5 Feb 2009

Erwin, your name is gonna stick in my mind...for several reasons: You don't quit until you've explored all options and possibilities. 

You obviously want to have satisfied customers, not just make a sale.....a person wishing only to make a sale will give it all in a couple of "blows" then, buy it or not, they're done. 

You also obviously know your business and this day and time that's not terribly easy to find. 

I thank you very much for the effort you've gone to for me on this.  It will not be forgotten. 

A question for you:  Do you ever come to the US and are you coming toward East Tennessee anytime soon?   If you were to be, i'd very much like to set up a meeting with you and our Engineering group for you to discuss heat exchangers. 

Take care and again, MANY THANKS for your help. 

Lynn Herron
Engineering Projects
(423) 534-0428

The Pembroke Pollution Control Centre is using the DDI Heat Exchanger with very positive results.  Raw sludge with an average temperature between 11* C to 19* C flows through one side of the heat exchanger and re-circulated sludge from the digesters with temperatures ranging in the high thirty’s flows through the opposite side of the heat exchanger.  This has resulted in substantial savings has the raw sludge is increased in temperature prior to entering the digesters at no expense to the City sewage system.  After almost two years of operation no plugging has occurred and it works as per specification.  I am very satisfied with the results of this piece of equipment.   

David Atkinson

City of Pembroke
Utilities Superintendent
Office 613-735-6821 ext. 1490
Cell    613-281-2141
Fax    613-732-7028

12 Sep 2007

Vitalix Inc. has been using the DDI heat exchanger almost a year now with very positive results. Raw molasses at 65% to 70% solids is running on one side and hot water on the other. We have had no problems with plugging or pressure buildup. We are also very pleased with the effectiveness of this unit in heat transfer. Thank you for your help and support. 

Plant Mgr.  Doug Olson
308-762-8358
Vitalix Inc.
Alliance NE.