Thank You for this video. I have hydro tested many Cleaver Brooks boilers. 1 1/2 times the working pressure is code. Simple and safe.

You saved me a lot of time and money. Thank you!

@iainportalupi

5 жыл бұрын

Chester Crow glad it was helpful! Thanks for watching!

@jakejones5736

5 жыл бұрын

Be careful. Saving time/money could end up costing much more time/money, not to mention personal safety.

Good on you mate! I never thought of a grease gun

This is the type of thing i have been searching for hours to see. An old 100 lb propane tank, welded on, passing a hydro test. I have a tank that i have been using for a few years to store air, never a problem, but I decided to mount the gas engine and compressor that has been feeding it, and put on wheels and a handle to get it around. the old tank the compressor was mounted to (custom build from half inch walled pipe, used to be mounted to a truck, maybe around 2 gallons, not my build, just how i got the compressor) was leaking out the bottom and plum full of rust. and since I don't have all kinds of cash laying around to get a new engine powered compressor, i figured I would just build it. The tank rings nicely, but I wanted to know if it would hold up after welding and the hydro test will be the ticket once I've got the work done.

Great idea, I want to give this a go. Couple questions, was your gauge a water specific gauge or just a regular pneumatic one? Does your grease gun have a check valve on it and was it setup for “bulk” or cartridge grease? Thanks.

Any details what you used to pressurize the tank? I'm guessing it was a grease gun, but where you pumping air or water or what with it?

@iainportalupi

5 жыл бұрын

Did you actually watch the video? At 1:56 I said it was a grease gun filled with water.

Thanks for the helpful video a few questions when you filled the tank with water is it ok if i just pump air from an air compressor into the tank or have to use pressurized water with the already water filled tank? thanks in advance Rgds Wyat

@iainportalupi

4 жыл бұрын

brittlerattle thats a good question. Filling the tank with water and using air would be fine as long as the air pressure is 2x the working pressure that will be in the tank. You want to test it at 2x the working pressure to give yourself a margin of safety under normal use.

@jamier6742

4 жыл бұрын

Iain Portalupi Not that I’m trying to correct you but most codes recommend a PSI of 1.3 to 1.5 X’s the Maximum Allowable Working Pressure, (MAWP) Dependent on the code of Construction the vessel was designed to..... Also, very IMPORTANT!!! Never use a PSI gauge that is rated four times higher than the MAWP.... The hydrotest can escalate to a burst test If to much pressure is introduced to the vessel..... Cool video by the way...... Happy Hydro Testing!!! 👍👍👍

Thankyou for this Vid, Im building an air compressor and want to test it before i use it. thanks

@jakejones5736

5 жыл бұрын

This test will ONLY demonstrate the ability of the tank to withstand (temporarily) such pressure. It says nothing about how safe the tank is.

@drewduncan1670

4 жыл бұрын

Jake Jones Well how do you fully test the safety of the tank then?

@jamier6742

4 жыл бұрын

Drew Duncan To fully test the tank, One would perform Non-Destructive Examination to all visible welds that will be pressure containing. Hydrostatic testing is a great way to test any pressure vessel for soundness. Like I said, other than hydro testing, NDE is involved..... You should really start reading codes if you’re interested in this type of stuff..... The codes are where it’s at.... Happy Reading!!!

Hi nice demonstration, i want to know is there any difference testing tank with water or fill air without water ? I am building air compressor pls advice me tq

@Z-Ack

3 жыл бұрын

You dont need a tank.. you will hurt somebody. Obviously you do not listen or comprehend what you see therefor you will never be able to safely use things that could potentially kill people.. if your grammar says anything about you than you havent listened throughout school as well..

E P I C

One thing I don't understand. You didn't explain when you finally get it too 200psi, how do you know if it passed or failed?

@iainportalupi

2 жыл бұрын

If it ruptures at 200psi it fails. If it can hold 200psi and not rupture it passes. Trust me you’ll know when it fails.

@jptv8738

2 жыл бұрын

@@iainportalupi okay so if it explodes with water, it's less fatal than exploding full of air?

@iainportalupi

2 жыл бұрын

@@jptv8738 yes. Water doesn’t compress so the amount of energy stored in the tank with 200psi of water is 1000’s of times smaller than if it was filled with 200psi of air. The water would just flow out the rupture and you might get wet but if the tank failed with air in it it would explode launching parts of the tank all over the place.

How did u fill ur grease gun with water??

@iainportalupi

Жыл бұрын

I unscrewed the end with the plunger and poured water in.

What about the welded joints?? Need a radiography to test for porosity , slag inclusion of weld

@iainportalupi

5 жыл бұрын

zacmac KRA well it was all tig welded so there wasn’t any slag. As for porosity, that would have shown up as a leak and the pressure would have dropped during the time I was letting it sit there at full pressure.

Those things make a fine pipe-bomb 💥.

Yea how the hell you manage to fill a grease gun with water??

@iainportalupi

3 жыл бұрын

Pull down on rod then take the top off and fill cylinder with water.

E P I C (2)

Okay. Good job with the hydro test. But...... Hydro test or no hydro test.... If you live in the asme code state and you welded on a certified tank without being an ASME code welder, following all procedures and proper documentation..... What you did was illegal. You cannot modify certified pressure vessels willy nilly Most states are asme code States but there are a few that are not.

A hydro-test tests the tank for safety. You only tested that it was able to hold 200 PSI. NOT a hydro-test. But I give you an "A" for effort.

@dihskursiv

5 жыл бұрын

I think you only need to test it to 1.5 times it's intended usage pressure (ASME spec). So as long as he puts a 133psi relief valve on the tank, he should be ok. But, I'm no engineer!

@jakejones5736

5 жыл бұрын

@@dihskursiv Being able to hold a certain amount of pressure, and being able to do so safely are two DIFFERENT animals. A hydro-test actually tests for tank expansion which is the industry standard for tank safety. Granted, testing it at 1.5 times service pressure is definitely better than no test at all.

@dihskursiv

5 жыл бұрын

@@jakejones5736 So, do they actually measure how much the tank expands? How much expansion is allowed? I thought they used measurments only of steel thickness. Their's a video on youtube of a guy pressurizing a job site air tank to 1000psi before it burst. Thanks for the reply.

@dihskursiv

5 жыл бұрын

@@jakejones5736 Much appreciated!

@iainportalupi

5 жыл бұрын

Actually it is a hydro test. What you are describing is a water jacket test. Which is a type of hydro test but not the only type. A water jacket test is used for small pressure vessels, like the paintball cylinder in the video you link to. However the test I did IS an approved hydro test as not every test requires that the change in tank size be measured. Different types of tanks get different hydro tests.

This made me cringe so bad while watching!! The point in a pressure test is to go beyond the normal pressure rating to verify the tank will safely hold the rated pressure, and you have a very good idea for doing that, but please distance yourself from the tank. Set up a longer line if you need to so that you are far from the tank in case it fails. The purpose of these tests are to check for weakness in the tank, you don't want to find it while hugging the tank.

@jamier6742

4 жыл бұрын

Soooooo true.... I shouldn’t say this but at that hydrostatic test pressure, I hardly doubt anyone would get hurt....... Now if it was pneumatic, you’re talking a potential 💣!!! 😆😆😆😆😆 You’re absolutely correct though... One should distance themselves from the vessel and oneself..... Actually he should Have a procedure in place covering the code of construction he is hydrotesting to, but hey this is KZread, were procedures don’t exist!!! 😆😆😆😆😆

@jamier6742

3 жыл бұрын

@@harrier331 Really??? I would have never figured that out. Thanks for your help! 😆😆😆 Just messin with ya...... AGREED!!! T/C

@Z-Ack

3 жыл бұрын

If the tank would have failed, no matter in what way it failed it would make a sound no louder than if you punched the tank with your fist.. then would leak out the water.. ive seen tanks go at 400psi and they just tink real loud and piss out the water. But all that depends on how much air you left in the tank when testing because theres always gonna be some...

@wryanddry2266

3 жыл бұрын

Steven M: You, like so many, are missing the main idea, namely that a volume of pressurized air is dangerous because it holds energy, but pressurized water is not dangerous in that way because it is not compressed. Here is a simple way to look at it: how much work did he do to pressurize that water with the grease gun? Not much---look--he did it by pumping it by hand for a few minutes. But how much work goes into pressurizing a tank that big full of air? A lot--it needs a big electric motor running for awhile and using a lot of electricity.

I've got a better idea. How about if you give nice old compressors to ME?