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Diy air tanks for compressor

kazlx

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Of course I am about speed and economy,,,, most anyone can do it if they throw enough time and money at it. Part of the art is the speed.

Except all your comments are basically about half-assing everything and criticizing people that don't or go above and beyond because they want to. It doesn't take long to just figure out to ignore your posts and semi-coherent ramblings. You always seem to criticize the people here that actually know WTF they are talking about. His prep and weld pics are leagues above anything I've ever seen posted by you.

On a side note. Killer job Z. Sorry to drag down your thread.
 
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sberry

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It's about a practical way for those who care. It's not for pros who know what they want. I am not saying not to do well but there is a point where it's adequate. Some welders are better than others but the ones that pass pass . You can go beyond that but someone set a standard. If a part timer comes along wanting his first socket set do we insist the only thing will possibly work is a snap and sell it with the idea anything else will surely end up in a busted knuckle and strip every bolt it's used on? Is that helpful or accurate?
I tend to jump in on guestions,, is it good enough, will it run the tool? Will it last to get the work done. I could be a fan boy and have a simple answer,, snap for everything,, one answer every question.
 

sberry

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Just out of curiosity what's the safe working pressure of this fully welded? But,, it probably is better than anything I have posted and I am not critical of it. How is saying it's 3 x better than it needs to be criticizing it? It's just a fact, nothing more, it's not good or bad. What I criticize is the instance it has to be that good cause it can be. You can use a wire or pipe 2 or 3 sizes bigger than needed but it doesn't make it and safer or work better. This got nothing to do with the op and his workmanship. If I was on a nuke or doing steam would do it the same way.
 
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matt_i

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This is great stuff! I am curious where you sourced the main pipe & endcaps from...not that I need to know the exact place but what do you spec out to get the original set of parts?

The proof testing (hydro test) as you outline should remove all variability & risk :)
 
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Z

z-edition 006

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This is great stuff! I am curious where you sourced the main pipe & endcaps from...not that I need to know the exact place but what do you spec out to get the original set of parts?

The proof testing (hydro test) as you outline should remove all variability & risk :)

I got the main pipes and endcaps from a steel supplier near me.

I didn't want to go bigger than this, because of the cost.
 
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z-edition 006

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Subscribed as well.

jhn9840
John

Thanks :), here are more pictures of the build. The tanks is up side down in the pictures, that's because i will put some legs on it.
 

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sberry

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What for the valves and what would be the service rating of this vessel itself? 2nd, only somewhat related but just curious about age and background?
 
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z-edition 006

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What for the valves and what would be the service rating of this vessel itself? 2nd, only somewhat related but just curious about age and background?

The valves is for if i only need one tank for small jobs, i can then isolate out tank number 2 by closing the valves.

About 9 bar, the PSV are rated to lift at 10 bar.

I'm 39 years old. Used to work as a industry plumber back in the days. I mostly worked on shipyards and chemical plants. Building pipe systems and weld them. I had a certificate of completed apprenticeship and many welding certificates.

I missed it: Link to your yt channel?

Thanks!

My username on YOUTUBE is: Rovik‘s garage projects

Cool tanks! How many weld passes on the bungs for the valves?

3
 

sberry

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Sorry to dr Clyde for being so abrasive in this thread. Some details of it bring out my own faults. Jake is one of the best here, he is ideally suited or built for just the thing he does, is a poster case for good business.
 

dr_clyde

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Sorry to dr Clyde for being so abrasive in this thread. Some details of it bring out my own faults. Jake is one of the best here, he is ideally suited or built for just the thing he does, is a poster case for good business.

Thanks Cary. Water under the bridge, man.
 

ericlar80

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i welded .750x.035 wall 6061 tubing. We pnuematically tested them at 240psi.
This is overkill..
hes fine

.75" vs 10.75" diameter are two different beasts. The forces involved are in relation to the size of the tank and the pressure. You can't just assume that the wall thickness is fine because it worked on a small pipe.
 
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z-edition 006

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I didn’t like the design of the legs i was planning before. Here is my new idea, this time i made it of angle iron.
 

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gungatim

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Great airtanks. Will last well into the 26. century. Well done and professionally.

Too bad so many U.S. forums have become unbearable; any and all discussion is drowned by the safety nannies. I wonder how these people get out of bed in the morning or how they get anything done -- and indeed what happened to the land of the free, home of the brave?

Perfectionism and overblown regard for safety, or should we say downright FEAR, is the perfect recipe to stifle creativity and enjoyment of projects.

Great observation. could you imagine if someone on here said they were going to make their own car, or locomotive from scratch? 100 yrs. ago people figured it out on their own and invented stuff that is still used today. the industrial revolution couldn't happen today...:lol_hitti
 

bad_idea

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I don't want to alarm you, but you put the legs on the wrong end! They are supposed to be on the bottom, against the floor.
 
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z-edition 006

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Some small change in plans. I got a big used air compressor the other day. I will use all the parts exept the tank on my new design “compressor build”
 

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z-edition 006

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Cool compressor. Looks like 3-phase motor. 11 CFM is respectable output for a one man shop.

Yes it is. I think the CFM is enough for my use. My air tanks is taking shape:
 

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sberry

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Similar version, water collecter, 23 gallons, is a reciever, feed to second omp tank and acts as feed from both to manifold. It's been revised a bit since. Can take either comp out, valve isolated. The green 3 hp is the master, the big blue is a slave and backup,, and tank. Breaker is off to it, don't even turn it on unless blasting or servicing the main.
 

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z-edition 006

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Similar version, water collecter, 23 gallons, is a reciever, feed to second omp tank and acts as feed from both to manifold. It's been revised a bit since. Can take either comp out, valve isolated. The green 3 hp is the master, the big blue is a slave and backup,, and tank. Breaker is off to it, don't even turn it on unless blasting or servicing the main.

Nice compressor and tank setup you got there.

Some more progress on the build. I ditched the tank on the compressor i just got. It only have 2-2,5mm steel thickness, and it's made in 1994. Hard to see inside the tank because i don't have a small flaschlight. I just don't take the risk. My 6mm wall thikness air tanks is more safe and a better choise :bounce:
 

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sberry

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Mine been on 24/7 since 72. There was a decade it was neglected. I recently replumb, change manifold and I really got crispy dry air. I got about 18 inches of 1/2 steel pipe before it hits the 3/4 manifold main and it bugs me,, actually had 3/4 fittings when I looked but I know it doesn't mean squat,, I got to fight the urge to fix it. Goes down 1/2 anyway eventually.
 
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z-edition 006

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Mine been on 24/7 since 72. There was a decade it was neglected. I recently replumb, change manifold and I really got crispy dry air. I got about 18 inches of 1/2 steel pipe before it hits the 3/4 manifold main and it bugs me,, actually had 3/4 fittings when I looked but I know it doesn't mean squat,, I got to fight the urge to fix it. Goes down 1/2 anyway eventually.

My plan is to mount a big aftercooler and a water trap on my compressor before it goes to the tank.
 
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z-edition 006

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Some small progress:
 

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