How to avoid leakage in your diaphragm pump!

Diaphragm pumps have a number of advantages and potential applications.


They have self-priming properties, can withstand running dry and are suitable for ATEX applications and aggressive media.


However, if the diaphragm breaks, there can be serious consequences.



If the diaphragm breaks, the medium can run out into the air side of the pump. This destroys the pump, which therefore needs to be replaced. This costs money - both in terms of downtime and the cost of a new pump.


Furthermore, the medium could also run out of the pump and into the surrounding environment. This could be a major problem - especially in the event of a hazardous chemical.


But fortunately there is a solution to this.


The solution

Our diaphragm pumps from Versamatic's E-series are equipped with a fusion diaphragm that is leak-proof so that no liquid flows into the air side of the pump.


Usually there is a hole in the diaphragm and a nut on the back. There is a risk that the liquid will run backwards or that the diaphragm "cracks" if it is run too hard.


Instead, the fusion diaphragm has thread moulded into the membrane so that it is screwed on. There is thus no leakage path in the diaphragm.


In the video here you can see how a Versamatic AODD pump works.

Compressed air fills the left inner chamber, causing the opposite diaphragm to create negative pressure. This lifts the lower valve ball and sucks fluid into the inlet.


At the same time, the left chamber is in the discharge cycle. This causes the top valve ball to open and discharge fluid.


This process is repeated continuously and alternates between the two chambers.

Contact us if you would like to find out more about our diaphragm pumps from Versamatic.
Philip Ellegaard Andersen
Area Sales Manager Food & Beverage
Jørgen Q. Tran
Product Manager
Martin Kjældgaard Pedersen
Product & Field Service Manager