Amount of Glycol Required

[roc service]

I have to fill a drycooler for an emergency generator. I have a 1000 feet of 4" schedule 40 black iron pipe interconnecting between the drycooler, the generator and the pumps. I'm adding a 50/50 premixed propelyene glycol solution to the system. Approximately how many gallons due I need to fill the system? They delivered (20) 55 gallon drums to me today and I believe that's way too much. Can anyone help me with a conversion table before tomorrow morning. It's late and I can't seem to find the answer right now because I worked late and I'm bushed.

Thanks ROC

[mikethemech]

I found a few sources online that said .65 or .66 gallons per foot of 4 inch pipe, so with a thousand feet you need about 660 gallons for the interconnecting pipe. You should already know the volume of the rest of the system.

I hope that helps

Mike

[roc service]

Mike:

Thank you very much for your input. The system took 495 gallons and another 110 gallons for the glycol storage and recovery tank. I left (2) 55 gallons drums for the generator technicians to install. That left me with (7) extra 55 gallons drums that the contractor who ordered it is now going to return to the chemical company.

ROC

[oroy54]

Now run a freeze point and a nitrate sample. The freeze point is easy. The nitrates is a couple of drops of this and that. It takes 2 minutes max. One barrel should be enough. The glycol is an oxygen scavanger. But it can absorb so much. Roy

[Edited by oroy54 on 10-18-2006 at 11:48 PM]