whta‘s the meaning “pull-up”
Fittings should have nuts and ferrules kept on them until tubing isinserted and pull-up is completed.

Use the gap inspection gage on initial installation into the fitting bodyto assure you of sufficient pull-up.

Measuring torque required to pull up a Swagelok tube fitting is not are liable measure of pull up

the above sentences are from a Swagelok Installation Instruction，i can't understand the pull-up. usually it means taking sth higher ， but i think it is not this meaning in the above.

Question

whta‘s  the meaning “pull-up”
Fittings should have nuts and ferrules kept on them until tubing isinserted and pull-up is completed.

Use the gap inspection gage on initial installation into the fitting bodyto assure you of sufficient pull-up.

Measuring torque required to pull up a Swagelok tube fitting is not are liable measure of pull up

the above sentences are from a Swagelok Installation Instruction，i can't understand the pull-up. usually it means taking sth higher ， but i think it is not this meaning in the above.

Answer

thank you, i think i just to take the words as assembly

Answer

You may also use "pull up" in terms of a vehicle stopping. For example, in the car, you may say "pull up here". Another example "wait for the train to pull into the station".

Another context would be to scold/discipline. For example, "if he does it wrong again, I'll pull him up on it"

Hope this helps?

Answer

"pull up" is also the name of a type of hybrid nappy (diaper) - pant for training young children. :)

Answer

From a patent
Typical ferrule type fittings are assembled by what is commonly known as pull-up by turns. Two threaded components, such as a nut and body, enclose the conduit end and one or more ferrules. The assembly is first tightened to a finger tight condition and then a prescribed number of turns, such as one and a quarter or one and a half turns, are used to pull-up the fitting to its assembled condition.
It appears that "pull up" is the term for the tubes being jointed being moved into their final positions, likely as a result of tighening the nuts on the joints.
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Not my area, sorry. Just reading the maniual & googling.

Answer

Measuring torque required to pull up a Swagelok tube fitting is not a reliable measure of pull up
"a reliable"
Was it audio?
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Shevelen8's answer is a general one. It does not apply to the pipe fittings in the swagelok manual you are reading.

Answers · 6

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