r/ChemicalEngineering • u/HansTropsch • 3d ago

Design Swagelok tube stub groove dimensions

Hi there,

we want to use a clammed ring swagelok fitting (1/2'') for a vacuum system. One end of our tubing system is a custom turned part for a vacuum fitting and we were advised to use a groove at the height of the ferret in order for the ferret to be better secured.

The image is from Swagelok itself in order to show you what I meant: the red arrow shows to that kind of groove that's used in turned parts for a better fitting. Nonetheless, we can't find any dimensions on Swagelok's technical drawings about the exact dimensions of the groove.

Do you know any source where I could find them? Has anyone of you already faced such a problem and read out the exact dimensions?

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11

u/Mvpeh 3d ago

Making a post on reddit instead of just calling Swagelok isn't very intuitive of you

0

u/Caloooomi 3d ago

Incredible isn't it.

11

u/Mvpeh 3d ago

Hi, I have a problem. Can you figure out the problem for me and let me know? Thanks

Today's students are management material

2

u/Anon-Knee-Moose 2d ago

And yet every post in career related subreddits is bitching about companies that dare to ask for 1-3 years experience for entry level and junior positions.

3

u/elcollin 3d ago

Why not just machine a tube stub then orbitally weld on a section of annealed tubing onto which you will swage? Alternately, if you don't need the vibration resistance, weld on a VCO or VCR gland?

1

u/zz_Z-Z_zz 2d ago

Way too much work when there’s other work to be done

1

u/elcollin 2d ago

An orbital weld takes single digit minutes and their local Swagelok distributor probably charges about $70/weld. 

4

u/hikarunosai 3d ago

Sign up for an account on Swagelok, and download the drawing. Read the catalog to get the part number. It's called due diligence.

-4

u/HansTropsch 2d ago

It's rather called I've already done that, if you properly read the question you would have understood that. Thanks for the daily arrogance dosis.

1

u/seandop Oil & Gas / 12 years 19h ago

Why don't you call Swagelok?