construction, Ceramics, Paints & Coatings, Oil & Gas, Wastewater Treatment, & Chemical Dosing.
The most common types are:
- Positive displacement pumps
- Momentum transfer pumps
- Entrapment pumps
Since positive displacement pumps occupy a wide range of applications, we will focus on how to choose the best positive displacement pump for your industry.
Air-operated double-diaphragm (AODD) pumps have distinct features that other pump technologies cannot match in the most demanding situations. Let us look at the 3 best practices that will help you choose your AODD pump.
1) Ensure that the AODD pump is the right choice for your industrial application
Air-operated double diaphragm pumps, or AODD pumps, are the most dependable pumps for safely, effectively, and accurately moving liquids and viscous fluids. Their varied control activities, from flow to shear and from solids filtration to acute liquid measurements, make them excellent for various industries and applications.
Let’s take a look at different industries for which AODD pumps are the best choice.
● Construction
More than being efficient, an AODD pump is highly durable, easy to clean, and capable of withstanding the abuse from heavy machinery on construction sites. They are particularly corrosion and chemical-resistant. As a result, you can use them to pump any viscous, acidic, or corrosive substance.
AODD pumps make the job run faster with a pump system you can rely on, even on challenging ground sites, sumps or below-ground mines.
See Also: IDEX India Sandpiper AODD pumps
Water Treatment
AODD pumps are ideal for wet circumstances because they may operate without power. Hence, they can be critical for safely handling municipal water treatment. They can also be utilized in industrial sludge/effluent treatment plants for transferring solid-laden media, filter press, and sumps as utility pumps.● Food & Beverage
Sanitary diaphragm pumps are critical for increasing productivity and revenues while maintaining hygienic standards. AODD pumps carry fluids such as water, cocoa, syrups, and pastes.
● Pharmaceuticals
Few sectors need more accurate measurements and attention to detail than pharmaceutical development and manufacturing. Accurate flow management in AODD pump systems helps ensure that our pharmaceuticals are manufactured safely and cost-effectively
2) Get the best fit for your fluid transfer
Analyzing the fluid type can help you deduce which parts to include in your AODD pump. Your AODD pump manufacturers will allow you to acquire the right technology accessories.
The most important thing to consider is the fluid’s Type, Composition, and Nature to minimize corrosion of the wetted parts. It’s also important to check if the liquid is clean or of abrasive particles or slurries.
Corrosive fluid
When corrosive fluids such as sulfuric acid, nitric acid, and sodium hydroxide come into contact with the material, they damage it.
For Sulfuric acid, for example, we can use a PTFE/Santoprene Diaphragm and PVDF as the wetted material.
Toxic Fluid
Toxic fluids like Lead, Mercury, etc., have the quality of being toxic or poisonous. Since AODD pumps are seamless, they are ideal for carrying toxic fluids with the help of a leak detection system.
Flammable Fluid
Acetone, Benzene, and Petroleum easily catch fire. Because AODD pumps are air driven, they are inherently explosion-proof, but it is still recommended to go for ATEX-certified pumps.
Shear Sensitive Liquids
When subjected to shear (or churning), liquids such as tomato ketchup, emulsions, paints, and curd can change their properties. AODD pumps are appropriate for such liquids since they operate at a slower speed.
Vapor Pressure
Vapor pressure is very crucial when it comes to flow. The vapour pressure of liquids such as diesel and hydrocarbons is low.
We must guarantee that such pumps run at a moderate speed and have a restricted suction lift; otherwise, the pump may not supply the proper flow.
3) Maintenance and Service are the most important.
Though air-operated double-diaphragm (AODD) pumps are well-known for their dependability, they, like any other piece of equipment, require regular maintenance and repair to maintain long-term durability.
- Fewer moving parts mean maintenance is simple and can be quickly carried out.
- Combination of unclean and uncontrolled air can harm and decrease
- Compressed air should be filtered and managed to increase the life of downstream AODD pumps.
- Clean, controlled air is the key to trouble-free pump functioning.
- Utilize pulsation dampeners, leak protection, and containment duty to protect your pump.
Conclusion
In conclusion, the best practices while choosing an AODD pump are to ensure which application you want to employ, choose the ideal parts for your product fluid, and ensure you follow ideal maintenance routines.
IDEX India has a team of professional engineers offering pan India service after installation. We understand your needs, develop maintenance cycles, provide spare parts, and support you through the pump lifecycle.