What's this part?

[Bellaireroad]

I have a gray mills parts washer that has an air leak on this fitting, what is this called, and how does it work? Is it some type of compression fitting? Thanks


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[landrover bodger]

it what we call a push fit airline connector just push the pipes in and nip the ends

 

[Bellaireroad]

it what we call a push fit airline connector just push the pipes in and nip the ends

Thanks, it is leaking, how much pressure can they take? About 90 psi on it



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[MedicOC]

Is it leaking at that top fitting?

ETA: On the top of the tee?

Too much pressure on fitting from the bend in the plastic hose most likely.

 

[larry_g]

http://www.wellfittings.com/push-in-fittings-push-to-connect-fittings-pt-r-bspt-npt-grey-body.html

Above is one brand. I can tell from your picture that the sharp bend leaving the fitting is probably your problem. If you get some of these get some of the proper tubing also and replace those one that are to short and causing side pressure on the fitting. To take apart the tube/fitting push on the collar and it will release the tube.

Also they are sensitive to tube size so confirm that the tube and fitting size match.

lg
no neat sig line

 

[Bellaireroad]

http://www.wellfittings.com/push-in-fittings-push-to-connect-fittings-pt-r-bspt-npt-grey-body.html

Above is one brand. I can tell from your picture that the sharp bend leaving the fitting is probably your problem. If you get some of these get some of the proper tubing also and replace those one that are to short and causing side pressure on the fitting. To take apart the tube/fitting push on the collar and it will release the tube.

Also they are sensitive to tube size so confirm that the tube and fitting size match.

lg
no neat sig line

Thanks, it's actually leaking from the bottom which is a straight shot. It is leaking from the area where the chrome ring is, not from where the tube goes in. When you mention push on the collar, I'm taking that to mean the white plastic ring above the chrome ring. Interesting those don't want to push in. I thought maybe there was a spring underneath them but pushing on it does nothing.


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[tcianci]

Doesn't that chrome ring snap out of there to let you press the collar?

 

[txvwnut]

They make those fittings with pipe threads on one of the runs. I suggest one of those types that way you could eliminate that lower fitting and reduce the stress on on the lower side.

 

[Firebrick43]

Parker calls them push to connect fittings. Air line being bent like that so close to the fitting is the likely cause of the leak as MedicOC stated. They will take 90. That needs either a 90 or much longer tubing. Many times at work we can trim off 1/2" and they quit leaking but your tubing is already way to short and it will make it worse. The top tube should be long enough to come straight in and be supported with a clamp or ziptie so the fitting isn't supporting any weight.

 

[Firebrick43]

you have to push in on the tube hard as well as push the white ring the hold the ring as you pull out the tube. Can be awkward to damn right impossible in tight places that you can't use two hands

 

[manwithtools]

The hoses are cut too short causing misalignment to the fittings. I like txvwnut's suggestion, otherwise, I'd replace the hoses and see if I couldn't get better alignment. It's important that hose ends are square cut as well. Fittings are know by many names, push-to-lock, Legris, press-to-connect, etc.

 

[manwithtools]

you have to push in on the tube hard as well as push the white ring the hold the ring as you pull out the tube. Can be awkward to damn right impossible in tight places that you can't use two hands

Also, unless you have done this a lot, it's much easier to do with no air pressure on the system. I got to the point I could do it with 60-80 PSI on them, but it depends on the fitting.

 

[Bellaireroad]

you have to push in on the tube hard as well as push the white ring the hold the ring as you pull out the tube. Can be awkward to damn right impossible in tight places that you can't use two hands

That's the situation here... I've had a regular cuss fest working on this SOB today.. sounded like the sound track from the exorcist


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[robing2017]

Thanks, it's actually leaking from the bottom which is a straight shot. It is leaking from the area where the chrome ring is, not from where the tube goes in. When you mention push on the collar, I'm taking that to mean the white plastic ring above the chrome ring. Interesting those don't want to push in. I thought maybe there was a spring underneath them but pushing on it does nothing.


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It should be a failed fitting. The seal inside the fitting has a problem. To larry_g , I'm using this brand fittings you're recommanding, work fine since last year. You can try their fittings. I ever bought few from their distributor in US. (https://www.wellfittings.com/push-in-fittings-push-to-connect-fittings-pt-r-bspt-npt-grey-body.html)

 

[Dagny]

I hate all that jiffy snap **** how much time does it save in the long run.

 

[larry_g]

I hate all that jiffy snap **** how much time does it save in the long run.

I dealt with literally thousands of those fittings and can say that they were a great advance over their predecessors. Industrial automation uses them by the thousands and for the most part they are trouble free.

What do you recommend in place of this style?

lg
no neat sig line

 

[JonBoehman]

Legris Fitting.

https://www.legris.com/Legris_ecom/RechercherGroupesActivite.do?codeActivite=BP&codeFiliale=usa

 

[iagsxr]

As stated, your problem is that both lines out the top are too short and side-loading that tee.

If you want to spend money go to any truck shop and get an air brake pushlock tee.

Or I use fittings like these all over my car wash. Properly installed they're trouble free

https://www.dultmeier.com/catalog/0.630.2599

 

[Doug Arthurs]

I love this type of fitting. Like anything once in a while you get a leaky one but sure beats dealing with ferrules.

 

[Bellaireroad]

So this thread is over a year old, but I got a new fitting and problem solved


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