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The LB 8 series oil lubricated pump is specifically engineered with compressed components, enabling minimal final pressure force output. It integrates an upgraded mechanism of efficient damping and recovery functions, resulting to full reduction of oil vapor within the outlet zone. Its sealing device limits the flow of oil from diverting back in case that the unit stops under vacuum. The intake process can be configured by the user with some specialized gear fittings. This assembly offers optimized functionality within operations in the evacuation of closed small vessels and for continuous task execution, with minimal pressure rate requirement of 400 mbar.