| Discussion Forum: Thread 291339 |
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| | | Author: | tec  | | Posted: | Jun 14, 2021 10:34 | | Subject: | pneumatic is air tight? | | Viewed: | 100 times | | Topic: | Help | |
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| Can air escape from pneumatic cylinders (I mean: internally, around the rod)?
How to test it?
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| | | | | Author: | hpoort | | Posted: | Jun 14, 2021 11:29 | | Subject: | Re: pneumatic is air tight? | | Viewed: | 38 times | | Topic: | Help | |
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| In Help, tec writes:
| | Can air escape from pneumatic cylinders (I mean: internally, around the rod)?
How to test it?
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Just close the little pipe vent with your thumb and press the cylinder. It should
not move.
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| | | | | | | Author: | 1974 | | Posted: | Jun 14, 2021 13:51 | | Subject: | Re: pneumatic is air tight? | | Viewed: | 45 times | | Topic: | Help | |
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| In Help, hpoort writes:
| | Just close the little pipe vent with your thumb and press the cylinder. It should
not move.
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Yes, it should. It's not a hydralic piston (fluids can't be compressed),
but a penumatic piston (gas, can be compressed)
But you should feel a decent resistance to compression and the piston should
not be able to pressed fully down (when the air inlet is blocked)
If you can press it fully down easily, it's leaking from the seal/top and
is defective
Cheers,
Ole
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| | | | | | | | | Author: | tec | | Posted: | Jun 14, 2021 15:31 | | Subject: | Re: pneumatic is air tight? | | Viewed: | 35 times | | Topic: | Help | |
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| In Help, 1974 writes:
| | In Help, hpoort writes:
| | Just close the little pipe vent with your thumb and press the cylinder. It should
not move.
|
Yes, it should. It's not a hydralic piston (fluids can't be compressed),
but a penumatic piston (gas, can be compressed)
But you should feel a decent resistance to compression and the piston should
not be able to pressed fully down (when the air inlet is blocked)
If you can press it fully down easily, it's leaking from the seal/top and
is defective
Cheers,
Ole
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how to test it in extension?
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| | | | | | | | | | | Author: | 1974 | | Posted: | Jun 14, 2021 16:47 | | Subject: | Re: pneumatic is air tight? | | Viewed: | 41 times | | Topic: | Help | |
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| In Help, tec writes:
| | how to test it in extension?
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Same thing. Block the air inlet and it should be hard to pull out. Not hard =
leaky part
If in doubt just try to MOC up something similar to a set and see if it works
Cheers,
Ole
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Netherlands, Groningen
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