Can you comment on which of your pumps would support continous-on operation overnight without overheating?

When I do vaccum bagging, I frequently get pinhole leaks from connectors etc which are difficult to debug. My parts are mostly long tubes of special shapes. All reagents come from you, except that, as a bag,  I use thick long polypropylene sleeves which I connect with your red standard disk-connector, and seal both ends with a hot wire. The leaks appear to be around the connector, and are hard to debug. So  I just set my oil-free pump on continous pumping. It has a feedback, so it switches on/off every 3 seconds to retain the vacuum, which causes overheating, and requires me to set-up a separate cooling fan. I am now considering to get a separate pump, and I am wondering how it would behave if left on cotinously for 12-16 hrs at a time.

I would agree that finding the leaks is the better solution than running the pump all the time.  It should be possible to get a leak free through bag connection.  Make sure there are no creases or folds of fabric trapped by the connector.  Ensure the rubber seal is in good condition and correctly seated.  Also ensure any connectors attached to it are properly sealed with correctly applied PTFE thread sealing tape.


Warren Penalver
Easy Composites / Carbon Mods - Technical Support Assistant