The document describes the features and performance of the PVL35 and PVL35/B lubricated rotary vane vacuum pumps. They are suitable for evacuating closed systems or maintaining a constant vacuum within a specific range. These pumps have different final vacuum levels and nominal capacities, which are 0.5 Torr and 15 Torr respectively. They come with accessories such as inlet mesh filter, check valve, and gas-ballast valve. The document also provides technical data and performance curves.