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Needle valve fitting help

336 Views 3 Replies 3 Participants Last post by  Rhenerie, 
scolba
Hey Folks,


So I am putting together my CO2 system, and part of that is a Swagelok SS-SS4A with compression fittings. I got the appropriate adapters, I believe, but am struggling a little bit to see how they will actually go together. So attached is a pic of the bits that it came with. My question is....which order and orientation do the compression bits go? I didn't want to really start cranking on the threaded cap without being sure so I didn't ruin it. As it is, if its just barely finger tight with the ferrules in what seems like a logical place, the tube adapter can slide in and out freely.


Any help would be greatly appreciated!

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charlie 1
Looks like it's the correct sequence as laid out in picture.
The smaller ferrule ( back ferrule) follows the same orientation as the front ferrule - smaller end to the valve

Swagelok has a video on installation on their site/ youtube.com
Regards
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scolba
Good deal, thanks!

I didn't realize they had those resources on their site, too. Thanks a lot!
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Rhenerie
Make sure you read the swagelok field assembly guide, or watch those videos.. install the ferrules in the correct orientation, and turn the nut 450° past finger tight (1-1/4 turns or 360+90°)

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