The pressure system in the plate freezers from DSI is type-approved in accordance with the requirements of the European Union (EU), Det Norske Veritas (DNV) and The Russian Maritime Register of Shipping (RS). Other approvals can be issued if needed. DSI is the only manufacturer of special CO2 plates.
DSI plate freezers, both vertical and horizontal, are approved for use with all ordinary refrigerants such as freon, ammoniac and carbon dioxide.
Please note that freon is going to be phased out in many countries according to the Montreal and Kyoto agreements. Therefore, many companies are evaluating the advances of using carbon dioxide in their refrigeration plants instead.
Special attention has been paid to the design pressure to obtain a satisfactory defrosting process, especially in the DSI vertical plate freezers.