The young guns with the old qualities
Hugo, the tireless compressor from the 1950s, has descendants of which it can be proud. Its great grandchildren are young, powerful, dynamic and modern, no matter whether small or large. Of the current compressor generation, the single-stage, semi-hermetic compressors of the HG series resemble Hugo the most. They have a housing with a sophisticated gas routing system, an optimised valve plate system, interchangeable and highly efficient motors, always an oil pump and many, many more features. With its seven different sizes and 25 capacity stages, the HG series covers the wide range from 5.4 to 281.3 m³/h (with 50 Hz operation).
In addition to the models for synthetic refrigerants, there are also HG compressors for operation with hydrocarbons, as well as versions for use with the refrigerant CO2 in subcritical and transcritical systems. These models, optimised for natural refrigerants, are able to meet the highest requirements for sustainable, climate-friendly and environmentally beneficial operation.
Despite all the features that make them modern and sustainable, the HG series compressors have more than just the nominal speed of 1,450 rpm in common with their ancestor Hugo. They uphold qualities they inherited from the previous generations: stamina, discipline (smooth running), reliability and frugality. The latter in two senses, incredibly energy efficient, yet requiring little to no maintenance.
Whether they are as durable as Hugo, only time will tell. We are confident, though, that the current series will prove to be work horses too. Because they have been designed and constructed with the same care as their ancestors, or our world-famous compressors for buses, trains, ships and refrigeration vehicles. The mobile compressors withstand harsh operating conditions day after day. They work in extremely hot and cold temperatures, have to heat and cool in alternation, are resistant to vibrations and shocks... We know how to produce reliable compressors.