Homemade silent air compressor
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- เผยแพร่เมื่อ 28 ส.ค. 2024
- This is my homemade air compressor using a refrigerator motor and a empty propane bottle :)
It charges up to 8bar even though i have it set to stop at 7bar, of course it is not a heavy duty compressor...but for small jobs it works fine ;p
Hay, give the man some credit.He did what he set out to do.Maybe not the prettiest weld but so what?
I like the idea of using an old propane bottle for an air pump. Maybe instead of using a stick welder, try using 90/10 silver solder, as it is less chance of warping or burning through the metal. Great video!!! Thanks for posting.
I bought a tank conversion kit from the local RV dealer here and they sold me an old outdated tank for $5-Works great!
I've built one myself and it works a treat for my garage tools and pressures up to 130 PSI.
I've read all the slagging comments you have given luis. These home build work a treat. And this works out at a 10th of the cost of a bought one. This saves me money and uses a 10th of the electric.
Also a tip with the oil. Drain out the oil through the suction tube and use an ink cartridge string and put in 1 litre of 10W 40 engine oil.
Andrew Wray :) yeah i have been using 15w40 engine oil, but mine only takes about 0,5l...but that dependes on the refrigerator motor size...some are bigger some are smaller...anyway...it surely works nice, and does all i require in my garage...most people that say it is useless...have never built one themselves..they just speak without knowing what they are talking about..lol
luisfilipe1983 email me on drewanywar@hotmail.co.uk and I'll send you pics of my compressor.
Andrew Wray ĺl..
hey guys, I've built one as well... been a few years now, works great!! Was not sure about the oil quantity, pretty sure i only have a small amount and has not effected the use. Use to keep it in my unheated shop, and in the very cold months it would not start... oil is too cold. Think the lower weight oils is the best for these compressors. For my tank i used an old makita 3gallon compressor everything was free but the pressure switch. Great for small jobs air brushing, tire filling etc.. Best part for me is the noise level. I also have a very old dental ritter compressor.. check them out on youtube.
Great job man!. Take the good and trash what its worthless. Lots of people go around the internet trying to lift up their self esteem by criticizing other people effort and creativity, while other like yourself, share their ideas and experiments. This world needs more of the latest. Keep up the good work.
Nice little project, I built similar but used an old 10l compressor tank.
Two bits of advice, fit a filter on the inlet pipe, I use a plastic fuel filter. Cover that pressure switch, you have live terminals exposed right next to your pressure tap, not a great move. Also make sure that earth strap also connects to the bottle ( so that was really 3 bits of advice). Thanks for posting.
Thanks for the advice :)
Great concept air compressor for airbrushing. This design runs as quiet as a diaphragm air compressor with a generous air capacity/supply for remote airbrushing.
Good work ! I made a compressor with a 100 lb propane tank with a compressor from the older model cars. nice work there !
try welding with 7014 rods, throw those 6011 rods away. Another hint: when you stop your bead chip off the slag before more welding. Make sure you have a pressure relief valve. I saw a compressor off a fridge blow the end out of a tank and take a wall with it. Thanks for showing this video. Be careful with any tank welding.
People are complaining about welding etc an uncleaned propane bottle. . . Yes cutting or welding a steel barrel is very dangerous if it isn't cleaned since it could explode. A propane cylinder is much thicker steel, and wouldn't have enough air in it do rip apart and cut you to shreds like a barrel.
Nice compressor!! I would love to have a silent one like this!! Keep the good work!
Thumbs up! - Great project man. Well done :-)
Your air compressor works very well!, you certainly put all those parts to good use making a very useful tool for your workshop.
Your compressor should be very handy for air brush painting and other similar air tools which don't require too much air.
P.S, Good effort on the welding, it held the air pressure nicely despite not looking pretty, More practice with moving your welding rod in a circular motion as you move along will get you a better, neater weld - but like you say, you cannot beat the finish of a Tig welder - Tig vs Arc, the Tig welder will always win hands down.
All the very best in all you do - keep on rocking man!
Good job kid, You are using your brain very well.
nice job. dont listen to negative feedback. I like the comment about welding more and practice. you needed more heat and slower travel speed. you did good and it works.
very good job 👍 but it's limited for small jobs, if you are mechanic like me you will need to make bigger air tank and bigger air compressor,
it's good that you started with small project and you completed it very well.
some people start big projects and can't completed it and through everything in the backyard
To anyone else attempting this fun project:
Some propane tanks contain a chemical additive to aid in detecting a propane leak. Its called ethanethiol / Ethyl or Methyl Mercaptan (CH3SH). This is also included (mandatory) in the liquid propane gas at the filling stations (at least in USA.)
If you are dead set on doing that project, rinse the tank with a quality dish de-greaser soap. This will get rid of that oily black tar-muck and residual smells from inside the tank.
(Certified propane handler. )
The only practical advantage of this build is that it's very quiet.
The disadvantages are numerous (I built a similar one years ago) :
Very slow to come to full pressure.
The delivered air is contaminated by the oil from the compressor & therefore an oil filter is needed, hence extra cost & bulk. Also you need to provide for adding oil to the compressor.
Not even suitable for blowing up a small car tire, due to lack of capacity.
The bits & pieces you need to make this will end up costing you almost as much as a low cost store bought compressor with about 5 times the capacity.
Peter Owens indeed it is suitable for small tasks only, and you need to fill oil every once in a while, and it is a slow charge...but with just one charge i can blow up the all 4 tires of a ford escort 1.8 diesel van, and about costs...it only cost me about 40€ in parts, everything else i had laying around...to buy one around here that would cost at least 80€ minimum.
Peter Owens bvsvv😬-----$- - bilemiyorum in mpj,chkiqgffd
+luisfilipe1983 bro dont explain yourself, you dont have to. you built it because you fucking wanted to, even if it serves no purpose what so ever. its a cool build that i never realized was possible. gonna save me a helll of a lot sincei only need for airbrush but has to be quiet for indoor use. anybody that wants to talk shit or question why, remind them that they are not forced to watch. i hate when people start nit picking shit. this is perfect for me and anyone else that needs a quiet small compressor.
a grinder with a wire wheel would do wonders!!! 7018 3/32 welding machine set at 90 amps perfect . clean a spot so you have a good ground and away you go. good luck in your next projects!!!
Bryan Dunlop thanks
Grande obra meu. Eu sei que tu es portugues. De onde es? Tu falas ingles muito bem. I really liked your video and your creativity. You are very resourseful and old school. This disposable world needs more people like you. Viva Portugal!!!!
This is not a bad idea; and it's probably a useful project, but the welding is completely un-necessary. You can put 1/8" pipe threads in a hole in the bottom of the tank; drain valves with 1/8" male threads are available from Auto Parts stores or large Hardware stores. The ideal way to make the hole is to drill 1/4" and then roll the metal inward with a tapered steel punch and hammer until it will clear a 5/16" drill bit. 5/16"; is the tap drill size for 1/8" pipe thread. You'll need to buy a 1/8" Pipe Tap. Because it's a tapered thread, just keep driving the tap in and checking until the valve you bought enters the threads with sufficient engagement; several turns; teflon tape is appropriate here. Cheers.
Looks like it should be vary useful for many small jobs,keep on going. Thanks..
Great video wish I had the parts laying around. A silent compressor would be great for the inside of the house, and welding practice practice practice . Hang in there...
if you fill the tank with water it will elimate the propane fumes, then you can weld of braze it.
really should have rinsed that tank then sand blasted everything before having a robotic welder weld that bung on inside a blast proof chamber preferably on the moon or some other remote location. also at least a pair of safety glasses and a full face shield, gloves, kevlar body armor, and at least one paramedic standing by- that's the minimum "safety" you should do even if you are just watching this video on youtube. i wont even operate my thermostat without a fire suit.
at least this guy got something done.
ya your doing pretty good and recycling parts into somthin usful those pumps will usually last years and years justkeep it drained rust thru on the thinner tank materiel good job
you should add another compressor to make it charge quicker but great job neat little compressor.
Recycle everything but, with respect to luisfilipe, May I observe. Refrigeration seal unit compressors are designed to pump gas and oil around the system. In domestic fridges there are no oil separators.
Using this type of compressor will result in oil passover, great if you are using air tools (keep an eye on the oil level) but using it to provide air to respray your car will be a disaster as the air will contain an oil mist despite the use of water separators and filters
Big industrial compressors solve this problem in many ways but small sealed units are a different matter.
I love recyclists and it's a good project and the welding will get better with practice
Thank for the upload
George Styer thanks ;)
TAKE CARE ! DON'T MESS WITH PROPANE ! Before You open the tank be sure no gas remained inside.... this should be done not just opening the valve !!!! A small amount of gas will remain insiede ready to explode. To completely empty the propane tank use WATER ! Fill the tank with water using a small rubber pipe. Once You fill it, the gas will be completely evacuated ! Don't skip this step !!!
With aircraft tanks, one can use steam, requiring less time to fully purge the propane (incl the gas that has 'soaked' into the very steel metal!) .. Maybe hours of high pressure steam, rather than days of flowing water .. Best to check the 'Aircraft Repair and Maintenance ' manuals ...from the FAA in USA.
DON'T MESS WITH TANKS NOT FULLY FULLY PURGED OF INFLAMMABLE MATERIALS!!!! EVEN IF YOU DO HAVE A 'SUICIDE WISH'..
Tkj Tkj
Well said.
Sorry, that's just plain wrong. Propane vaporizes at ambient pressure so it's physically impossible for any container to hold liquid propane at ambient pressure. As he said in the video, it has been sitting with the valve off for about 6 months. There is no such thing as residual propane except perhaps a bit of vapor immediately after removing the valve...which isn't the case here.
Introducing water into these tanks for any reason is a very bad idea because it will sit in the bottom of the tank and rust the steel from the inside out, reducing the tank's strength without any signs on the outside that it's been compromised.
I have made made many campstoves out of expired propane bottles and have never seen a flash from 'residual gas'.
"Introducing water into these tanks for any reason is a very bad idea because it will sit in the bottom of the tank and rust the steel..." Water WILL be introduced into the tank during the process of compressing air. Air compressor tanks must be drained on a regular basis (that's why they have drains on the bottom).
Compressor tanks are built with exactly that in mind, propane tanks are not. As a result, compressor tanks are built of heavier guage steel than propane tanks for the same working pressure. Compare the tare weights of the two to see the difference.
Additionally, all compressors have some blow-by which will eventually coat the inside of the tank with a film of oil. This is why spray rigs have separators to get oil (and of course water) out of the delivered air. Next time you drain your compressor, do so onto a piece of metal and check out the oily residue left behind after the water evaporates.
If you look at commercial installations (where longevity is key), you will see fins on the lines leading from the compressor head(s) to the tank. This is specifically to bleed off the heat of compression and reduce subsequent condensation once that hot air hits the cool or ambient tank (which is what you're referring to). You will also often see inline driers to remove humidity from the intake air. The biggest reason for draining compressor tanks regularly (along with the other measures I've mentioned) is to keep moisture out of the delivered air...NOT to keep the tank from rusting out.
Obviously, moisture becomes much more of an issue when one uses a much lighter LPG tank as a boost tank (as I'm doing with a 60 pounder)
But of course, all of that is entirely beside the point because there is no hazard of 'residual propane' to warrant putting water into the tank in the first place.
Defiantly not silent
ANY stick welder will do fine, just weld and watch videos on how to weld. it take experience.
decent attempt and i think you got it to work .
no one gives a shit about a silent air compressor for any shop use or construction. its about how much air you need to say nail a roof.
im glad your very hazardous experiment worked out and you did not get hurt. there could have been lots of ways you could have been hurt or even killed. NO ONE EVER TRY THIS THE WAY HE DID
well done man. great to see stuff repurposed.
thanks
You can fill the bottle with water to purge any possible flammable content, then dump the water out
congratulations, you made something useful out some junk. you have to be pride of yourself.
Thank you for your time to show us ! :)
good video, but remember to test the auto spring pressure activated valve and ensure it works in case the motor relay fails to stop at 95psi, I have a an old small compressor that failed its auto electrical stop relay without me realizing it, and the manual spring relief valve did its job well..it farted out the excess pressure build up!!!
you are all ass
Antes de soldar, o cortar o realizar algún tipo de mecanizado que pueda generar chispas y temperatura se debe llenar la garrafa de gas complemente con agua. Has tenido mucha suerte en no haber explotado. Saludos!
It looks like your welding skills are about like mine. I think I would have drilled a hole in the bottom of the tank and pushed a fitting with a gasket thru the larger hole in the top, and then screwed a nut onto the threads from the outside on the bottom. I cannot weld very well either.
Doug Sigea yep that might work
Water is a good purge, but just turning the bottle upside-down for an hour will do the trick (Propane and Butane are both heavier than air).
nice video man! keep up the creativity don't let those bad comment get to you. whatever get the job done! :)
thanks
I think, in daily life he is an office clerk. This is not welding but BAKING!
+Louis van Eijk whatever you think it is still working fine...
to be super safe fill the empty container several times with water empty it out and let it dry then you can be really sure there will be no traces of gas remaining. If you wish you can leave it for a few days with the water in it. Have fun safely. Alistair
Usually the freon or whatever refrigerant runs thru the compressor has oil mixed with it to aid lubrication. Right now I suspect you're running dry air or just air rather. This might kill your compressor a little sooner than usual
Jes,
the oil comes with the refrigerant, and now with the air.
Makes it run dry
The compressor has its own oil inside. The refrigerant is not the primary lubricant
No that's correct the refrigerant carries the lubricant around the system however oxygen will over time (I'm not an expert) monoxodize the giggling shaft of the compressor! But till then it's Happy Compressing!
Vikram Nayak
the compressor will be fine the oil in a fridge does not go around the system .
the oil is sprayed up in side the compressor lubricating it. so using it as a air compressor will be fine if he tops up the oil lost
You could just flush the oils and contaminants out of your reclaim Refrigerant tanks
love it .i was thinking of doing this before i got my compressor kinda wish i built my own now
Pretty ingenious. I liked your propane torch. Can you get higher temp gases on that? I wonder if it would have been easier to get the 3/4" tap and run a thread instead of welding it? Just thinking, not to criticize you. Thanks for vid.
If you can't weld, weld lots!
A grinder and paint makes me the welder I ain't
Ah no it does not. But keep practicing. Every time you weld you will get better and better. Plus have a look at weldingtipsandtricks youtube page. Excellent page and resource.
***** Couch Ave???
***** Ok Thanks
I agree, he can't weld worth a shit and he said if he had a tig welder he could do better. NO WAY. If you can't weld with stick Tig is a lot harder than stick weld. Even Mig he would do a lousy job.
You really need to invest in a mini grinder!! Pretty cool idea though! I like it because it is so quiet. What kind of torch is that? does it run on propane, or gas?? Never seen one like it in Canada.
if it takes 6 min to do the first welding, you must look @ a already made new compressor. stap one take a angle grinder en get rid of the paint.
Hello !
In reality you have said nothing
I had hoped to learn something from your great experience
People who know stuff can just watch and see what he did.
Hi luis
This sounds like a great project and a really useful one, and I know zero about what you intend but a silent air supply grabbed me. I am assuming at a pinch you can go and fill it as you might refill your tires? The good thing is most of this can be done with stores of stuff most men already have.
I look forward to watching the build, and have subbed you!
Take care
mrbluenun
Also, you sound soooooo fucking excited to be making this video!!
you fill them with water to eliminate the gas empty it and its guaranteed safe straight away, its probably best done outside ;-)
yes i did that outside ;)
Awesome video..thanks for posting :)
You are welcome
sorry now that i see what your trying to weld!!! you should be using 309 L 16 a stainless steel rod which allows you to weld stainles steel which is your fitting to mild steel which your propane tank is made out of. hope this helps. 3/32 set your welding machine to 70 amps.
Bryan Dunlop thank you
As gas is heavier-than-air. Removing the valve, and puttin the gas bottle upside down for a few days, all the gas should be gone. then a good rinse from a hose pipe, should remove any excess gas, left in the bottle
Yes, I too love my wire feel welder, but my angle grinder also saves me a lot of time.
The welder had a decent arc. You needed to Slow down, use 6010 rod, 1/8'". A mig welder would not have done better. Because it has the label as a dummy welder, it is not for dirty metal.
thanks
@@luisfilipe1983 yes, there was more metal to absorb the heat on the tank, so favor the arc to the tank side.
Never give up bro. that is cool
bottle can only handle 400 psi test pressure is not designed for greater working pressure 150 psi and pressure fittings are over welded to compensate for metal fatigue
I like that hand held torch you have. Any info on that would be helpful, would like one for myself.
Best way to get all the propane out is to fill it with water to displace all the gas.
yes i did that several times and then i left it for one or two days with a fan blowing air inside, and after that it stood sitting for about six months...only after that i built the compressor
If the metal was thick enough it might have been easier to drill and tap for the fitting rather than welding. Was the tank a 19kg propane cylinder?
+Atom izer good idea but there might be water residue left if you will just tap the fitting. It should be located at the deepest part i guess.
Very nice. Is form some condensation in that bottle like in a regular compressor?
some but not much
Holding that part in your one hand ungrounded like that and using the welder in the other is a bad idea and a easy way to get electrocuted.If I cant clamp something in place like the part you were working on I will sometimes braze it in place first,then tack weld and clean the brazing off.It adds a extra step but makes it easier in the long run.........Like you said with a different welder this would not be needed but at times when it is all you have it makes the job easier.
;)
It is hard to get electrocuted by a welder, the voltage is very low. (unless your welder was homemade by uncle grandpa) You would only feel it if you touch both wires to your tongue :P
@@southjerseysound7340 My goodness you talk some rubbish!!!
I dont know why most people show us how to Build this, without the most important part, which is for me the part in how one connects the Freg motor to the Compressor !!? :( I have made this, but If I turn it on and off during the load it just wont start again!!? I really dont know much about it and I havent been able to find a video to learn from it. I WISH YOU WOULD HAVE MADE SOME MORE OUT OF IT, AND SHOW US THE HOLL BUILD, But in the same time Thank's for sharing...:)
Why the nut on the bottom of the Gaz bottle ? I didn't see any hole !
I drilled the hole later, after having the nut in place, but did not manage to get it on camera
esta bem, obrigado
na boa :)
Thank you for the info, I want to try to develop it into a PCP pump. I have released the package, awaited a reply🙏👍
I welded an fridge compressor case with a stick welder and it's not leaking. I weld it once and that's it.. no leaks.
I was more interested in how you did the fittings. There's a T fitting coming from the tank, a one-way valve for the input and the other side is connected to the output (the pressure switch and regulator)?
+Bogdan Serban yes that is correct on the T fitting one side is IN through the one way valve and the other side is OUT through pressure switch and regulator
+luisfilipe1983 the one way valve has three connections, one goes to the tank, one from the motor and where does the other one go?
+Bogdan Serban the other one is the thinest one it goes to the bottom of the pressure switch to plug on a little valve wich is there to release pressure in the intake hose when full
I wouldn't like to hook my HVLP gun up to that! 14 CFM is a LOT of air throughput, ideal for blowing tyres up though :)
1 kids bike tire every 2 hours...
Its just a project that actually works.. it would work for inflating bike tires very well. Turn it on, do something else. Its called planning. It would also run airbrush and small paint sprayers.
Why do you need to purge it ? you are just compressing airdrop some dry ice in the tank for safety sake as it won't burn or allow the fuel to burn . and if you want the drain for draining water and oil , the tank is small enough to just turn it over and let it drain out the top valve
Good job... Keep practicing & improving your skills!
+LincTexPilot thanks
Well, damn, I'm impressed
Would have made a better weld if you would have just brazed it. Another thought was could you have just drilled and tapped it with NPT if the metal was thick enough to take the threads.
you could have made this video alllot more short and less boring...
4+ minutes to remove a little paint. Doesn't the man have an angle grinder?
You're not painting a car with this, the recovery time has got to be terrible and the paint wont wait.
MrBrymstond yeah, probably not...it will work only for small tasks.
Eu colocaria o motor em baixo do tanque de gas, a alimentação do ar gerado pelo motor de geladeira seria mais limpa com a ausência do respectivo óleo que há no motor. É preciso colocar um filtro na saída do ar. Fica muito bom.
Eu non sei nada de un motor de Geladeira no me gusto o video solo mirei os primeiros 3:29 minutos.
and also now that the compressor is pumping air instead of freon it will soon seize up unless u put an oiler on the intake side trust me.
You still keep oil in the compressor shell for lubrication. There should be a good air filter to keep dust out of the oil. Even if the compressor gives up the ghost, how hard is it to find another one?
dude!
Propane is heavier than air!....IF the bottle is empty,m the gas still remains in the cylinder.
Howerver, you turn it upside down , then the remaining gases would leave. :) Good work and theory!
Now, when you try to remove the painted substance at the bottom, why you not use drill with wire brush to
remove the paint? :)
cheers!
OK, air from fridge motor contains traces of condensed *water*.
Water + air + internal walls of propane bottle = *rust*.
Rust in propane bottle = *weakening* of the walls.
Weakening of the walls + air pressure = *EXPLOSION HAZARD*.
+Nasrani MinAlGharb Every Air Compressor accumulates water on the inside as a result of the surrounding humidity, this is why most compressors have purge valve on the bottom to allow for periodic draining. You're absolutely right though, evetually, over quite some time the walls we become too weak for the pressure, but after a very, very long time.
*****
The thing is, tanks made specifically for air compressors are either stainless or lined or painted with waterproof material on the inside. Propane bottles are made to store dry compressed propane and so may not be waterproofed on the inside.
Huh. that makes perfect sense. Didn't think about that!
This is a good job. But for welding u should have your wife helping turning the tank slowly. This kind of job is very difficult for stick machine but not if u have a MIG machine. Another thing is this kind of compressor have low start torque u. U will have a start problem should the compressor starts with a lot of pressure still be in the tank.
you should rinse out with water first, then fill up with water to make anycuts. people die from cutting into "empty" tanks, or barrel
To be sure that all the propane is gone fill the bottle with water.
nice work! I was thinking to use a refrigerator motor as air compressor too. But in your project, I saw that it charges too slow; it may not coupe with the amount of air discharge my tools will need. Do you have a plan on how to make the charging or increase the pressure faster?
Don’t blame the welding machine and stick machine can be modified to TIG so that’s no excuse either.
can you make a video on how to calibrate a presostat on a water pump?
boas Luis, qual quer motor de frigorifico dá para fazer um compressor desses? ou tem que ter alguma especificação para o nº de bares a obter?
bom trabalho :)
Wilko Inaka boas, eu não segui especificação nenhuma, á partida qualquer motor desde que trabalhe serve.
Value pela dica. E por compartir! Tudo de bom.
Very good video,, thanks for sharing i have a question, what is the maximum pressure for y that specific propane tank???? 120 psi or more,, thumbs up dude!!!
At 6:26 in this video th-cam.com/video/rLPbSUvyPcg/w-d-xo.html&feature=gp-n-y&google_comment_id=z122hpmhgpirctsx204chx2oeuuuhdfieig i show the maximum pressure of the bottle
WELL THANK YOU,, I WATCH THE VIDEO AND THE BOTTLE HAVE 30 BAR,,, THATS MEANS 435.113 PSI "GOOGLE SAY" HAHAHAH
LAWRENCE / L-JETRONIC
cool project
Nice job son!!
+Stavros Athas thanks
When welding if you do e's or u motions in the molten puddle your welds will start to look professional, unlike stuff you have done. Better still buy a mig.
Hope it holds compressed air. Nice wheels.
ok thanks for the advice..it holds compressed air easily :)
bet this would work great with r12 compressors but the new 134 compressors with poe will surely fail as poe is hydroscopic and they make stuff cheaper all the time
Great Job !!!!!
Good Job, but Cheaper if you get it Brand New. If you count the Time Labor, Parts and Etc.... Cheaper to get one that is Brand New :) Unless you are planning to make one that is like 100 Liter or more :)
i was more interested to see if it exploded, whats the pressure rating on a propane tank!
This type of compressor was designed to operate in a close loop containing small amounts of recirculated oil. It will not last long running dry. :/
Shpuldnt weld a pressure vessle but a 7024 rod would have gave you a very smooth good looking weld
Should have used a cola bottle at these pressures, tap out the cap and swap the bottle every once in a while lol
remember these little compressors can put lut a lot more pressure. I have seen pressures near 300 psi on a rooftoop A/C in the summer sun....
i have a feeling that compressor wont run for a very long time without the oil that is normally in the ac refrigerant system
and use a hydrogen controlled welding rod 4814 , 4816, 4818 zero porosity one continuous weld 're pressure test using water and old hydraulic hand pump it holds its good don't test with air
thanks
next time when you want to safely remove all the gas from a gas can poor water in it. do not assume that letting that open for 2 weeks will end up with no gas in it. if was propane that might work because it is slight less dense than air but is no a guarantee. if it is GPL / PGL that is more dense than air a small surprise can occure when sparks are introduced in the mix. better to be safe than sorry. nice dirt bikes in the back to be tinker with.
All LPG including propane, is heavier than air.
+Shaun Dobbie my bad, you are right about it.
compressed natural gas, the preferred fuel for boat stoves and heating is lighter than air.
that's scary..6Bar? im not sure how much Bar that propane tank can handle the pressure. and the welded spot? that might burst at anytime.
jes he is an terrible welder would not hire him
Doesnt matter if you read in bars or psi... as long as that dial shuts the compressor off at less than 145 psi, to play on the safe side, all is good:
"According to the publication NFPA58, a tank with 20 pounds of gas at 70°F would have a pressure of 145 psi, at 90°F would have 180 psi, at 105°F would have 235 psi, and at 130°F would have 315 psi."