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PostPosted: Mon Feb 17, 2014 5:23 pm 
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I recently picked up a separate tank for home shooting sub 500.
Second tank I'd like to tweak to 2kpsi but both my ninja regs are spring based.
Coil bind does not allow 2k on (mine at least) spring ninja reg. Yes - HELLO burst @ 1.8k.

I'd rather not purchase a third reg just to get a belleville stack to play with, so are there any known sources or are they so pricey on there own that a third reg is the cost effective way?

Either way sources are welcomed.


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PostPosted: Mon Feb 17, 2014 5:26 pm 
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Not sure where you are located, but here is a place I use in Waterloo, Ontario.

www.trakar.com

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PostPosted: Mon Feb 17, 2014 7:30 pm 
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Location: Coalmont BC
Pick up the 5/8" OD x 5/16" ID x 0.032" thick Bellevilles from Trakar and you should be good to go.... Try a stack like this....

)) () () () () ((

With shims you should be able to go from ~1300 to ~2300, maybe a bit more.... The coil springs are not intended for over 1000 psi....

Bob

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Dominion Marksman Silver Shield - 5890 x 6000 in 1976, and downhill ever since!
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Too many! Springers, Pumpers, CO2, but I love my PCPs and developing them!
Proud Member of the 2000+fps Club!


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PostPosted: Mon Feb 17, 2014 7:40 pm 
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Mucho Enchilada gracias avec plus de bueno.
Thanks guys.

If either of you have locked in the "other" data required or have a part number I welcome it.
Nearest neighbor to measurements and thickness is:
http://www.trakar.com/products/bellevil ... bmitpart=1

30 series .625 OD, .032 thick - @ 260lbs flat load but ID has just .006 over piston shaft and likely require Oring removal for install @ .317 ID
Then there's the thinner .022, deeper dish version .020 vs .016 @ paltry 105 flat load:

http://www.trakar.com/products/bellevil ... bmitpart=1

I sent them an email then realized I don't have enough data to ask a sufficiently qualified question, like overall height, dish, flat load rating.


Last edited by blarg on Mon Feb 17, 2014 8:37 pm, edited 1 time in total.

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PostPosted: Mon Feb 17, 2014 8:12 pm 
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Location: Canada
Ordered mine from Fastenal in Edmonton.Got the shims from Scopes and Ammo.

Al


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PostPosted: Mon Feb 17, 2014 8:46 pm 
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These?
https://www.fastenal.com/web/products/d ... ngMachine=


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PostPosted: Mon Feb 17, 2014 8:50 pm 
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Yes to either of the 0.032" thick ones, Fastenal or Trakar.... Will likely require different shimming....

Bob

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Dominion Marksman Silver Shield - 5890 x 6000 in 1976, and downhill ever since!
Airsonal;
Too many! Springers, Pumpers, CO2, but I love my PCPs and developing them!
Proud Member of the 2000+fps Club!


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PostPosted: Tue Feb 18, 2014 1:10 pm 
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These are .60$ each at fastenal.
Lots cheaper than a new regulator.
Thanks again guys.


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PostPosted: Mon Feb 24, 2014 4:13 pm 
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What is rule of thumb regarding thou/psi in shim speak?
Hand pumping a 48 ci tank and hoping to get close first shot.

edit: I must have been offered the per 1000 price on website, they were actually .6734$/100 price.
Fastenal part # 33363


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PostPosted: Mon Feb 24, 2014 10:15 pm 
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This may get you close.... but be prepared to adjust it a few times.... The data was taken using just one regulator, and they vary all over the place....

Image

I made up a tiny (less than 1 CI) tank that I install the regulator into when setting it.... to avoid wasting all that air....

Bob

_________________
Dominion Marksman Silver Shield - 5890 x 6000 in 1976, and downhill ever since!
Airsonal;
Too many! Springers, Pumpers, CO2, but I love my PCPs and developing them!
Proud Member of the 2000+fps Club!


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PostPosted: Mon Feb 24, 2014 11:42 pm 
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Thanks Bob, I couldn't wait and was already 1kpsi into my test pump.
Based on the other post I started with twelve belleville (one additional same flip side belleville).
Then used the .004/50psi rule to add 300psi (hopefully) to round in somewhere around 2k on the 3k output disc.
We'll see where it lands, but anywhere +/-200 should do until I feel like re pressurizing full 48ci again.


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PostPosted: Tue Feb 25, 2014 7:53 am 
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Location: Canada
Reasonable to assume you have a test rig to measure output pressure while you're filling???

Al


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PostPosted: Tue Feb 25, 2014 9:26 am 
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Most reasonable an assumption that and a worthy one to post.
Thank you.


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PostPosted: Tue Feb 25, 2014 11:47 am 
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Location: Rocky Mtn Hse Alberta
blarg wrote:
Most reasonable an assumption that and a worthy one to post.
Thank you.


Pics?

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Walter


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PostPosted: Tue Feb 25, 2014 11:58 am 
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Imagine daisy chained pump, bottle, reg line to gun with gauge.
When the bottle pressure departs from gun pressure I know my set point.
The gun can handle 3k, but I am starting at reg guess pressure at bottle, charging gun with it to drop bottle and equalize, then working up to departure pressure from there. Despite my 3k output burst, I got mad respect for airbombs, yo.

I know, pix or it didn't happen, pix or stfu...
I'm ok with both.
Grateful for the help though.


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