Shoebox Tubing Replacement

[shamu]

My F8 Shoebox is leaking at the tubing fittings. Checking with Ocolabs for replacement but wondering if I can get away with using microbore hoses. Was thinking that the threads in the cylinders and crank block were 1/8 NPT but not sure. Does anyone know what may work with microbore? The picture is one of the tubes from my compressor.
Thanks Ray

 

[Impact701]

My thought is, the reason those are steel is because of the heat generated.
I know they get pretty hot on my Shoebox compressor

 

[cahil_2]

Would brake lines and fittings work?

 

[rcs9250]

Would brake lines and fittings work?

I just did a google search of “typical auto brake line burst pressure” and the screen shot below shows the answer I got.
Well with in the range of the shoe box.
But if you go that route maybe research the line you choose for burst pressure.

McMaster Carr has an excellent selection of high pressure lines.

 

[shamu]

I have located the tubing, it's the crimp fittings that are the challenge

 

[rcs9250]

I have located the tubing, it's the crimp fittings that are the challenge

McMaster Carr or if you have a hydraulic shop nearby.
You want a swage type fitting. They are designed for higher pressures. Check the pressure rating when researching.

 

[Revoman]

drcs9250​

I have contacted Swagelok recently to investigate the OCO Labs connector, which is the same as the F-8/10 from way back when.
They have a very specific sort of connector that requires a specific tool to 'crimp' them onto the tubing. I have not been able to locate said fitting and Swagelok, nor a close competitor has said fitting. The black hard-plastic washer and O-Ring are of course secondary to the actual 'crimp' style fitting.
With your obvious Swagelok background and experience working for Swagelok, I might anticipate that you could possibly identify said fitting? It appears that the fitting could be a two-part that one pushes into the other and the crimp is mad
e in that fashion other than the normal compression style.
I have tried via my company contacts, and no one yet can identify.
Any idea?