Case Study – Diaphragms for Control Valves

Case Study – Diaphragms for Control Valves

About the client


The Client is a leading control valve manufacturer based in Germany.


Business Problem


The client was not happy with their existing diaphragm supplier due to consistent delays in supplies. The supplier’s delivery cycle time was higher than the valve manufacturing cycle time, resulting in delays and production loss.


Our Solution


Harkesh Rubber offered to develop one of the diaphragms for life cycle tests. Initially, the client’s team was a little skeptical. However, they agreed to the testing. We developed the first batch of diaphragms which were put to test simultaneously with diaphragms manufactured by their existing supplier.




After two weeks of testing, while our diaphragm was in perfect working shape. At the same time, the diaphragm from the existing supplier had to be replaced. While our first diaphragm was still in good shape after 1.2 million cycles test, the existing supplier’s second diaphragm too was worn out. The client switched the entire range of diaphragms to Harkesh Rubber after the successful testing.




● 25% reduction in diaphragm delivery cycle time

● 20% reduction in diaphragm purchase cost


Since 1982, we have built a reliable reputation in the rubber industry on our unique solution-based approach that has made us the preferred partner for critical sealing solutions. We provide high precision, cost-effective sealing solutions for technically demanding applications.


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