HEI Standards

The HEI is acknowledged worldwide as the leading standards development organization for heat exchange and vacuum apparatus. To learn more about the standards offered by HEI, please click on the links below. To order standards, print the order form, complete the form, and fax it to the HEI office.

To order online, click here. You will be redirected from the HEI site to our publications fulfillment partner, Great Lakes Direct.

Available HEI Standards

Standards for Direct Contact Barometric & Low Level Condensers, 8th Edition

Standards for Closed Feedwater Heaters - 8th Edition

Standards for Shell & Tube Heat Exchangers - 5th Edition


Standards for Steam Surface Condensers - 11th Edition


Performance Standard for Liquid Ring Vacuum Pumps – 4th Edition


Standards for Steam Jet Vacuum Systems - 7th Edition


Standards and Typical Specifications for Deaerators - 9th Edition


Standards for Air Cooled Condensers - 1st Edition

Standards for Gasketed Plate Heat Exchangers - 1st Edition