DESIGNING STEAM JET VACUUM SYSTEMS For costeffective vacuum pumping, the proper placement of condensers and pipe supports are critical DAVID B. BIRGENHEIER AND THOMAS L. BUTZBACH, Graham Manufacturing Company, Inc. DONALD E. BOLT, Foster Wheeler Energy Corp. RAJENDER K. BHATNAGAR, NashKenema, Inc. RUSSELL E. OJALA, CrollReynolds, Co. JOHN AGLITZ, Nitech, Inc.