georgeverhese: PEDARRIN2 got it. They are special heat exchangers that are designed to protect potable water lines from a potential failure of a wall or tube. Rather than having one wall separate the fluids there is 2 walls and a thin air gap in between.
PEDARRIN2: Thank you for the answer...
In using a double wall heat exchanger using potable water and glycol lines, are there additional safeguards that are standard practice? For example a double wall heat exchanger AND a 20 psi differential between the lines. Is this standard practice or unnecessary?
I am exploring options for a Hydrocarbon Dew-Point Analyzer but cannot find anybody in town who has experience using these. I have a couple of questions for people who have first hand experience.
1) Chilled mirror technology- Is this sensitive to ambient temperature fluctuations?
2) Are these...