Technical Support for Service Some customer does the service or maintenance with its own staff on the plate heat exchanger. We can help our regular customers with the necessary support of servicing a PHE. A Service of a Plate Heat Exchanger can be quite simple, but also a complicated procedure. It all depends on the application and the model of the PHE. Gasket material recommendation to your PHE application If you are not sure what rubber material you need or have been using, we can recommend you of what to use. Sometimes this can be a very straight forward procedure, but If you are not sure what material you need or have been using, we can recommend you of what to use. Sometimes this can be a very straight forward procedure, but especially when the PHE is used for very complicated mixtures of chemicals, this can be a very useful help.