At the pump manufacturer HERMETIC from Gundelfingen, the trend towards the use of R-717 and R744 in large refrigeration systems, which was forecast against the background of the new F-gas regulation, is confirmed. These refrigerants have no or very low global warming potential and are not harmful to the environment if small amounts escape. However, R-717 and R-744 also pose hazards to humans. HERMETIC explains the associated technical challenges for the refrigerant pumps and gives tips for pump selection. R-717 as a refrigerant is characterized not only by its environmental compatibility but also by its high level of economy. The reason for this i ...