Ejectors Give Any Suction Pressure
Because of overlapping performance, it’s often a lengthy problem to arrive at the most economical design of an ejector. In practically every new application of high vacuum, we find it necessary to investigate thoroughly the many available means of producing vacuum to reduce equipment and operating costs to a practical and profitable level.
But the giant strides of technology have brought to light an entirely new concept in the study of vacuum-producing apparatus. Recent tests of 5-stage and 6-stage systems indicate that steam ejectors have carved a unique and popular place in industry where large volumes of gases must be evacuated—and they can produce almost any desired suction pressure.
In addition, by using only certain parts of a multistage system, one installation can serve the whole range of test conditions.
The simple principles on which ejectors operate and the almost universal use of steam and compressed air in plants of all kinds have given the ejector many advantages over other vacuum pumps. However, in spite of simple operating principles, the most economical design of an ejector is often a lengthy problem.
