The two stage, oil lubricated TRIVAC B is the logical step ahead within the well-proven TRIVAC concept. Here the performance and the characteristics of the pumps have been adapted without compromise to market requirements. The TRIVAC B pumps with their comprehensive range of accessories have proven themselves time and again as rugged pumps in many and varied applications. The ultimate pressure is about 10^-4 mbar. The pumping speed, depending on the pump size, TRIVAC D 4 B to TRIVAC D 65 B, is in the range from 4 to 65 ³/h (2 to 38 cfm).