As Seen on heatinghelp.com - July 18, 2016
The Design Envelope Vertical-In-Line Retrofit allows building owners to replace the moving parts of an installed Armstrong constant speed pump while retaining the existing pump casing, insulation and piping. This new solution reduces the costs for equipment, shipping and scrap as well as installation labor.
The Design Envelope Vertical-In-Line Retrofit provides owners of existing constant speed pumps with an opportunity to save up to 70% on energy costs by upgrading to variable speed. Design Envelope technology accommodates future changes in flow requirements and its variable speed operation means longer equipment life (20%-30%), and greater reliability.