Features

◆ Step-by-step variable diameter & pitch Roots boosting,compact structure, high compression ratio up to 200:1
◆ Internal bypass for optimized airflow, reduced heat concentration, no overheating
◆ Lower inter-stage pressure difference, reduced backflow,improved pumping efficiency, reduced backing pump load

◆ 15%-20% lower energy consumption

Applications

◆ General corrosive & dusty applications, especially ideal for frequent Atm-to-high-vacuum cyclic operation.