its only me here and we do a lot of business… I only use the forum when im sitting here getting high talking shit! The rest of the time im spending with my family and running a pretty large business.
thats another benefit to me though… you know where you can find me hourly or every other hour… Your emails are taken care of almost instant… what company owner gives you that much access??
i do what killa said to do maybe have him leave the material columns gauge and valves separate so he can practice putting the parts together so that they don’t leak and he will be able to pressure test afterwards too. m
i got my first system from @Killa12345 and pressure tested everything except the diamond miner. i was impatient told him i would put it together my self and pressure test it to make sure i did it right. he cut the price on the miner that it was practically free with my order. the diamond miner did a better job teaching me how to pressure test and find liked, rather than making diamonds.
Sorry, I was headed out the door, so limited my input to asking for your details.
As originator of the basic Terpenator, Lil Terp designs under consideration, who got those designs third party certified to ASME Section VIII, I have some insights to share whether you have require a licensed facility or not.
The first decision is whether the system must be certifiable or not, and if so who pays for the certification. It is typically cheaper of the manufacturer supplies those certifications, than if you pay for them yourself.
I got the basic Mk III through Mk V ASME certs done relatively cheap bartering in the good ole boy network with a local ME PE, but it cost me $12K to get the Mk IVC and VC third party PE certified in five states to meet ASME, NFPA NEC, and IBC requirements for an installation.
If certifications are required, then ask for them up front, because it is way cheaper of supplied by the manufacturer.
If you have to determine from just the components themselves, ASME Section 8 was developed for a reason and divides piping and fitting 6” and below as pressure piping, and above as pressure vessels when they will operate above one atmosphere (14.7 psi) pressure.
Requirements for LPG pressure piping is 350 psi, and for pressure vessels, 3X the highest pressure the system may see, which ostensible includes system cooling failure.
70:30 is a common mix and a good example. Look at the attached chart to determine what pressure ranges you might be operating in:
See chart below.
The following is the pressure rating of the different sanitary clamps, which are the limiting factor in most systems: Rather than just look at the package offered, may I suggest that you look at the components used?
If you are building and testing our own, when I worked at an ASME fabricating shop, we hydrotested our products to certify them and fully flooded them and brought the pressure up using a Sprague hydrostatic pump, with no compress gases involved.
If we are operating a certified system that is at least 3X stronger than the pressure we are testing it to, and are just looking for leaks, we don’t have to hydrostatically test it, we can simply use air. If you doubt its capabilities, hydrostatically test it first and then with air so you can see the bubbles.
That doesn’t mean we stand in harms way when doing so. We tested our units in a plastic barrel full of water, but only went to 100 psi looking for leaks. We also stood beside it, with it tilted away from us, not over it.
As noted, compressed air rebounds like a big spring when released and at 100 psi is compressed air looking to occupy about 6.7 times more space. In pressure testing a sanitary assembly, the clamps are the weak link, so failures will launch the components vertically from a barrel.
As far as features, above the basic Terpenator/Lil Terp design, there are a couple of schools of thought on chilling the column, chilling the injected LPG, or chilling them both.
The column are typically chilled with a dry ice alcohol slurry in a column jacket, and the injected LPG is can be cooled in the storage tank and dropped further using a coil in a dry ice bath or LN2 counter flow heat exchanger between the storage tank and the column.
I prefer both, but only chilled the columns to -18C/0F before hand and chilled the injected LPG using either dry ice or LN2.
ASME also requires a PRV valve set at 130% of test pressure, also a good idea.
Some evolution since the original design. We discovered that it was handy to be able to watch what was going on in the recovery tank, so we added view ports. Check the pressure ratings of the view ports offered, as they should be at least 350 psi to meet ASME.
We also used modified flat lids on the original design, which attempts to become hemispherical under pressure, lifting the edges off the gaskets, so moved to lids that start out hemispherical and deform less, so are less prone to leaks.
I realize this post is a little like taking a sip from a firehose, but feel fee to ask questions, as well as submit what you have decided on for discussion!
Every valve has failed, every gasket was dry and needed replacement before the first use. Other than that, the steel has been a very non-porous membrane. The 12” clamp on the collection vessel is keeping me awake at night. I need to address a new collection vessel as soon as the budget allows.
Are you a cop or a fed or something? Don’t you have anything other than negative criticism to offer. I’ve looked through a bunch of your post and you are just a pain in the ass most of the time.
You aren’t in my state, you don’t know me, you don’t know my situation or my world. You don’t know what you’re talking about and I don’t give two shits about your opinion. You have no skin in this game. Go pound sand.
It’s not ASME. It’s going to be in the 13MHP 2 bolt column. That’s why it has bothered me. Even during pressure tests before runs at 90 psi, I feel like I’m pushing it. I appreciate getting replies from you. You’re one of my heros.
I’ve designed almost 2 dozen labs and designed certified equipment for bhogart, precision, sweet leaf, iron fist and Mach
I honestly could care less about you, but we all know you have some hourly guys working on that machine.
Go check out Apollo dabs and ask yourself if you are prepared to do that to someone. You don’t have certs so even if you have insurance it won’t cover. Do you even have your guys on a W2 and have workers comp?
Keep acting glib like you are an expert. Hopefully it doesn’t end up hurting some poor kid dumb enough to think you know what you are doing.
You are unsafe and want to justify it by you not wanting government control on you. You sound like some anti vaxxer
You are new at this obviously and you are thinking you know better than regulating agencies. That’s a recipe for disaster.
I hope your state forces you to see the folly of your ways before it’s too late.
Keep finding answered that justify your dunninger kuger bias and keep ignoring others that have mad their living by designing certified equipment and licensed labs.
You sound like a spoiled rotten snowflake that has to win every argument. You’re so busy telling me how smart you are and how qualified you are. Like I would give two shits. You’re pathetic. I don’t care if you built the freaking Taj Mahal and went the moon with Buz Aldrin. I think you’re a tiny little person that has to flex his tiny little muscles on forums. You make me sick. Stay off my posts. If you feel the need to comment, just know I think you are stupid, irrelevant and meaningless to my world. Your opinions, input or ideas are rejected by me and I have no use for you. So, before you waste your time in reply, know it means nothing, absolutely nothing, to me and will not change anything in my life.