elbekko Posted March 9, 2023 Share Posted March 9, 2023 Trying to trace down an air leak in the EAS, and came across this strange push-fit fitting on my rear bags that seems to be leaking slightly. That is with the "collet" removed, which was not the usual type with the fingers built in, but just a cylinder with a taper. Sadly forgot to take a picture of that. It looks like there is only one o-ring instead of the usual two. And it doesn't look replaceable, at least not as far as we could see with the bag still mounted in the car. Has anyone come across this before? Or is this a novel way that the Chinese cheaped out on my knock-off Gen 3s? Zoomed in view of the above picture: Almost looks like that brass insert is pressed in, so I can't really see a way of replacing that o-ring. Might be an option to tap a thread in it and replace it with a regular fitting? Quote Link to comment Share on other sites More sharing options...
landroversforever Posted March 9, 2023 Share Posted March 9, 2023 Might look silly here, but I’m not sure I’ve ever seen a push fit fitting with two orings. That looks fairly normal to me. The missing bit being what pushes the tangs to release the tube. Going to have to have a look at my work stash tomorrow! Quote Link to comment Share on other sites More sharing options...
elbekko Posted March 10, 2023 Author Share Posted March 10, 2023 8 hours ago, landroversforever said: Might look silly here, but I’m not sure I’ve ever seen a push fit fitting with two orings. That looks fairly normal to me. The missing bit being what pushes the tangs to release the tube. Going to have to have a look at my work stash tomorrow! Really? As far as I know most fittings have two o-rings... The missing bit I do have, and is back on now, just forgot to take a picture of it. Quote Link to comment Share on other sites More sharing options...
miketomcat Posted March 10, 2023 Share Posted March 10, 2023 It looks similar in design to hep2o plumbing fittings. Mike Quote Link to comment Share on other sites More sharing options...
David Sparkes Posted March 10, 2023 Share Posted March 10, 2023 It was part of the development story of the Dunlop air suspension for the 38A that they found two O-rings essential to stop leaks. The then standard single O-ring design couldn't meet the 'no leak' criteria. Regards. 3 Quote Link to comment Share on other sites More sharing options...
elbekko Posted March 10, 2023 Author Share Posted March 10, 2023 3 minutes ago, David Sparkes said: It was part of the development story of the Dunlop air suspension for the 38A that they found two O-rings essential to stop leaks. The then standard single O-ring design couldn't meet the 'no leak' criteria. Regards. Thanks, that's good to know. So the EAS fittings aren't "standard" fittings then? And with regular push-fit fittings, I should expect small leaks to be normal? Quote Link to comment Share on other sites More sharing options...
landroversforever Posted March 10, 2023 Share Posted March 10, 2023 1 hour ago, David Sparkes said: It was part of the development story of the Dunlop air suspension for the 38A that they found two O-rings essential to stop leaks. The then standard single O-ring design couldn't meet the 'no leak' criteria. Regards. That solves it then! Just been through my stash at work and they're all single oring. Mostly decent Festo stuff too. Single o-ring also helps show why they're terrible for vacuum systems too. Quote Link to comment Share on other sites More sharing options...
elbekko Posted March 10, 2023 Author Share Posted March 10, 2023 Have been doing some googling... So, as with everything, it exists, McMaster Carr has it, and that's no good to any of us on this side of the pond.https://www.mcmaster.com/9396T112/https://www.mcmaster.com/push-to-connect-tube-fittings/high-pressure-push-to-connect-tube-fittings-for-air-and-water/ It says made in Italy, so it can't be that hard to find, right? Yet I can't seem to find any. Quote Link to comment Share on other sites More sharing options...
L19MUD Posted March 10, 2023 Share Posted March 10, 2023 21 minutes ago, elbekko said: Have been doing some googling... So, as with everything, it exists, McMaster Carr has it, and that's no good to any of us on this side of the pond.https://www.mcmaster.com/9396T112/https://www.mcmaster.com/push-to-connect-tube-fittings/high-pressure-push-to-connect-tube-fittings-for-air-and-water/ It says made in Italy, so it can't be that hard to find, right? Yet I can't seem to find any. They won't post overseas? Could send to me and I send on? Quote Link to comment Share on other sites More sharing options...
elbekko Posted March 10, 2023 Author Share Posted March 10, 2023 1 hour ago, L19MUD said: They won't post overseas? Could send to me and I send on? No, US and Canada only 1 Quote Link to comment Share on other sites More sharing options...
elbekko Posted March 17, 2023 Author Share Posted March 17, 2023 I contacted McMaster-Carr to ask for the details of the manufacturer, and they were very helpful. Those fittings are made by Camozzi, and are called "dual seal". Their UK site: https://store.camozzi.co.uk/Catalogue/Connection/Super-Rapid-Fittings/Dual-Seal-Push-In-Fittings/8512-Male-Stud And another UK supplier: https://www.rowse-pneumatics.co.uk/camozzi-8512-6-1-8 So a bit of progress there. Now to find a supplier that actually lists prices and, for me, is preferably not based in the UK 2 Quote Link to comment Share on other sites More sharing options...
miketomcat Posted March 17, 2023 Share Posted March 17, 2023 Ben if you order them and get them posted to me I can put them with filip's ECU. Mike 1 Quote Link to comment Share on other sites More sharing options...
elbekko Posted March 17, 2023 Author Share Posted March 17, 2023 1 hour ago, miketomcat said: Ben if you order them and get them posted to me I can put them with filip's ECU. Mike Thanks, I'll keep it in mind. First need to figure out what all I need and how I'm going to make it work. Because I guess I'd have to drill and tap the existing fittings on the bags so they'll take a 1/8 NPT. Quote Link to comment Share on other sites More sharing options...
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