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PostPosted: Sat Sep 19, 2015 10:22 am 
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Location: Rocky Mtn Hse Alberta
If you own one, depressure it and remove it from your pcp equipment.
Serious safety risk if yours is one of the weakly made units.
Walter

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PostPosted: Sat Sep 19, 2015 11:17 am 
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Location: Alberta Canada
I know youve been following the HiPac incident pretty closely. But are their any known indicators as to recognizing a weak unit vs a good unit? Im sure the owners of these would like to know.

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PostPosted: Sat Sep 19, 2015 12:19 pm 
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Location: Rocky Mtn Hse Alberta
I think each individual Hipac will need to be measured
WRT thinnest weakest section. Then determine a safe working pressure
Or if seriously weak destroy it.
Will update here as info unfolds
I left a message on the Powermax Hipac fb page. See how the creator responds

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PostPosted: Sat Sep 19, 2015 1:29 pm 
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Location: Victoria, BC and Clarkston, WA
Walter? What do you think is a safe wall thickness?
As simple as a Hi-Pac is, I thought about making my own.

Thinking of making one for my CP-1M. Really shouldn't be to different from a 22XX.

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PostPosted: Sat Sep 19, 2015 2:43 pm 
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Location: Coalmont BC
The areas of concern are the thickness of the wall in the inner (back) unit, under the O-ring groove where the two halves screw together.... and also the thickness of the tube wall outboard of the threads on the outer (front) tube.... The same areas exist on the extensions, but have not as yet been looked at.... As the wall thickness varies, so will the MSWP of that unit.... and we have seen reported thicknesses of the inner area under the O-ring from 0.025" to 0.051".... with only 6 units measured so far.... There are different models, with fine and coarse threads where the parts join, and they may be (and likely are) different dimensions.... Until more data is analyzed, caution is definitely advised.... We can calculate the stress on the metal easy enough from dimensions and pressure, what we don't know is the strength of the material(s) used to produce the HiPac.... However, there are typical industry standards used in applications like hydraulics that can be applied, and I'm sure Walter will present all that data once he has it....

Bob

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PostPosted: Sat Sep 19, 2015 3:19 pm 
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Does the same thing go if it is only being used with CO2?

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PostPosted: Sat Sep 19, 2015 3:40 pm 
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Tim CO2 pressures should be fine. Will come up with more helpful advice as we can

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PostPosted: Sat Dec 24, 2016 4:31 pm 
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Just out of curiosity what was the safe working pressure on the thinnest one measured?

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PostPosted: Sat Dec 24, 2016 4:59 pm 
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I use mine with CO2 so I should not have any problem.
make my co2 chamber much bigger.

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PostPosted: Sun Jan 01, 2017 1:39 pm 
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Joined: Mon Mar 09, 2009 6:46 pm
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Location: r Alberta
I shoot mine at 1000 psi. This is a bit higher than CO2. Should this still be OK?


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PostPosted: Sun Jan 01, 2017 2:18 pm 
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Location: southestern Ontario
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Might be a good idea to take it apart and inspect the inside of the unit mine has a groove aprox 1/8 wide about half the thickness of the tube. (I will give exact depth when I find my putty ) so I wouldn't even put co2 at 850 psi in mine !

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PostPosted: Sun Jan 01, 2017 2:26 pm 
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Between that and the o ring area being thin I'm not happy that he hasn't returned my email.

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