Quick-Disconnect fittings for air brakes (Part # needed)

[Harold_V]

I expect that nothing more than compression of the O ring holds them together. The pins are likely located such that the O ring is compressed when the two pieces are assembled. In theory, there is little to no load on the coupling, so it has little reason to disconnect. Air pressure pushes against the sides of the pins, so it doesn't cause the coupling to disconnect. A rather clever design, really.

Harold

[10KPete]

That was my 'guess' Harold, but I hate not really knowing......

Pete

[cbrew]

Morning, Harold Nailed it, the o rings have a enough compression on them and create a decent amount of friction.

[10KPete]

Well, OK, now I know. I guess I was holding out for some neat little trick. Simple is better!

Thank you,
Pete

[cbrew]

no black magic here

[Fred_V]

I found my answer about water disconnects. Here are some with 1/4" and 3/8" hose barbs; really cheap.
http://www.usplastic.com/catalog/item.a ... &catid=743

[FLSTEAM]

no black magic here

Ah, come on I live just up the road from the Magic Kingdom.

JB

[cbrew]

I found my answer about water disconnects. Here are some with 1/4" and 3/8" hose barbs; really cheap.
http://www.usplastic.com/catalog/item.a ... &catid=743

I use these for my water and propane connections.
going on 6 plus years with flawless service
http://www.ebay.com/itm/like/3115046662 ... noapp=true

[Phil Tucker]

Phil, I"m glad I was able to find them. I did wonder about the pull apart as I know they are not at all designed for that. They don't break or crack??
Pete

They will tolerate a few cycles of being yanked apart. However, my understanding is that they will eventually break if this is done on a regular basis. I always disconnect mine properly by twisting the connection and have never had to replace a fitting yet.

[Phil Tucker]

I use these for my water and propane connections.
going on 6 plus years with flawless service
http://www.ebay.com/itm/like/3115046662 ... noapp=true

Great tip! These looks like the quick-disconnects made by Rectus in Germany which, unfortunately, are nearly impossible to get hold of now.

[Donhost4449]

I found my answer about water disconnects. Here are some with 1/4" and 3/8" hose barbs; really cheap.
http://www.usplastic.com/catalog/item.a ... &catid=743

I use these for my water and propane connections.
going on 6 plus years with flawless service
http://www.ebay.com/itm/like/3115046662 ... noapp=true

Chris-

Would you share a picture of how you have them set up between your tender and locomotive? I am also interested to know what type of hose you use.

Thanks,
Chris

[Fred_V]

And, how long are they when assembled? I would think that you could machine the threads into a hose barb.