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A vacuum or negative pressure can be created in numerous ways. For engineering purposes, a vacuum pump is the obvious choice, but which type of vacuum pump is the most efficient and most environmentally friendly?
A vacuum pump or vacuum generator creates negative pressure. There are several different types of vacuum pumps, all rated according to their ability to generate vacuum flow.
This white paper explains the difference between compressed air-driven and mechanical pumps, and single-stage and multi-stage ejectors.