VACUUM DEVICE FOR PLANTS FOR THE PROCESSING OF CONTAINERS, AND METHOD FOR CONTROLLING A VACUUM DEVICE

摘要

An apparatus for generating negative pressure in an installation for filling containers with liquid bulk product includes a vacuum device, and a control-and-regulating unit. The vacuum device has a controllable suction power, and has a plural electrically-powered vacuum pumps. These are configured to operate in parallel. The control-and-regulating unit is configured to control the number of vacuum pumps that are active, thereby controlling the suction power.