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Old 05-22-2011, 05:47 PM   #1 (permalink)
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Trimming the fat from a classic valve

How much can you trim off of a classic valve? say you have a pistol that you are trying to lighten and you have already put a alum huricane valve on the back. I know Luke does tear drop milling but can you do that with the front half as well? anyone know approx how much I can take off of each before it crumbles into nothingness? I do have a classic that I can donate to my friend to have him experiment but it is cheaper for me and easier for him if I can give him a benchmark say .25" off the OD of the vavle from where it clears the rail
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Old 05-22-2011, 06:26 PM   #2 (permalink)
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I believe you can put it on a butcher block and go to town on it with saws and mills and the works and still have a working valve. Someone took everything off they could while maintaing integrity.

I know someone will pop up with pictures soon.
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Old 05-22-2011, 06:41 PM   #3 (permalink)
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The area around the dump chamber is pretty much as thin as you really want to go. The regulator could be thinned out quite a bit, but be careful. As to the on/off section... With some careful milling you could probably remove about 1/3 to 1/2 of the material. The biggest thing to remember is you are altering something that was engineered to be the way it is. You *might* want to air up your milled version on a remote line, with it strapped down, in case something is too thin and ruptures.

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Old 05-23-2011, 08:39 AM   #4 (permalink)
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Thanks guys!
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Old 05-23-2011, 08:45 PM   #5 (permalink)
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I took a few measurements from CP regs, ASAs, etc. and decided on a minimum thickness for my reg body. With the understanding that the reg will no longer be rated for 3000 psi, I also connected it to macro tubing and only use this one on CO2. If you want to whittle the whole thing down, you might just consider a back cap and grip reg setup. I still have the stainless reg in case I miss it.

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Old 05-23-2011, 09:13 PM   #6 (permalink)
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Its on a generation 1 micromag body (one of the few left) so it doesn't have the option of a grip reg... but damn is that some sexy milling on that reg....

@tymcneer How would you take off around the on/off exactly? In rings like Spyders or some other way?

Also spyder did you leave the rings for support or just for looks?
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Old 05-23-2011, 10:34 PM   #7 (permalink)
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Also spyder did you leave the rings for support or just for looks?
Heat transfer; fins. Not counting convection, it has twice the surface area of the original. Aluminum has about 15 times the [thermal] conductivity of stainless. This has even more. With that little macro going straight to the back bottle adapter, it can drain a 9 oz as fast as you can pump-mag without freezing.
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Last edited by Spider!; 05-25-2011 at 02:05 PM.
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Old 05-25-2011, 12:39 PM   #8 (permalink)
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Spider that is both cool and functional!

I haven't tried it, but know of many people using the piston assembly off the reg for an Air America Raptor unit.



It unscrews where the taper starts, and uses the same threads as the Classic valve.
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Last edited by Zoo; 05-25-2011 at 12:44 PM.
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Old 05-25-2011, 02:42 PM   #9 (permalink)
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the hurricane back is lighter because it's alum
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Old 05-26-2011, 08:07 AM   #10 (permalink)
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Spider did you do that all the way around the valve?
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