Advice For A Strong Vacuum Pump That Lasts

[white7proton]

I'm looking for people who are familiar with their equipment who can guide me to vacuum pumps that I can use when cleaning 4-MMC powder. Large amounts are cleaned and the vacuum pumps keep breaking and I'm looking for some help with links maybe or photos of the vacuum pumps that they use and are of strong high quality. I currently use 150mm buchner funnel and 2L flask but will increase to 300mm and 5L/10L flask. Hopefully there are people here who can advise me

 

[Berlin777]

water aspirator is quite resistant

 

[white7proton]

How long would it take to wash around 250g/300g total powder weight when done in a 150mm buchner and funnel?

I usually wash around 4 times

 

[white7proton]

So I can gauge the suction strength, it's total vacuum strength. Water aspirator seem to be low 30 to 50Lper minute I believe

 

[Berlin777]

it's not the strongest pump but it's resistant, I usually start with water aspirator then finish with oil pump

 

[Berlin777]

the one I got is 80L/min

 

[white7proton]

Can you find me a link or the full name of your water aspirator please

 

[G.Patton]

I'm sure that you can work with any jet pump. Like this.

Also, read them, will be helpful.

http://bbzzzsvqcrqtki6umym6itiixfhni37ybtt7mkbjyxn2pgllzxf2qgyd.onion/en/threads/thevacuumguys-guide-to-building-a-multipurpose-vacuum-pump.13129/

http://bbzzzsvqcrqtki6umym6itiixfhni37ybtt7mkbjyxn2pgllzxf2qgyd.onion/en/threads/providing-and-application-of-vacuum-in-a-laboratory.813/

 

[dnBQByvHb8Zkawbjpx]

What solvent do you use? I would expect DCM vapor to chew through any plastic and rubber over time and a water aspirator (driven by a $20 12/24 VDC pump from Ali) would be better than anything else. Maybe with EA this is less of a concern but I'd definitely take the solvent (or other pumped gasses) into consideration.

 

[white7proton]

It's acetone that I use. I'll have look on Alibaba for a 12/24 VDC pump. Is that what I just need to search, what is VDC stand for?

 

[dnBQByvHb8Zkawbjpx]

V=voltage, DC=direct current

 

[Osmosis Vanderwaal]

I have a couple o 12-24v dc mini vacuum pumps and the dual stage one can draw down to about what a single stage rotary vane pump can do, max, but the volume is less (so it takes longer to draw down) an aspirator has more vacuum and volume potential, but you need running water (a submersible pump and a tank can work, but you'll be changing the water a lot) diaphram pumps are what you need. They are oiless and the rubber valves are resistant to most chemicals. Problem is they are low vacuum and low volume, in something under $500. A rotary vane pump, like a person uses for HVAC, all of the air you suck out of something goes right through the oil on its way out, and it doesn't take long to ruin it is your using something caustic like hcl. Vevor makes this neat contraption, it has a dual vacuum pump and a water pump that sits on top of a reservoir. Finally, there are actual chemistry vacuum pumps they cost $1000 and up. Theres also a claw vacuum pump, ii've never seen one in person but they work like a roots supercharger