Recent content by hawkeyes

Dow came back with the following: Properties for Dowfrost (Propylene Glycol) Electrical conductivity for 50% at 25 deg C = 2,060 micromhos/cm and 249 micromhos/cm for 50% at 0 deg C. Looks like the inhibitors increase the conductivity substantially. I'll have to check detection equipment...

This is what Hercules has to say. "I suggest you use an "inhibited" glycol - one with corrosion inhibitors already added. This will contribute conductivity that will enable us to use conductivity meters for detection in the event of leaks".

Drazen, you seem to have drifted from the original question. The problem is glycol in the condensate which could be fatal to the boiler. We need to be able to tell if any glycol is leaking into the condensate i.e. heat exchanger tube failure or leakage.

In this particular system we are using an expansion tank with a bladder, so we don't have a make-up pump.

If you want some help with this one you'll have to be clearer. Are you using hot Glycol/water in a heat exchanger to heat the crude?

Does anyone have any information on electrical conductivity of 50% propylene glycol with inhibitors? I have a system that is using heated glycol to heat make-up air. The glycol is heated in a shell and tube heat exchanger, and I need to detect any glycol leaks into the condensate by measuring...