Quote from: WHITEFANG on September 15, 2015, 12:15:13 PMI still would like to hear a guess of the front of valve assembly missing anybody as it exited?Listen to the end of video where he says the gun was "in his lap".The way I "picture" him working on it in my head is that he is sitting in a chair with the hammer end of tube resting on his thigh right where the valve entered it. He has his left hand on the back side of tube holding it and applying pressure (inwards) towards his right hand. I picture him applying this pressure as the screwdriver would be in his right hand and he is putting extra pressure on it as he is having trouble removing the "stock" (front grip frame) screw. He is having this trouble as the valve retaining screw is already starting to shear (due to the tube being pressurize from improper installation) and the valve has moved rearward putting pressure on the screw he is removing. Due to the extra extensions he has to hold the tube at an angle away from himself. As he gets the screw farther out, it's just like putting the trigger back, then bang it goes off. Valve into leg, rest of tube/hipac out of hand and into ceiling where the Hipac "breaks" off due to the impact into the ceiling.Thankfully he had those extra extensions on it or I picture him having the tube deeper into his "lap" with the tube right in front of his chest so that it would be in his "power zone" and he would be able to use much more force on the screw.......and the Hipac would have been pointing up directly under his chin.
I still would like to hear a guess of the front of valve assembly missing anybody as it exited?
.. unless it collided with something after it became a rocket....Bob
Alex says he figured out what they did. He said thay he screwed the extension directly into the tube, without the bottom section and somehow sealed it, maybe with JB-Weld or something. I tried it and the extension screws right into the tube. These guys used it to make a longer tube.
I am sorry that any one got hurt- that said- you play with fire you get burnt!! You play with a BOMB and it might/ will go off- WHY on God's green earth would you ever take apart anything under pressure like that?? UNLESS you want to be the next contestant in Darwin theory of the strong will out . TOO many time I've been to close to getting hurt or killed by some one just like that. At least it was air and not TNT, would have taken down the whole house, Apt. or what ever they where in at the time.wow
I have never had a HiPac, but this photo was given to me by Al, and I added some notes with MS Paint....If you click on it to enlarge it, you can plainly see the huge difference between the fine threads that screw into the end of the Crosman tube and the coarse threads between the HiPac and the Extension.... There is one O-ring, on the main (rear) portion of the HiPac, where the front section, or the female threads on the extension, seal.... That O-ring groove is immediately outboard of a shoulder on the HiPac unit, and I have been told represents the thinnest part of the HiPac, and therefore the most likely to break.... I have also been told that in normal operation, the shoulder on the HiPac does NOT touch the end of the Crosman tube, the narrow end butting up against the front seal on the 22XX valve before that occurs.... However, in the video, it looks like the shoulder on the HiPac IS tight up against the front of the 2400 tube, because the HiPac was short of the Disco valve, allowing it to be screwed in all the way.... It further appears on the video that the HiPac fractured right through the O-ring groove, with the rest of it remaining in the gun tube.... Now we know that the HiPac units have been tested to 5,000 psi without an issue.... so the most likely thing is that the HiPac/tube assembly hit something after rocketing away, and that impact broke the HiPac at the O-ring groove.... I'm pretty sure the HiPac separating was "collateral damage" after the valve came out the back and the air inside the tube rocketed it away.... This is just my opinion, based on the evidence we have seen so far, but I think others share it....Bob
.. so the most likely thing is that the HiPac/tube assembly hit something after rocketing away, and that impact broke the HiPac at the O-ring groove.... I'm pretty sure the HiPac separating was "collateral damage" after the valve came out the back and the air inside the tube rocketed it away.... This is just my opinion, based on the evidence we have seen so far, but I think others share it....Bob
...using your phone? Can see the collar on my laptop.... Al
Ok further down on that FB page is a gun from "Randy". I think these give us some clues how the extensions were assembled:
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