RUVAC WAU 251 vacuum pump. Technical specifications, price, availability and product images should be reviewed before publishing.

The RUVAC WSU 251 is a Roots-type vacuum booster pump designed for rough and fine vacuum applications. It is used together with a backing pump to increase pumping speed and improve evacuation performance. The WSU version includes a pressure balance line between the intake and discharge flanges, allowing reliable operation across a wider pressure range