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Finally Got a Fridge Compressor (Need Help Setting Up)

A place to ask general spud cannon related questions.
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Unread postAuthor: Crna Legija » Mon Sep 06, 2010 1:53 am

wyz2285 wrote:Nice fridge compressor you got there :) .one question, how much pressure can a normal fridge compressor produce?


iv taken myn to 700psi :twisted:

also i got some cool QD, even at 700psi i have no problem opening them. idk what they are called, i got them free from work when we had to replace them for higher flow ones
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Last edited by Crna Legija on Tue Sep 07, 2010 10:10 pm, edited 1 time in total.
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Unread postAuthor: BeaverRat » Tue Sep 07, 2010 6:11 pm

I think I found some good QD couplings...

McMaster:

6537K91

6537K73
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Unread postAuthor: POLAND_SPUD » Mon Sep 13, 2010 7:20 pm

ok here are two examples...
The one already attached to the tube is a part (that brass part) I removed from an old water tap ( it had a seal in it already ). Then there is a 1/2" union, a 1/2" to 1/8" bushing and a 1/8" fitting for 4mm OD tubing
(that I use to connect the compressor to the tank and I also use it to connect spudguns to the tank)

The other type is pretty self-explanatory
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Unread postAuthor: BeaverRat » Mon Sep 13, 2010 8:11 pm

So does tightening the two 1/2" adapters basically squish the rubber washer very tightly against the compressor outlet tube? Since the squished rubber washer is the only contact point on the tube, wouldn't it be very unstable and not aligned properly?
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Unread postAuthor: POLAND_SPUD » Mon Sep 13, 2010 8:19 pm

It works surprisingly well.... wait a second I've been using it on something else as well

ohh I found it
[youtube]http://www.youtube.com/watch?v=jxfTeLxvzWo[/youtube]
there it is used as a homemade push to connect fitting... back then I didn't have 1/2" to 1/8" bushings

even if it isn't aligned properly it's not a problem...

EDIT
ohh btw there are more compression fittings in that video... the barrel is held in place inside the T by two rubber washers... also the newest version of the semiauto uses one to keep the barrel in place

the key is to compress the washers tightly
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Unread postAuthor: BeaverRat » Mon Sep 13, 2010 10:45 pm

So this homeade compression fitting can take 600 PSI?
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Unread postAuthor: POLAND_SPUD » Tue Sep 14, 2010 4:19 am

yes, I still have it on my fridge compressor. And I've never had any problems with it
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Unread postAuthor: BeaverRat » Tue Sep 14, 2010 7:19 pm

Ok, thanks... If I can't find one that will fit, I will build this.
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