Hi, recently bought EC.4 and I have few questions whether it's normal and expected from this pump. Sorry for possibly stupid questions My old vacuum pump is oil-less so I'm kinda new to this pump.

Pump was filled with oil which came with vacuum pump up to half of the sight-glass.

1. When pulling vacuum oil vapor separator looks like this. It settles down as soon as full vacuum is reached. Is it supposed to work like that? Catch oil and collect it in the container?

2. When full vacuum is reached oil has lots of air bubbles. They disperse when pump is off. Is it normal?

3. What is the purpose of return check valve? I thought it was supposed to hold vacuum when pump is off. But as soon as I switch pump off - vacuum gauge drops to zero and you can hear air being sucked back to the vacuum pump through oil mist separator. So is the valve for holding vacuum or just for keeping oil getting sucked back into the tubing?

Thanks

If all is well with the spring then hopefully it is ok.  Personally, I am used to the older pumps without an NRV so old habbit of clamping off or having a valve in the vacuum line still tends to run through my mind as a back up.

We can ship to Lithuania ok by TNT so if you really struggle with the pump, then send it back and we will be able to send it to you no problem once looked at.


The rules for post Brexit have not been made yet. -  our government is still arguing on when/if we are leaving let alone the actual agreement!.    Worst case I can see a few extra hoops to jump through for shipping but we regularly ship outside the EU with full commercial documents  for  import duty calculations so I imagine we will be able to do the same to EU countries once we leave.   Obviously the finer details are yet to be finalised and as soon as we know we will announce to our customers if and how the Brexit process will effect ordering with us.


Warren Penalver
Easy Composites / Carbon Mods - Technical Support Assistant