Semi-hermetic compressors for subcritical CO2 applications

Based on our current semi-hermetic product range, with its outstanding advantages and features, as well as our longstanding activities, we are now expanding the bottom end of our CO2 compressor series for subcritical cascade systems. Especially suited to supermarket refrigeration applications and industrial refrigeration. Max. permissible operating pressure see operating limits diagram.

Special features

As Bock compressors are extremely high quality and robust, the coordination with the CO2 is limited primarily to the motor design together with the individual mechanism adjustments as well as small modifications in the valve and seal areas. This permits the greatest possible level of operational safety through the extensive use of tried-and-trusted standard parts. In addition, there are the best possible conditions for economic spare part storage.

CO2 as a refrigerant

Within refrigeration technology, carbon dioxide (CO2) is known by the name R744 and has a long history. It is a colourless gas which liquefies under pressure and has a slightly acidic smell and taste. Carbon dioxide has no ozone depletion potential (ODP=0) and a negligible direct effect on global warming (GWP=1) when used as a refrigerant in closed systems. It is not combustible, is chemically inactive and heavier than air. Carbon dioxide has a narcotic and asphyxiating effect on humans only at higher concentrations. Carbon dioxide is available naturally in large quantities.

Available models