Leybold SCREWLINE SP dry screw pump

Leybold SCREWLINE SP dry compressing screw vacuum pumps are extremely robust with the internally cooled rotors, and a special cantilevered bearing arrangement that eliminates failure. These industrial dry vacuum pumps are designed to meet the special requirements of heavy duty applications with direct pumping path and two non-contacting shaft-seals that are practically wear-free. This also allows for longer maintenance intervals.

Based on the screw principle, the standard versions of the SCREWLINE pumps are air-cooled from the outside for industrial applications. Water-cooled versions are available to operate in air-conditioned rooms as well as ATEX-certified variants are available for explosion proof compliance.

SCREWLINE SP has a direct pumping path without multiple deflections for the process gas making it highly tolerant to process contamination as well as reduced buildup inside the pump chamber. This ensures lower maintenance and a high uptime in industrial processes.

The two non-contacting shaft-seals are practically wear-free, which allows for very long maintenance intervals. Shaft seal purge is usually required in industrial applications. SCREWLINE SP pumps are equipped with a purge gas supply unit as a standard.

The special cantilevered bearing arrangement eliminates a potential source of bearing failure as well as lubrication contamination into pumping chamber.

The cantilevered bearing arrangement also makes the pump chamber easily accessible. This innovative design feature allows the removal of the pump housing quickly and cost effectively making on-site cleaning of all surfaces in contact with the medium possible. This is a significant advantage for processes that involve a considerable amount of contaminants to deliver high uptime.