I thought hydrocarbons required bolt-on high pressure clamps for every run nmw to miminalize the possibility of leaks. I thought only ethanol could be ran with regular sanitary clamps…
And two high pressure clamps for them. Or maybe if in the future op wanted to put a stopper on the recovery line and only keep one sightglass and have the other one a triclamp to ½" npt for a larger recovery orafice…
I like the design very modular but I’m just anal about safety and ig my preference is to use bolt-ons all around and not even risk anything.
Your local fire Marshall may prefer that you use high pressure clamps everywhere but if you’re not in a compliant lab then that doesn’t even matter.
The pressure rating of that single bolt clamp for a flange of that size is 10x the pressure you would reach in a butane rig. It’s definitely safe to use.
@Franklin is correct that pressure is not an issue with those size clamps. However they do stretch and wear out easier and should be replaced as necessary.
That inline sight glass is the weakest point of the system as far as pressure goes. If anything I’d be more concerned about the larger clamp that’s also supporting the weight of the column on that stand up system. I wouldn’t recommend using hinged clamps on a stand up system in general.
Also high pressure clamps are pretty cheap in that size. Do you prefer the convenience over something that will last longer?
yeah. to pull a vac on the tank means you have empty tanks and a safe way to vac a tank. I have an aspirator but only use it on a complete refill and not pulling vac run by run. but if you just open it while cold itll have zero pressure and be like zero psi on recovery while cold. im using carbon refrigerant tank like op/
how did a recovery tank become empty enough to vac? Im cheap so have an aspirator. my vac pump cant do hydrocarbons. other than dilluted ones like oil and thats prolly not even safe with my pump my trs is rated for hydrocarbons but i dont use it as a vc pump.
My tank is never empty so I dont know just curious why he said only a rotary vane pump if its empty. Best is to have another vessel under vac and use that if theres gas in it. Diaphragm pumps work just fine especially empty you could use a turbo molecular if you want too.
to me the time saved by pulling a vac on recovery tanks isnt worth the butane. I have no idea how much weight in butane it is but tanks always have pressure in ambient temps and it seems wasteful to offgas it all and pull vac to save a couple minutes.
I only vac my tank once or twice every 1-2 months when I transfer the 100#’s to the rest of the system and clean it. Every other day its a constantly running system, i also dont use nitrogen so i have no need. It can run 24/7 365 days a yr and never shut it off, just gotta change columns and everything is sectioned off so i can run 1 column 4 columns or all 12 at once or just the honey pot etc.
i run a carbon tank and cant clean it. but yeah i pull vac when doing a full refill/ I keep investing in this thing but need to invest more into a stainless tank. I dont like the idea of triclamp and storage but I guess you all do it. I wont use propane mix, i guess i may trust it with just butane.
its funny to me that you all are safety nazis yet you store huge tanks of butane in non asme containers. why arent stainless tanks dot certified? because they arent safe DUH I even saw people on here trying to use a keg with hydrocarbons. that isnt right.
I thumped because i did. It was about the tanks, hes using a carbon tank and ive been told its wrong due to rust. but you saw my mental wraparound, I dont trust triclamp with storage. Neither does the dot to transport.
its pressure rated to like 150 a regular tank is to 600 right? beer keg pressure rating - Google Search
bad guage on my nitro tank could explode it easily. its one thing if if breaks a keg in the back of a bar, another thing if its 20 lbs of hydrocarbons on the floor. In general arent the kegs for ethanol? Im cheap and dont see rust in my tank yet but keep hearing i should have a stainless tank? I just went back to butane and am less scared of pressures.
Like hell it doesn’t.