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HEI 119 5th Edition

Performance Standards for Liquid Ring Vacuum Pumps and Compressors, 5th Edition
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The HEI Performance Standards for Liquid Ring Vacuum Pumps and Compressors (5th Edition) is the primary industry document for defining how liquid ring machines are tested, rated, and applied.

Unlike standard centrifugal pumps or dry vacuum systems, liquid ring pumps use a rotating "ring" of sealant liquid (usually water) to create a vacuum. Because their performance is heavily dependent on the temperature and properties of this sealant, the HEI standards are essential for ensuring that a pump's advertised capacity matches its real-world performance.

SDO HEI: Heat Exchange Institute
Document Number 119
Publication Date Jan. 1, 2017
Language en - English
Page Count 32
Revision Level 5
Supercedes
Committee
Publish Date Document Id Type View
Jan. 1, 2017 HEI 119 5th Edition Revision