PVC

[Gray Wolf]

damn.. well.. im making oil for a friend of a friend who has 30+pounds of outdoor popcorn nugs and sugar trim. i get half of what i make. I did however buy the case of vector butane so I dont want to waste the butane. Wasting some herb isnt to big of a deal

if you were in my shoes would you run an ABS pipe, 2 feet in length and 1 1/2 dia? or would you split the ABS pipe in half and make 2?

(just in case... I will never EVER use pvc..again)

ABS is rated as good in butane service, with light corrosion and color change, while PVC is rated as only fair. Polypropylene on the other hand is rated as excellent!

I want neither in my meds, and stainless or glass are easier to find than Polypropylene, so that is what I use.

 

[gtgio]

glass much cheapa than yo health insurance, mon.

Hahaha,
This.

I would assume PVC be fine for a one-time run but if you're planning to use the same setup for multiple runs glass would be a better investment.

 

[midwestHIGHS]

jeeeeez people in this thread just dont want to listen !!

this thread gives me a headache

 

[jump117]

ABS is rated as good in butane service, with light corrosion and color change, while PVC is rated as only fair. Polypropylene on the other hand is rated as excellent!

What is the rate of PET?

 

[Gray Wolf]

Hahaha,
This.

I would assume PVC be fine for a one-time run but if you're planning to use the same setup for multiple runs glass would be a better investment.

Solly, the information I have says only that PVC softens in butane service and doesn't spell out how logarithmic the leaching occurs.

Not being a chemical engineer, my best guess is the greatest rate of leaching will occur when the concentration of the molecules to be leached is highest. Under that wild ass guess, the first time would be the worst!

Any chemical engineering brothers out there to share your insight?

 

[Gray Wolf]

What is the rate of PET?

Alas, Polyester isn't listed on any of my industrial charts and the polyester charts that I can find, don't list butane.

Polyester is listed as resistant to naphtha below 60C, but not recommended above that.

 

[eloquentsoution]

jeeeeez people in this thread just dont want to listen !!

this thread gives me a headache

this is worth repeating.

 

[mad librettist]

lol I am feeling anal today. i'm sick as a dog and I just have to say:

to WHOM it may concern: "who" is for when the person is the subject of the sentence. "whom" is for direct and indirect objects only. "To whom" and "for whom", but "the person whom" is just wrong!


I'm not a chemical engineer and know shit-all about butane and pvc, but I know grammar dammit!


/end fever induced rant

 

[Macola]

I am curious to see actual lab test results of BHO made with pvc. anything else is just speculation. Does anyone know if PVC contaminants would show up on a BHO lab test? if not then this will be a hard question to answer. There is a lab near me that does liquid chromatography

This would be really interesting to see although the issue is complex. Duration of contact (direct duration and via multiple usages), type of PVC, additives, ...

I think LC-MS would show everything on the spectra but I'm not sure how hard is it to identify these compounds. I'll look for some papers but direct usage (i.e. for BHO) test would give the most accurate answer in my opinion.

 

[Anti]

I standardized on 1" diameter and my longest glass one was 36", which costs $10, plus $1 per foot of length to have made in heavy wall borosilicate. That's $46 per tube.

Do you happen to have a link to a place where you can get these?

I've been searching google/amazon/etc. for the last 20 minutes and I can find tons of borosilicate tubes (up to 4 feet in length) but I can't find any that have ID of more than 22mm (just under an inch) for less than $60 or so.

 

[Hashmasta-Kut]

I once had a couple 4ft long x 1.5inch diameter glass tubes. It was easy to stuff a half-pound of material in each tube, and with 2 tubes and two people blowing tane simultaneously into the same pyrex we could process one pound of material per run. I once made 9 ounces of BHO in one day with this method.

but those glass tubes cracked eventually and broke... They cost $100 each, and were custom-made, not easy to find. Another option is using steel or aluminum tubes, but these are also harder to find.

actually, glassblowers raw material comes in 5 foot lengths, so your problem is instantly solved, if you can find a capping method for both ends. you can just buy a few pieces of 32mm(OD) x4mm(thickness), and go to town. they are probably about 20 dollars each. if you buy a case of 16, they are about 15 dollars each, if not less.

 

[Gray Wolf]

Do you happen to have a link to a place where you can get these?

I've been searching google/amazon/etc. for the last 20 minutes and I can find tons of borosilicate tubes (up to 4 feet in length) but I can't find any that have ID of more than 22mm (just under an inch) for less than $60 or so.

We have them made at a local scientific glass shop in lots of 10.

Check your PMs.

 

[Shcrews]

jeeeeez people in this thread just dont want to listen !!

this thread gives me a headache

i disagree completely, this is a very informative thread. you should relax.

 

[Shcrews]

actually, glassblowers raw material comes in 5 foot lengths, so your problem is instantly solved, if you can find a capping method for both ends. you can just buy a few pieces of 32mm(OD) x4mm(thickness), and go to town. they are probably about 20 dollars each. if you buy a case of 16, they are about 15 dollars each, if not less.

good advice Kut! i will ask around. I would want 50mm OD glass tubing, preferably with 5mm walls. 4 foot long is ideal, as i am not tall, but 5 foot would work too.

 

[Gray Wolf]

I would want 50mm OD glass tubing, preferably with 5mm walls.

1.9685 inch diameter seems a tad large for an efficient single pass column. Are you using it as a single pass column and if so, is there a reason that you require one that large?

 

[Shcrews]

1.9685 inch diameter seems a tad large for an efficient single pass column. Are you using it as a single pass column and if so, is there a reason that you require one that large?

yes, single pass.. 50mm OD with 5mm wall thickness gives an inside diameter of 40mm, about 1.5 inches.

a 4 foot long tube with these dimensions holds approx 225g of trim.. I have yielded up to 42 grams of BHO per tube, 30g on average... i think that is efficient.

the only problem is getting the frozen trim out afterwards.

 

[Hashmasta-Kut]

good advice Kut! i will ask around. I would want 50mm OD glass tubing, preferably with 5mm walls. 4 foot long is ideal, as i am not tall, but 5 foot would work too.

50mm by 5mm is a common size, it comes in 5 foot lengths, but isnt really that easy to shorten without a glassblowing torch.


for getting trim out, do it right after the extraction, it comes out easiest then.

 

[Shcrews]

50mm by 5mm is a common size, it comes in 5 foot lengths, but isnt really that easy to shorten without a glassblowing torch.


for getting trim out, do it right after the extraction, it comes out easiest then.

makes sense, all my roor tubes are 50mm by 5mm

any other tips on how to get the material out?

 

[Gray Wolf]

yes, single pass.. 50mm OD with 5mm wall thickness gives an inside diameter of 40mm, about 1.5 inches.

a 4 foot long tube with these dimensions holds approx 225g of trim.. I have yielded up to 42 grams of BHO per tube, 30g on average... i think that is efficient.

the only problem is getting the frozen trim out afterwards.

As long as you are satisfied bro. Thats 13.3% average and 18.6% best yield.

A lot depends on what you are running, but my bud average using a 1" single pass column is around 18% and my best yield was 21.6%.

Best yield on the same general strains is 23.7% in my butane extraction and reclaim system, so the 1" column isn't too far off.

On long columns, I use an electric drill, with a 5' flexible electrician's drill bit to clear the columns, or a dowel that I have duct taped a wire spiral, wound from a coat hanger.

 

[Gray Wolf]

for getting trim out, do it right after the extraction, it comes out easiest then.

Key point!