Pumping Sulphuric Acid 98% with an AODD Pump: Challenges and How to Avoid Frequent Diaphragm Failure
Sulphuric acid at 98% concentration is one of the most demanding fluids you will ever ask an AODD pump to handle. It is not just corrosive — it is dense, with a specific gravity of 1.84, nearly double that of water. It generates heat on contact with moisture. And it will destroy the wrong pump […]
PVDF AODD Pump: When Is It the Right Choice of Material?
More often than not, when I visit factories in Malaysia that are handling aggressive chemicals, I find them using polypropylene (PP) AODD pumps for fluids that require PVDF. The reason is always the same: PP is cheaper. It is understandable. But cheap is not always cheaper. A PP pump running with Nitric Acid 68% or […]
Why Engineers in Chemical Processing Keep Choosing AODD Pumps Over Centrifugal
Walk into any chemical plant, glove factory, or water treatment facility in Malaysia and you will find AODD pumps running. Not because they are the cheapest option. Not because they are the simplest. But because for a specific set of conditions — and those conditions are extremely common in chemical handling — they outperform the […]