Tag me in the 6 liters an hour on your new setup too, I looked for it and couldnt find it
Done. I posted many more but I tagged you in one. I have more videos on a camera I’ll soft through that’s not on my telle. Come by I’m.mlre than happy to show you. You can see with your own eyes.
I am not sharing the spd7 uspd out of respect to my early adopters and people who made those sops. They have asked me not to share thier videos. So I will respect that.
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K tagged you. So was I lieing.
I guess not.
How do you know thats 6 liters an hour? I’ve heard the inner diameter of the HB1 or HB 2 is a 60 50 (not including the jacket) my homie has a 55 50 of yours and can only hit 2.5 liters an hour, seems like double the output for a slightly bigger joint size. That’s with a dif and turbo too, I’m genuinely curious. Isnt the HB1 and 2 a cbd head? Thought I saw someone saying that.
Spd4 mpd Bertha is CBD and does 4-6 a hour.
Spd4 mpd hb1 and hb2 are high speed heads designed for low vacuum. One is super selective. One is high refinement low vacuum high speed. It’s sorta a toss up how they are used.
All mpd heads are 100mm. The inside bore varries what head you use. Some have stepped dual pathway. Some dont.
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So the hb1 is pretty much a fast pass nano head kinda and the hb2 is for 2nd pass high purity?
Do you think the hb1/2 is faster then your new sideways system (the one with the head coming out the side)?
The I hooked the rotary vane and diffusion up to both the spd and the word film. Both were acheiving the same ultimate vacuum. Does that mean my vacuum line has a leak or something?
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Sounds like you might need to change your oil, or your decarb/deterp sop. Check ultimate vacuum on your diff pump and on your vacuum pump, if you hook your guage directly to the pump and its above your ultimate vac I’d change your oil ( I always know what my pump pulls down to dry so I can check to see how well its functioning)
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“Also the pressure is bias to the movement of molecules. Wipers have more joints and more leaks but have less fluid on them. That’s why your vac dips.” Wipers have more leaks IF their joints are leaking. Why compare a leaky WFE to a non leaky SPD? Doesnt make sense. If nothing is leaking, WFE will run at a deeper vacuum then an SPD will. You contradict ur self too much my friend.
WFE are made of glass too?
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He actually might be right about the ultimate vac being deeper on glass then on steel, if a wiper uses o rings it will not hold vac as good as glass on glass. Idk what the VTA uses tbh. I’ve seen this happen on overhead stirrers designed for spd use. They cant go over like 600 rpms without losing vacuum.
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My glass wiper uses orings
They usually leak sub 1 microns, if you’re using a diff and are at 130 microns somethings wrong.
so I’ve said this many times that different people have different tools and or some people have many different tools for different jobs.
HB1 head is a stripped version of the original Bertha basically it’s a fraction collector at the top with a small section in between that has a rejection section under it and that goes straight down but there’s no baffles and there’s no other portions inside for high refinement. HB1 head has a ball on the bottom with a little hole at the bottom and four large holes around it Wich was Hobbs version of another head he had drawn up and we worked together to merge our ideas efficiently. this happened to push things down so it touches this plane of mass at the lower section and the more excited molecules will just travel through the top the, dirty ones of those molecules will hit the rejection section. All the rest will try and travel to the top of the collector. I would say the HB1 head from my customers comments is really really good at pushing azulene out and keeping THC back with great thermal and temperature controll. I also heard people use the Hb1 head for that fast first pass where there’s nearly no objective selectivity.
The HB2 head is basically like a huge key in the center that is vacuum evacuated so it does not have thermal losses throughout the bottom or top. The HB2 head has a built-in baffle section that is staggered to mimic the baffle key. These don’t use big sections. This also sort of has a very similar Bertha like effect where the head protrudes into the flask. This is a method of retaining heat and temperature so the core doesn’t lose energy It actually drags the heat upwards. For my customers processes they have mentioned that the HP head is specifically good for ultra low temperatures really high output and high refinement. Some have HB1 machines running non-stop in the background doing first pass cuts. other people will have a couple of HB2 sitting to do all the refinements after they do their water washes which comes after that first pass.
have seen these heads being used interchangeably in different processes the each have a characteristic to how they distill and that is the important part that is a tool to the process.
I am now learning the spd7s are being used for first pass and a lot of the customers are using them are not telling me except I’m pretty sure it just has to do with high pre-processing steps including short bed chroma passes which are not like real flash chromatography. The head is actually built into the flask on the spd7 It goes inside of it and it sits about two or so maybe three inches above the surface. character and process of how that head operates is very very different and requires a completely different understanding of how the molecules go through the system because if not used properly you’ll just load the pumps up with solvent and vapor. perticularly spd7 since iis less selective towards the objective distillation vapor pressures it will actually require that you don’t just put straight green material in there. wanted to be somewhat refined or even just a really high-end initial starting product. I have another customer who is using the spd7 to pull terps out of his batches because of how low the temps are and how it performs thermally with molecules identical to a wiped film but with more pressure. every piece of glass I have is a tool for a job that can be interchanged. most likely The future is probably going to be with SPD 7 We have to get everyone operating on dry vacuum and with large vacuum arrays to be able to absorb this type of boil off. but to compare them is very difficult because each one kind of does something different
Also spd7 really requires every sensors and bell and whistle to see what’s happening with accuracy. However it is a very accurate machine.
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Also a cool features on all of the MPD heads that we make now come with a vapor bar installed in the condenser and no one really knows about this because we don’t really advertise it but it’s a really cool addition
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Do you mind explaining what that bar does? I saw that and was wondering what it for. Couldnt even come up with any kind of idea as to what it does.
That’s an issue with the cheap rotary joints they use. Ferrofluid rotary joints can hold Incredibly deep vacuum
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Looks like I need to hook the diffstak 250 up to the VTA for some testing!
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Used to convert a vapor phase to a liquid closer to the heated section so you capture more what you want and don’t get blow by. It’s for high speed setups.
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This is terrible advice. Yes you can burn the diffusion oil if air leaks in while it’s hot. The manuals warn of it and it personally happened to me. Used to hold less than 0.1 micron on wiped film, after that scorching could never get it under 0.5
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