When faced with choosing a pump for pharma, food or cleanroom applications, I often get the question: Why a diaphragm pump? Here I give you my top nine reasons - based on the knowledge and experience we advise our customers with every day.
9 good reasons to choose a diaphragm pump
That's why a diaphragm pump (AODD) is often the best choice:
1. Low purchase price
Compared to many other pump types, you get a lot for your money. The simple design and low maintenance requirements make diaphragm pumps an economically attractive choice - also in the long term.
2. High reliability
AODD pumps have few moving parts and no electrical components. This minimises the risk of breakdowns and makes them particularly suitable for critical processes where continuous operation is essential.
3. Versatility
They can handle everything from water and foamy liquids to viscous, particulate and aggressive media. I have customers who use the same pump for multiple media types, which makes operations more flexible.
4. Compatible with aggressive chemicals
With the right choice of material, AODD pumps can withstand even the most challenging liquids. We often see them used in CIP solutions and when dosing acids and bases in pharma.
5. Particle resistant
This flow without a rotor or impeller means that particles in the media do not damage the pump. This is especially relevant in processes with pulp, fibres or protein lumps.
6. Simple maintenance
The pump can be disassembled quickly, without special tools. This saves time and reduces service costs. I often recommend AODD in facilities where frequent cleaning is required.
7. Submersible
In wash zones and clean room installations, the ability to place the pump below the liquid surface is a big plus. A customer in the food industry gained much more flexibility after switching to the AODD pump.
8. Dry run safe
Diaphragm pumps can run without fluid without damage. This reduces the risk of damage in case of accidental downtime or empty suction.
9. Closed fusion membrane
This maximises process and product safety. The risk of contamination or media leakage is minimised - essential in sterile and validated applications.
Want to know more about which diaphragm pump is right for your process?
We offer a wide range of plastic and metal air-operated diaphragm pumps in different sizes and materials to suit everything from sensitive media to aggressive chemicals.
Get in touch to learn more about the possibilities with diaphragm pumps - we're happy to help you find the right solution.
Martin Kjældgaard Pedersen
Product & Field Service Manager
Jørgen Q. Tran
Product Manager
