For handling aggressive media
The semi-welded plate heat exchanger is a welded plate heat exchanger designed specially for handling aggressive media. The semi-welded plate pack consists of welded channels which alternate with traditional gasketed channels.
Working principle
The aggressive medium flows in the welded channels and the only gasket in contact with the aggressive media are two circular porthole gaskets between the welded plate pair. These porthole gaskets are available in highly resistant elastomer and non-elastomer materials. Traditional elastomer gaskets seal the channels for the non-aggressive medium.
Typical uses are:
Heating and Cooling of petrochemicals
Cooling of sulphuric acid
Evaporation and Condensing in refrigeration plants
For more detailed information about the product above please select a product data leaflet in the centre column of this page, or contact Alfa Laval directly.
