Search results for query: *

just a follow up for those who might encounter a smilar problem... tests I'm running indicate that there is significant coolant loss through polyurathane tubing we have. In comparison, FEP tubing seems have no loss in the same arrangement.

IRstuff Yes it would empty out if no one refills the system, but it hasn't been allowed to do so. The tank isn't filled to the brim, which is supposed to account for the thermal expansion I think. The system operates fairly tightly around 50C. I'm told the glycol content is there for...

the circulation tank capacity is 200mL and I use a syringe to fill up to a mark.

Thanks for the reply IRstuff. I've just started looking into this, but other people have been monitoring the system periodically. We monitor the coolant levels in the circulation tank and this has been a continuous problem.

Hi All I'm investigating a slow but continuous leak (~5ml in 3 days) in a closed loop cooling system. The working fluid is polypropylene glycol. There are no visible leaks, so I'm wondering if the coolant could be diffusing/evaporating through tubing elements which are all plastic. Some...