anyone ever used a grease gun for a hrrststic taste of at tank
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  1. #1
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    anyone ever used a grease gun for a hrrststic taste of at tank

    Has anyone ever used a hand-operated grease gun to hydrostatic test a compressor tank?

    I don't see how it would work other than replacing the grease cartridge cylinder with a piece of threaded on both ends black pipe, bush the BP down to accept a check valve and water hose bushing.

    I read after you fill the tank with water, install a tee on the tank, on one side of the tees run you connect the pump, thread a pressure gauge into the tee's bull, and plug the other end of the tee, I think?

    Pressurize the tank 1 1/2 times at what its rated for and hold that pressure for ten minutes.
    Last edited by tackit; 02-09-2019 at 11:17 AM.
    I've been everywhere but the electric chair, seen everything but the wind...the only two things I can't weld is the crack of dawn and a broken heart!

  2. #2

    Re: anyone ever used a grease gun for a hrrststic taste of at tank

    Ave used one to for hydraulic pump.

    I think it would take for ever to get up to pressure. I personally would use a pressure washer.

  3. #3

    Re: anyone ever used a grease gun for a hrrststic taste of at tank

    Also I think I’m the video he says that the oil isn’t thick enough so who knows if water will work.


    What kind of pressures do you think you will be going up to.

  4. #4
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    Re: anyone ever used a grease gun for a hrrststic taste of at tank

    Why not just use gas from one of your high pressure cylinders?

  5. #5
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    Re: anyone ever used a grease gun for a hrrststic taste of at tank

    Quote Originally Posted by walker View Post
    Why not just use gas from one of your high pressure cylinders?
    can you say..BOMB??? google hydro static testing to find out why water is used and not a gas or air....

  6. #6
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    Re: anyone ever used a grease gun for a hrrststic taste of at tank

    I used a dead weigh tester and it is basiclly a porta power pump with water or light oil .

  7. #7
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    Re: anyone ever used a grease gun for a hrrststic taste of at tank

    One of the cheap electric power washers from Harbor Freight would do a good job for a water pressure test.

  8. #8
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    Re: anyone ever used a grease gun for a hrrststic taste of at tank

    Pressure washer will work fine. Just do not stand next to it, or do this test inside a building, when pressuring up.
    Chris
    Auction Addict

  9. #9
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    Re: anyone ever used a grease gun for a hrrststic taste of at tank

    Quote Originally Posted by gxbxc View Post
    I used a dead weigh tester and it is basiclly a porta power pump with water or light oil .
    A light oil like diesel?....

  10. #10
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    Re: anyone ever used a grease gun for a hrrststic taste of at tank

    It should work. Fill with water, seal, and pump in grease. I'd go higher pressure than 1-1/2 though. I'd feel better about 3 times working pressure. If it's full of water, almost no air, it won't rupture as violent as a tank full of air.
    An optimist is usually wrong, and when the unexpected happens is unprepared. A pessimist is usually right, when wrong, is delighted, and well prepared.

  11. #11
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    Re: anyone ever used a grease gun for a hrrststic taste of at tank

    There must be a recommended limit for pressure testing compressor tanks. Go too high and you could stretch one beyond the point of return (elasticity) and actually ruin it.
    "The things that will destroy America are prosperity at any price, peace at any price, safety first instead of duty first, the love of soft living and the get rich quick theory of life." -Theodore Roosevelt

  12. #12
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    Re: anyone ever used a grease gun for a hrrststic taste of at tank

    I think member walker meant to say to use the high pressure gas to build the pressure with water in the tank, we had a hand pump for doing the hydro on locomotive tanks.
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  13. #13
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    Re: anyone ever used a grease gun for a hrrststic taste of at tank

    Thanks for the info guys, after reading all the threads, it looks like a power washer is the best option. Testing the tank is going to be my first job when the weather warms up. I have a scope to visually check the inside of the tank out but it does not conclusively prove the compressors 80 gal tank is safe to fill to 100 lbs of air. I bought my compressor back in 1992, I get the hebgbies everytime the compressor turns on.
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    I've been everywhere but the electric chair, seen everything but the wind...the only two things I can't weld is the crack of dawn and a broken heart!

  14. #14
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    Re: anyone ever used a grease gun for a hrrststic taste of at tank

    Quote Originally Posted by Hobbytime View Post
    can you say..BOMB??? google hydro static testing to find out why water is used and not a gas or air....
    What, are you an idiot? You fill it with water, then pressurize with nitrogen, or whatever gas you have on hand. This is the way it is done regularly. Even if it splits the two ounces of gasare notgoing to do much.

  15. #15
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    Re: anyone ever used a grease gun for a hrrststic taste of at tank

    Quote Originally Posted by Sandy View Post
    There must be a recommended limit for pressure testing compressor tanks. Go too high and you could stretch one beyond the point of return (elasticity) and actually ruin it.

    Generally one and a half times operating pressure, so 300psi for a 200 pound tank.

  16. #16
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    Re: anyone ever used a grease gun for a hrrststic taste of at tank

    Quote Originally Posted by Sandy View Post
    There must be a recommended limit for pressure testing compressor tanks. Go too high and you could stretch one beyond the point of return (elasticity) and actually ruin it.
    If you read Lincoln's book, stretching steel adds a great deal of strength. The drawings of molecular structure they use to illustrate show molecules not able to fully bond because of tiny carbon molecules obstructing. Stretching allows carbon molecules to fill in holes. The various molecules in steel then can pull tightly together, and strengthen their bond.

    Yield strength of steel is greater after minor stretching.

    Meanwhile, I prefer failure of a tank in a non violent way over failure killing me a year later.
    An optimist is usually wrong, and when the unexpected happens is unprepared. A pessimist is usually right, when wrong, is delighted, and well prepared.

  17. #17
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    Re: anyone ever used a grease gun for a hrrststic taste of at tank

    Why hydro ?? It's old , fill to pressure, and mix some water and Dawn in spray bottle and spray it on. You can use a paint brush to distribute the bubbles.

  18. #18
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    Re: anyone ever used a grease gun for a hrrststic taste of at tank

    Just a quick search. Not bad, considering the price of a new compressor I guess.

    https://www.compressorworld.com/80-g...top-plate.html

    I'd probably go back to Champion for a tank, but probably they're mostly all the same. Champion's, last I checked were made in USA.

  19. #19

    Re: anyone ever used a grease gun for a hrrststic taste of at tank

    Check your local tool rental for portable hydrostatic test pumps . The rental places in our city carry the Rigid 1450 manual units .

  20. #20
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    Re: anyone ever used a grease gun for a hrrststic taste of at tank

    Quote Originally Posted by 331 View Post
    Check your local tool rental for portable hydrostatic test pumps . The rental places in our city carry the Rigid 1450 manual units .
    I ordered one of these to have on hand just because it's cheap, but I'm going with my 3000 psi airless sprayer first.

    https://www.ebay.com/itm/1-Set-25KG-....c100005.m1851

    https://www.mcmaster.com/bspt-to-npt...tting-adapters
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    Last edited by tackit; 02-13-2019 at 08:33 AM.
    I've been everywhere but the electric chair, seen everything but the wind...the only two things I can't weld is the crack of dawn and a broken heart!

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