Dry vacuum pump     ATEX dry pump     centrifugal exhauster     piston type pump     roots vacuum pump     scroll vacuum pump     side channel     lubricated rotary screw     rotary vane     liquid ring         America     Asia Pacific     Europe         DE     ES     FR     IT     UK     STERLING SIHI GmbH - www.sterlingsihi.com - Lindenstrasse 170, 25524 Itzehoe, Germany email: sales@sterlingsihi.de, Tel. +49 (4821) 771-01 products:   Dry vacuum pumps The SIHIdry meets the need for a robust, intelligent and reliable vacuum pump offering outstanding liquid and particle carry-over capabilities while precisely matching duty conditions with a totally controled temperature profile: - Two vertical non-contacting screws rotate in opposite directions, transporting the gas from the top inlet to the bottom outlet of the casing. - The shaft are supported by bearings which are at atmospheric pressure and not exposed to vacuum. - The two electronically synchronised motors are located within the pump ensuring that no mechanical shaft seals or gears are needed. The benefits of this design include: - capable of handling particle and liquid carry-over, - no consumption and no disposal of operating fluid or lubricant, - up to 20,000 hours running time between maintenance checks, - minimum maintenance required, - fail safe operation under adverse process conditions, - low operating costs, - no need for flame arresters for Zone 1 and Zone 2 applications     Keywords     www.vacuum-guide.com