ANVER has developed a line of multi-stage air driven vacuum pumps that will deliver 27" Hg (90% vacuum) at the low pressure of 45 PSI (3.1 bar). Lower pressure equates to cost savings and increased operator safety. MSP-AM Series Multi-Stage Air Powered Vacuum Pumps are light-weight and compact making them ideal for automation applications. They fit inside a hand yet offer the performance of much larger pumps. These Air-Miser pumps have super low air requirements.