vacuume pump

[bmass]

what do i need vacuume pump,reciver flask and what more?this pump on the pic and the filter is that it?

 

[GymLift]

I think there is a bottle top filtration sticky, but what you need is:

- Vaccum like the one shown (I got that exact same one from Pep Boys for ~$45 I think)
- Bottle-top filter (I use Naglene brand)
- Receiver flask with opening size that is the same as the bottle top filter (I purchased 45mm, but 33m is very common). Get a glass receiver flask! The plastic ones aren't rated for hardly any pressure, can easily crack, and just plain won't last as long.

 

[bmass]

ok thanks, and the glass fiber prefilter what are they used for?is it if i want to reuse a stericup filter so i just change to a new filter?

 

[bmass]

Whats the difference between PVDF filters and PES?
can you use these filters again just by changing the membrane or not?

 

[GymLift]

I've always seem people use disposible bottle-top filters. I don't know much about the reusable bottle top filters with changable filter membranes, but from the little I have seen the changable filters were glass and had too big of a pore size for our uses.

PVDF and PES are two different materials that are often used to make the member filters. There are others as well, but I see PVDF and PES types used in our field most often.

If you go to Daigger.com, change the search type to Daigger Part #, and type in product number EF4867D, then you will be able to find the bottle top filter type that I use. I get 45mm glass media bottles (performs the receiver flask function) from researchsupply.net.