How to Hydro Pressure Test Air Tank | Compressed Air Tank Hydrostatic Test

[@rueljose8137]

Nice video I learned something new today..

[@TunerwithKids]

Yea I didn’t know about it either until I was researching about rebuilding compressors. Apparently rusted out tanks and explosion are common with old tanks.

[@craigcorbin4098]

This is great! Going to do this on my very old tank.

[@CampfireCrucifix]

You do not need to let it sit for a couple of hours. 15 minutes is more than enough. Reason being is even a small pinhole leak will be enough to visually see on the guage that the pressure has gone down since water is not compressible. But I understand the reason for wanting it to sit for a couple of hours.

[@TunerwithKids]

Yea I wanted to make sure. Plus I had to do family stuff so just left it to ensure no leaks in the fittings, etc.

[@velvetypotato711]

i don't know about metal pressure vessels but it seems like it would create undue stress after long periods

[@mrpush2532]

Good video. I would suggest not doing any types of testing like this inside a building. If tank did let go, well it wouldn't be catastrophic but could get everything wet.

[@dannyredcdsdunn6634]

very nice explanation of the testing.

[@cosmicallyderived]

Wow you can test with the compressor and all the stuff connected like that?

[@TunerwithKids]

Yea, the check valve is supposed to keep it all in tank.

[@mikebrown4429]

i need the fitting to connect my pressure washer to the tank ?

[@TunerwithKids]

I used a quick connect for my rotation pressure washer head. It’s standard NPT thread so you need coupler. amzn.to/40W3W8P

[@ronyerke9250]

Have you gotten your air cooler installed yet?

[@TunerwithKids]

Yea I got a video on it.

[@javaman2883]

You cannot properly hydrostatic test the tank with the safety release valve on. For a proper hydrostatic test you must exceed the rated PSI of your safety valve by 1.5 to 2. The idea is that you are testing to a safety factor (the 1.5 to 2) above the maximum pressure of your tank, which is the safety release valve pressure. That in turn should be higher than your cut-out pressure switch.

[@TunerwithKids]

I think I tested it up to 270psi. That’s more than 1.5x the 155psi the tank holds. It held that pressure for 4+ hours with the one-way check valve still on. I did my research and that OE one way check is good to like 300+ psi. There isn’t a safety relief on the tank in my test, the safety was part of the switch assembly which I removed for the test gauge. There is a safety on the one way check, but that’s on the compressor side, not the tank side of the valve.

[@salvor1]

You are close to failure of a few things here. The 1/2 in valve is ok, iffy on the street el, and the over pressure valve should have tripped. Good test though, be safe. there are a few vids about tanks letting go -some are very bad.

[@TunerwithKids]

That’s the beauty of water tests. No potential energy under hi pressure except a squirt then just flowing water.

[@salvor1]

@@TunerwithKids I agree, but could overstress and damage the fitting or valves or whatever is not made to take that pressure. Just an FYI. Just be aware of the whole picture. I fill my scuba tanks until the paint cracks, and back it off 50lbs.

[@TunerwithKids]

Yea when I started the test, that was my main concern, the check valve. It’s rated for 500 psi so I was below. I would have done the test when I had the bare tank stripped but didn’t know about until I had already reassembled the new valves.

[@tigwelding123]

💪👍💯

[@andrewe3095]

Beautiful! 😊😊😊😊!! Do not waste your time - Promo`SM!