The increasing acceptance of natural gas as primary energy in different market segments and the variance in consumption between the seasons require more and more buffer storage capacity, because of contracted constant gas supply quantities.

The surplus gas becoming available during the summer time can be stored and withdrawn during the winter time for covering peak demands.

Based on these facts, the gas distribution companies utilize exploited gas fields for gas storage by drilling additional wells and installing gas compression facilities.

Such a compression duty with a wide range in flow and discharge pressure requires a great flexibility of the compression equipment, including high reliability and availability during operation periods.

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