| [GMCnet] Air ride fittings [message #339068] |
Sun, 25 November 2018 23:55  |
BobDunahugh
Messages: 2465
Registered: October 2010
Location: Cedar Rapids, IA
Karma: 11
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Senior Member |
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I got some brass tubing fittings with the 73 that I'm selling. They have a gray plastic ring that the tubing goes in. I think the gray plastic is a part of the tubing lock, and then release system. I've never used this type of fitting. As I only use brass compression fittings. Are these fittings dependable? Or should I trash them? Bob Dunahugh
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| Re: [GMCnet] Air ride fittings [message #339078 is a reply to message #339077] |
Mon, 26 November 2018 09:44  |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
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I have used 1/4" airline fittings for at least 10 years. All kinds. The all
brass fittings without the sleeve that inserts into the tubing, fail just
about as often as the "push to seal/push to release" style fittings which
are made from a number of different materials, such as brass, and various
plastic like materials.
Absolutely the most reliable fittings I have found are the ALL BRASS
D.O.T. certified fittings that use a sleeve that inserts into the tubing
and a ferrule and compression nut to clamp onto the tubing and sleeve.
Properly used, they are as reliable as the tubing itself. They are the
only kind I regularly purchase and install into anything I have my
reputation riding on.
The fittings that are supplied with "Air Ride" brand equipment, I
remove and discard. They are mostly plastic junk.
Jim Hupy
Salem, Or
78 GMC ROYALE 403
On Mon, Nov 26, 2018, 7:22 AM Justin Brady wrote:
> I've never seen one fail. We use them in a lot of machinery, and I have
> similar ones on my coach.
> I much prefer the push to connect over the compression fittings.
>
> --
> Justin Brady
> http://www.thegmcrv.com/
> 1976 Palm Beach 455
>
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| Re: [GMCnet] Air ride fittings [message #339082 is a reply to message #339078] |
Mon, 26 November 2018 11:21 |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
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Senior Member |
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The press in fitting is a good indoor application and when the tube is not
gouged, as the fiting does not apply enough compression to overcome the
souge.
The DOT rated I noticed are all rhe one with built in sleeve.
I read in a ad where one company now has the DOT rated Push in fitting.
I have had more issues with the Push in fittings not wanting to release.
On Mon, Nov 26, 2018 at 7:42 AM James Hupy wrote:
> I have used 1/4" airline fittings for at least 10 years. All kinds. The all
> brass fittings without the sleeve that inserts into the tubing, fail just
> about as often as the "push to seal/push to release" style fittings which
> are made from a number of different materials, such as brass, and various
> plastic like materials.
> Absolutely the most reliable fittings I have found are the ALL BRASS
> D.O.T. certified fittings that use a sleeve that inserts into the tubing
> and a ferrule and compression nut to clamp onto the tubing and sleeve.
> Properly used, they are as reliable as the tubing itself. They are the
> only kind I regularly purchase and install into anything I have my
> reputation riding on.
> The fittings that are supplied with "Air Ride" brand equipment, I
> remove and discard. They are mostly plastic junk.
> Jim Hupy
> Salem, Or
> 78 GMC ROYALE 403
>
> On Mon, Nov 26, 2018, 7:22 AM Justin Brady wrote:
>
>> I've never seen one fail. We use them in a lot of machinery, and I have
>> similar ones on my coach.
>> I much prefer the push to connect over the compression fittings.
>>
>> --
>> Justin Brady
>> http://www.thegmcrv.com/
>> 1976 Palm Beach 455
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
> _______________________________________________
> GMCnet mailing list
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--
Jim Kanomata
Applied/GMC, Newark,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
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Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
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| Re: [GMCnet] Air ride fittings [message #339084 is a reply to message #339068] |
Mon, 26 November 2018 11:39 |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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The plastic compression ferrules work as well as the brass ones >IF YOU PUT THE INNER BRASS TUBE IN THE LINE<. Like Jim H says, without it they will all fail. I used them because we had a bunch of them kicking around the studios... the HVAC systems were air controlled. No problems with them.
--johnny
Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
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| Re: [GMCnet] Air ride fittings [message #339091 is a reply to message #339085] |
Mon, 26 November 2018 14:53 |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
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Senior Member |
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I have some HVAC fittings, but keep in mind, they operate a lot lower
pressure and vaccume.
We never cross them, not worth the bother.
On Mon, Nov 26, 2018 at 10:03 AM Justin Brady wrote:
> http://ph.parker.com/us/en/brass-push-to-connect-d-o-t-fittings
>
> Parker makes some nice brass ones, these are the ones I use in my coach
> suspension. They work great, and are used for semi-truck air brake systems
> so
> very reliable.
> I use a lot of the plastic ones in the shop and I've never had a single
> one fail.
>
> The main thing is to use a razor cutter to cut the tube so it's Square.
> They will not work if the cut isn't square.
> --
> Justin Brady
> http://www.thegmcrv.com/
> 1976 Palm Beach 455
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
--
Jim Kanomata
Applied/GMC, Newark,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
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Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
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