40 bucks for a filter bag? You mean 4?
Bad selection. I will show you the one I used in a sec. I got them for $3.70 a bag. You’re right, if you paid 36 per bag, it wouldn’t be a very good deal.
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Go look on my IG I show my filtration all the time. Bro people use filter presses all the time in many different industries. Look at the wine industry. A filter press is a 2d filter. Idk why you have to be right, all I’m saying is your math on your bag filters is way off, especially if you use silica with a buchner.
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I didn’t do any off math. Those numbers came from the manufacturer and take all the layers into account. Yes, you’re right, if you use celite, then the surface area calculation for a buchner is also invalid. But my numbers, for a bare bag vs bare paper, are correct, at least for that specific bag (they are all layered differently).
Here is a more applicable bag I would recommend. I know it says $10, but if you get it direct from manufacturer it will less than half that. I actually order my bags from Rosedale not through mcmaster. I only get the housings from mcmaster.
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i just checked your instagram. You’re right, doing 16 gallons in 8 minutes is nothing to sneeze at. I still think that my size 2 is faster, but you seem to be maintaining a pretty brisk pace. You did mention though that the first pass only get’s 80% of the wax. One nice thing about the bags is you can stage them so instead of having to take your permeate and run it through a 2nd buchner pass, you could just stage 2 different micron bags and get both passes done at the same time. I actually always get all the wax out with just the first bag. The 2nd one is just for any carbon/clay I used.
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You can get all the carbon and clay out with just a bag? I thought you had to use a cartridge type filter to get all that crap out. You using just a 1 micron bag? The staging of the filter bags is one thing that would be huge when scaling, especially if you’re doing 100s or 1000s of gallons an hour.
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No, I use a cartridge, sorry. I misspoke. I stage one bag for all the fats, then a cartridge for carbon/clay. The cartridge is like $50, but they will last weeks without changing them.
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Can you link the cartridge you use? I’m interested now lol
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I got these, in 0.2 micron:
I go them through a third party not sure what price manufacturer quotes.
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That’s what I use. It’s painfully slow
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Pressurized filtration is the future. Haven’t gotten to use one yet but probably gonna use vac powered normal homchstrom for winterization and then pressureized for my AC and DE color remediation cause that shit can get slow. Winterization be carbon scrub have different needs for speed
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Pressurized filtration is alot less accurate than vacuum. Two different principles how stuff is filtered. There is a spot for all kinds of filtering.
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My current 3x 600ml buchner setups cant be any slower than 1x 3000ml.
Should have stepped it up and bought a neutsch (sp).
Mine is 2L i believe it’s 150mm diameter. What is the diameter of your buchner
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178mm
It might be a little quicker but I hate to say probably not much. I am ditching the glass buchner soon probably for a 12" or maybe a sock filter housing
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The link you posted months ago, looks nice. Just need to unload this glass before.
you got any references you can point to on that?
they look essentially identical to me.
[if you use the right zero point for your gauge, they ARE identical…]
major difference being that with vac the max pressure differential is 15PSI.
although it’s much harder to accidentally boil off your solvent when using +ve pressure.
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