Airlines from valve block

Morning All,

What is the significance of the raised collars on airlines just before entering the valve block and the air bags ?
Just Curious

Are you talking about the plastic collets that hold the air line in place??

These can be pushed down to release to air pipe...

P38guy said:

Morning All,

What is the significance of the raised collars on airlines just before entering the valve block and the air bags ?
Just Curious

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They are an assembly aid to make pushing the pipes in easier so the tool used does not slip along the pipe.

Saint.V8 said:

Are you talking about the plastic collets that hold the air line in place??

These can be pushed down to release to air pipe...

Click to expand...

No on the airline itself there is a raised collar ( try to upload a pic if it helps )

P38guy said:

No on the airline itself there is a raised collar ( try to upload a pic if it helps )

Click to expand...

See my reply above

Datatek said:

They are an assembly aid to make pushing the pipes in easier so the tool used does not slip along the pipe.

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Ah OK that makes sense. If I were to replace airlines at some point I wanted to clarify
Thanks

P38guy said:

Ah OK that makes sense. If I were to replace airlines at some point I wanted to clarify
Thanks

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There will possibly be a factory tool you can buy for about £80.00 to fit them with. Most important thing to remember is when you fit them. Push them fully home then when system is pressurised push them again they will go in a little further. This extra push is sometimes the difference between a leaky system and a sound one.

This extra push is sometimes the difference between a leaky system and a sound one.[/QUOTE]

Thanks for the Info Wammers. My Mrs was standing over my shoulder whilst I was reading your reply which brought a to her face , Can't take her anywhere

P38guy said:

Ah OK that makes sense. If I were to replace airlines at some point I wanted to clarify
Thanks

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You will not find off the shelf airline with the raised collars.

P38guy said:

This extra push is sometimes the difference between a leaky system and a sound one.

Click to expand...

Thanks for the Info Wammers. My Mrs was standing over my shoulder whilst I was reading your reply which brought a to her face , Can't take her anywhere [/QUOTE]

Wonder what she could possibly have been thinking about?

Datatek said:

You will not find off the shelf airline with the raised collars.

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I did gather that may be the case, I was looking at the 6mm tube at a local pneumatic supplies. I presume It would not cause a problem ? I did read somewhere that to slightly chamfer ends of tube with a pencil sharpener to aid insertion into valve block.

P38guy said:

I did gather that may be the case, I was looking at the 6mm tube at a local pneumatic supplies. I presume It would not cause a problem ? I did read somewhere that to slightly chamfer ends of tube with a pencil sharpener to aid insertion into valve block.

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I have heard that too...but I am sure as long as you cut them dead square, they should seal fine.

Saint.V8 said:

I have heard that too...but I am sure as long as you cut them dead square, they should seal fine.

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Thanks saint. I did order the tube cutting tool ! had too many near misses with the Stanley blade

You can use the pencil sharpener but just breaking the square corner with a little bit of wet or dry will do. Smear of silicone grease on the tube won't do any harm.

Make sure that the tubing is good for a normal-not maximum, working pressure of 150 psi (10 bar).
The original tubing is semi hard nylon not polyurethane which is much softer and elastic.

wammers said:

You can use the pencil sharpener but just breaking the square corner with a little bit of wet or dry will do. Smear of silicone grease on the tube won't do any harm.

Click to expand...

Thanks for that wammers

Irishrover said:

Make sure that the tubing is good for a normal-not maximum, working pressure of 150 psi (10 bar).
The original tubing is semi hard nylon not polyurethane which is much softer and elastic.

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A very valid comment and appreciated