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  • Hydrostatic Testing

    I have a situation where I need to Hydrostatic Test a product multiple times a day (50+) up to 1000psi.

    The lines will be filled with up to 500 gallons of water. I need to bring it to pressure as quickly & safely as possible.

    Any input is appreciated.

    Thanks.

    J.C.

  • #2
    Re: Hydrostatic Testing

    1000psi

    I've tested a ton of water mains at around 150psi and I've seen some pretty bad blow outs when things were not thrust blocked properly.
    I can't imagine what could happen at 1000psi.

    What are you testing?
    INSIGHT PIPE is now Maine Drain Serving most of ME with no charge for travel! 207-431-6232 is nolonger a working # our NEW # is 207-355-1476
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    • #3
      Re: Hydrostatic Testing

      Originally posted by Gene Bickford View Post
      1000psi

      I've tested a ton of water mains at around 150psi and I've seen some pretty bad blow outs when things were not thrust blocked properly.
      I can't imagine what could happen at 1000psi.

      What are you testing?
      Manufactured Hose.

      J.C.

      Comment


      • #4
        Re: Hydrostatic Testing

        My jetter(Utah) can not only test that system to 1000psi working pressure,I'll crank it up to 3000 for ya.

        Comment


        • #5
          Re: Hydrostatic Testing

          Originally posted by drtyhands View Post
          My jetter(Utah) can not only test that system to 1000psi working pressure,I'll crank it up to 3000 for ya.
          Thanks. Similar to what's being done now but it's taking too long. Remember, the volume. Bringing 500 gallons up to 1000psi reasonably quick is what's needed.

          J.C.

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          • #6
            Re: Hydrostatic Testing

            Fill it to street pressure from a fire hydrant then finish it with pressure washer to 1000#

            Comment


            • #7
              Re: Hydrostatic Testing

              Originally posted by plumberscrack View Post
              Fill it to street pressure from a fire hydrant then finish it with pressure washer to 1000#
              Already doing something similar. Filling with one pump & reservoir then bringing to pressure with a high pressure pump setup.

              That has been giving a time of approximately 11 minutes to bring to pressure after the lines are filled and purged of air.

              I'm looking at changing the pump but it's difficult to find tables or performance charts for the time it takes for it to do something.

              For example: You can find all kinds of things about gpm, psi, rpms, internals, etc. But nothing involving performance to psi vs. volume.

              Just thought some others may have some experience in something similar that I haven't seen yet.

              Thanks for all ideas. Helps me think.....

              EDIT CORRECTION: 11 MINUTES IS FOR THE SMALLER LINES. THE LARGER LINES HAVE BEEN TAKING 15+ MINUTES IS WHAT I WAS TOLD. DID NOT SEE IT AND TIME IT FOR MYSELF THOUGH.

              J.C.
              Last edited by BobsPlumbing; 01-12-2010, 06:36 PM. Reason: TIMING IS A LITTLE OFF. :)

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              • #8
                Re: Hydrostatic Testing

                1000 psi is a big # but i would think some form of a hydraulic cylinder would be the ticket. Assuming you have all the air out of the system the water itself should be relatively incompressible. It shouldn't take a massive volume to get it to pressure, just a heck of a lot of force. look up hydraulic multiplication of force and i think you'll get a pretty good idea of what i'm talking about. it all has to do with the diameter of the lines your testing vs the diameter of whatever piston your pushing against it with.

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                • #9
                  Re: Hydrostatic Testing

                  Got any pics?

                  Comment


                  • #10
                    Re: Hydrostatic Testing

                    Originally posted by stokefire7 View Post
                    Got any pics?
                    Going to take some soon. Camera wasn't with me when I was checking things out.

                    Thanks.

                    J.C.

                    Comment


                    • #11
                      Re: Hydrostatic Testing

                      2.5 HTD ? Weld a manifold?

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                      • #12
                        Re: Hydrostatic Testing

                        Originally posted by stokefire7 View Post
                        2.5 HTD ? Weld a manifold?
                        Here comes my ignorance. What's 2.5 HTD? Heat Treated ???

                        The manifold is in place already and everything is in operation. Just looking to improve on the system.

                        I like the Hydraulic piston idea. Hadn't thought of that. Wonder what I could find???? Hmmmmm.....

                        Thanks.

                        J.C.

                        Comment


                        • #13
                          Re: Hydrostatic Testing

                          Sorry. Hose thread.

                          Comment


                          • #14
                            Re: Hydrostatic Testing

                            How could I make a hydraulic piston/pump push water up to 1000psi?

                            Might have to dismantle a tractor.

                            Thanks.

                            J.C.

                            Comment


                            • #15
                              Re: Hydrostatic Testing

                              go to the local tractor supp;y company or something of that nature. Actually an equipment dealer might be a better bet(backhoes, bobcats etc.) Those rams and hoses run at a couple thousand psi. heck better idea, think log splitter, they run a high psi hydraulic pump and are pretty cheap. you could rig up a injection cylinder to the end of the ram and be off like a prom dress

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