|
|
|
|
| Author |
|
|
Recreational Mechanic
|
Pneumatic Tubing - Is 10mm and 3/8" OD interchangeable?
Anyone in the knowledge base know if 10mm and 3/8" OD pneumatic tubing can be used interchangeably? I know 3/8" is 9.5mm.
Trying to find push-to-connect fittings for air lines to my 4-post lift and some of what I see suggests they can be interchanged. I am having a hard time finding all the connectors I want in one size...some are available in 3/8" and some in 10mm. Pressure load will be 90psi max. Using Polyurethane 3/8 OD tubing. Thanks in advance.
__________________
P Cars: 2022 Macan GTS / One empty garage space ---- Other cars: 2019 Golf R 6MT / 2021 F-250 Diesel / 2024 Toyota GR86 6MT ---- Gone: 1997 Spec Boxster Race Car, 2020 GT4, 2004 GT3, 2003 Carrera, 1982 911SC, 2005 Lotus Elise and lots of other non-Porsches PCA National DE Instructor #202106053 / PCA Club Racing / WRL Endurance Racing |
||
11-03-2019, 12:01 PM
|
|
|
Registered
|
I have had issue (in an industrial setting) where techs mixed 10mm and 3/8 tubing and fittings.
McMaster Carr or Fastenal should have all the push connect fittings you need in both sizes. |
||
|
11-03-2019, 03:15 PM
|
|
|
Registered
Join Date: Mar 2010
Location: Socal
Posts: 2,384
|
I have no idea about push-fit as we do not use it in industrial applications , but metric and imperial are not the same and shouldn’t be mixed ...
90psi is enough to mess you up .... I take it your machine is metric and you want to tube it in imperial ? You’ll probobly find it easier to work back to a thread and convert to swaged tube at that point . Eg : 10mm bspt to 3/8” swaglok . Another option would be to use the threads to adapt to quick disconnects and use air hose . Eg : 10mm bspt to 3/8” fnpt , to a 3/8” male hose qick-connect . You’ll be able to get the hoses and disconnects at harbor freight to save time & cash , but will probobly have to order the pipe adapters . Last edited by ian c2; 11-03-2019 at 08:27 PM.. |
||
|
11-03-2019, 08:21 PM
|
|
|
Dept store Quartermaster
Join Date: Jul 2001
Location: I'm right here Tati
Posts: 19,858
|
No, I had the same issue with some european equipment I purchased for our side business. I just went on Amazon and ordered a small supply of connectors/adapters for 10mm. Super cheap
__________________
Cornpoppin' Pony Soldier |
||
|
11-04-2019, 02:17 AM
|
|
|
Registered
Join Date: Sep 2009
Location: North of You
Posts: 9,160
|
Push to connect has to be the right size, 3/8 will not seal in a 10 mm fitting.
If you need metric look for SMC or Festo tubing online. Don't buy cheap stuff for a lift.
__________________
"A machine you build yourself is a vote for a different way of life. There are things you have to earn with your hands." |
||
|
11-04-2019, 03:49 AM
|
|
|
Platinum Member
Join Date: Jul 2001
Location: Leave the gun. Take the cannoli.
Posts: 20,919
|
I've used SMC and Festo with HS Robotics competition, good stuff......
Purchased from https://www.automationdirect.com
__________________
Politics is in the eye of the beholder - Rodney Dangerfield |
||
|
11-04-2019, 04:34 AM
|
|
|
|
Registered
Join Date: Dec 2002
Location: Dahlonega , Georgia
Posts: 14,562
|
I'm assuming you need the tubing/fittings to activate the safety locks ? For my 2 post lift I was able to find what I needed on Amazon but McMaster Carr or Fastenal are good sources also . I agree use the same size through out don't try to mix and match . You might also consider getting everything from the lift manufacturer if they are still in business . On my lift I regulate the PSI down to about 20 or so to activate the cylinders , no reason to run them any higher . If you are needing the tubing/fittings for some other reason on your lift then that may change the PSI requirement .
__________________
2002 Boxster S . Arctic silver + black top/int. Jake Raby 3.6 SS engine " the beast ". GT3 front bumper, GT3 side skirts and GT3 TEK rear diffuser. 1999 996 C4 coupe black/grey with FSI 3.8 engine . Rear diffuser , front spoiler lip with ducktail spoiler . |
||
|
11-04-2019, 05:55 AM
|
|
911SC 3.0
