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  1. Pneumofore
27 January 2011

Shorten the Drying Time of Gas Pipelines with Pneumofore Systems

Pneumofore, the oldest rotary compressor and vacuum pump manufacturer worldwide, is pleased to offer a free service of total drying time calculation. All you have to do is to simply provide the total water mass, the pipeline volume (length, diameter, water film thickness) and the dew point.

Pneumofore’s vacuum systems, designed for the drying of pipelines, are exceeding expectations in terms of drying process duration. With 75kW (100hp), one single stage rotary vane vacuum pump model UV50 evacuates 214kg/hr of water vapour with the capacity of 3240m³/hr (1,908 cfm) and leaves no further power supply requirements.

The minimal space needed for such a Pneumofore vacuum system makes the solution very attractive for the installment on vessels, off or onshore. Additional vacuum stages can be added to the backing pump, depending on the final dew point. A double stage system achieves -48°C (-54°F) dew point, which corresponds to 0.05mbar(a). The capacity of these air-cooled systems depends on the size of the backing pump and further pump stages. The systems with larger capacity offer a shorter drying time.

Vacuum technology is commonly used during the production of lubricants for industrial and automotive use for decanting liquids in large quantities, and for the evaporation...
Pneumofore was engaged in the drying of a 1,386km-long pipeline spanning from East to Western India in 2007, as part of a collaboration with US-based...
For the drying of gas pipelines down to dew point of -32°C [-25°F], Narmada Offshore used a fleet of Pneumofore air-cooled vacuum systems.
Gazprom used Pneumofore vacuum systems for the drying process during the commissioning of gas pipelines. This solution was later extended for the drying of thousands...
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