Stainless braided PTFE fuel hose

[JumbleDuck]

Can anyone recommend a supplier of this stuff? I am looking for 6mm and 8mm ID.

 

[lw395]

Lots of motorcycle and competition car suppliers.
Demon Tweeks?
Merlin Motorsport?

 

[colind3782]

I cut and pasted the thread title into ebay and it came up with 281 results.

 

[JumbleDuck]

I cut and pasted the thread title into ebay and it came up with 281 results.

That's the problem.

I've had a look at Demon Tweeks, and the stuff they sell is supposed to be used only with special end fittings. Is this the case for all the PTFE stuff?

 

[lw395]

That's the problem.

I've had a look at Demon Tweeks, and the stuff they sell is supposed to be used only with special end fittings. Is this the case for all the PTFE stuff?

Probably.
PTFE is not very rubbery, so clamping it like rubber hoses is perhaps not going to work?
You can get AFAIK nitrile oil/fuel hose with an ss overbraid.

 

[Norman_E]

Any reason it has to be PTFE? Car builder solutions sell stainless braided fuel hose in both 6 and 8 mm bore in both standard and ethanol proof forms. https://www.carbuildersolutions.com/uk/stainless-fuel-hose

 

[JumbleDuck]

PTFE is not very rubbery, so clamping it like rubber hoses is perhaps not going to work?
You can get AFAIK nitrile oil/fuel hose with an ss overbraid.

Any reason it has to be PTFE? Car builder solutions sell stainless braided fuel hose in both 6 and 8 mm bore in both standard and ethanol proof forms. https://www.carbuildersolutions.com/uk/stainless-fuel-hose

Good points. I was thinking - a little vaguely - of something as impermeable and long lasting as popular, but perhaps stainless braid over nitrile will be almost as good and easier to use. I have used it before.

 

[penberth3]

Any reason it has to be PTFE?...

And just to throw in another question - why braided? Braided means you can't check the condition of the rubber hose.

 

[pvb]

And just to throw in another question - why braided? Braided means you can't check the condition of the rubber hose.

True. I'd rather have non-braided.

 

[rogerthebodger]

When I first built Distantshaws I used stainless braided rubber hose but am using unbranded rubber hose for the mods.

The issues are that the stainless braded is conductive so could short any loose electrical connections. Shouldn't but could.
The cur end need covering to prevent the sharp ends catching fingers.
the stainless braided hose is not so easy to cut.
the braided covering can migrate up the hose and expose the rubber to damage.
Also the rubber in mine has no inner braid so easier to damage when the outer braid moves.

Old cars would have a rubber sleeve fitted over the steel braid to spread the clamping force.
Or would need to be swaged on fitting like hydraulic hose fittings. Ok for production but not easy as DIY fitting.

 

[JumbleDuck]

And just to throw in another question - why braided? Braided means you can't check the condition of the rubber hose.

True. I'd rather have non-braided.

Confession time. It's not for my boat. It's for my Citroën DS and my Triumph Herald, both of which have in the recent past had their petrol hoses attacked by mice. In fact, I had to replace DS hoses three times before I went for stainless braided, since when the mice have had no effect and are presumably skulking, baffled, in their nests and making appointments with muscine dentists.

I have one more particularly inaccessible hose to do on the DS, and I also need to replace the steel pipe which runs right round the engine in the Herald, and it will be much easier to do that with something flexible.

 

[pvb]

Confession time. It's not for my boat. It's for my Citroën DS and my Triumph Herald, both of which have in the recent past had their petrol hoses attacked by mice. In fact, I had to replace DS hoses three times before I went for stainless braided, since when the mice have had no effect and are presumably skulking, baffled, in their nests and making appointments with muscine dentists.

I have one more particularly inaccessible hose to do on the DS, and I also need to replace the steel pipe which runs right round the engine in the Herald, and it will be much easier to do that with something flexible.

Why don't people post their real intentions in the OP??

 

[penberth3]

Confession time. It's not for my boat. It's for my Citroën DS and my Triumph Herald, both of which have in the recent past had their petrol hoses attacked by mice...

That might be a good reason to go braided. Or you could get a cat? If the mice can't get the fuel lines they might try the electrics.

 

[JumbleDuck]

Why don't people post their real intentions in the OP??

In this case because I couldn't see any relevance. Stainless covered PTFE is stainless covered PTFE, isn't it? And anyway, I was going to get enough to do the boat as well, in due course.

That might be a good reason to go braided. Or you could get a cat? If the mice can't get the fuel lines they might try the electrics.

That is my nightmare, but for some reason the little reesmoggs don't seem to like wiring. Perhaps the plastic (PVC?) insulation is less to their taste than rubber. They do seem to like the foam insulation round the ventilation air hoses on the DS, and years ago one of them ate a chunk of the knob on the end of the height control lever. Which was a mistake, because I found its dead body next to the scene of the crime.