> Does anyone have experience with one of the 2 pumps or a
> smiliar pump from the same brand, and what where the results?
I have worked with the KNF pumps and Vacubrand pumps which seems to be quite similar to the ILMVAC, and the results were very good.
> The lowest price i was able to find for both pumps is around
> 1050 euro/1311 usd should i look further ?
I doubt you will get them any cheaper than that.
> Could anyone having worked with the laboport vac pump tell
> me where the gas outlet is located as i dont seem to beable
> to find it on the picture.
The picture of the KNF pump doesn't show the 8mbar model. The 8mbar model has two pump heads (those white hexagonal thingies on top, the one in the picture has only one). The outlet is located on the same side as the inlet, and it looks the same. The one in the picture is one of those shitty 80-100mbar models, and the outlet must be on the other side of the pump head.
> Are there any other good/cheap diaphragm vacuum pump brands
> i should look at?
The de-facto standard vacuum pump manufacturer for laboratories is Vacuubrand in my corner of the world. Very high quality pumps, but they aren't cheap at all.
This is their most basic equivalent, the MZ2-C, which seems to be comparable to the above ILMVAC pump:
(https://www.thevespiary.org/rhodium/Rhodium/hive/hiveboard/picproxie_docs/000483031-file_e0ci.jpg)
They use this pump in many of their fancy chemistry vacuum systems like this one, it's just the basic MZ2-C with 1500-2000€/$ worth of accessories:
(https://www.thevespiary.org/rhodium/Rhodium/hive/hiveboard/picproxie_docs/000483031-file_ihtc.jpg)
http://www.vacuubrand.com (http://www.vacuubrand.com)
Thanks for the information, i think im going to purchase the ILMVAC pump they both seem to be high quality products however the ILMVAC has a higher flow rate.
Keep in mind that such a pump is not always adequate for ketone distillation. For MDP2P it's best to use an oil pump.
The pump is ofcourse only meant as an better alternative for the aspirator :) .
Iff you use an cold trap they last for ewer, iff not you have to shift the washer (gasket ?) 1-2 times a year( cost 130 euro).
What does this gasket/washer do?
I had the idea since these pumps are able to handle agressive vapors they would be pretty much maintenance free.