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NBR ruber fuel line question

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JohnFrance

Joined: 17 Sep 2014
Posts: 78
Location: Grenoble France

Posted: Mon Jul 27, 2015 4:18 am Post subject: NBR ruber fuel line question

To the experts out there who have knowledge of fuel lines and material quality, I would like your opinion on the following tubing. 

It is rated at 10 bar, has no internal reinforcing but has a cotton over-braiding. In theory it is more than adequate for the job as I have a pressure regulator limiting to 2.3 psi but I would like to have your ideas on this product please?



http://www.advancedfluidsolutions.co.uk/6mm-id-14-cotton-over-braided-nitrile-fuel-hose-pipe-tubing-279-p.asp



regards

John

_________________
Europa mono Nr 192

brian.davies(at)clara.co.
Guest

Posted: Mon Jul 27, 2015 5:01 am Post subject: NBR ruber fuel line question

Fuel hose compatibility is a minefield since they introduced ethanol into

Mogas.  The hose you are looking at seems to meet the basic standard of DIN

73379-B, which is nearly equivalent to the American SAE J30R7 hose.  This

was OK in the past but now I would use SAE J30R9 or DIN 73379-3D hose which

is specifically recommended for fuels with ethanol in it.  The only problem

with this stuff is that it is normally spec'd for fuel injection (high

pressure) hose so it is much stiffer and harder to get on the connection

barbs.



Brian Davies



--

mau11(at)orange.fr
Guest

Posted: Mon Jul 27, 2015 6:33 am Post subject: NBR ruber fuel line question

Salut John

La qualité du tuyau dont tu parles doit impérativement être à la norme 

DIN 73379 qui résiste aux carburants actuels. La pression moteur 

tournant de l'essence est de 0.3 bars.

Je te joins la fiche technique du tuyau, celui-ci vient de chez 

transflex à Lyon.



Le 27/07/2015 14:18, JohnFrance a écrit :

 	  Quote: 	
		   



 To the experts out there who have knowledge of fuel lines and material quality, I would like your opinion on the following tubing.

 It is rated at 10 bar, has no internal reinforcing but has a cotton over-braiding. In theory it is more than adequate for the job as I have a pressure regulator limiting to 2.3 psi but I would like to have your ideas on this product please?



 http://www.advancedfluidsolutions.co.uk/6mm-id-14-cotton-over-braided-nitrile-fuel-hose-pipe-tubing-279-p.asp



 regards

 John



 --------

 Europa mono Nr 192





 Read this topic online here:



 http://forums.matronics.com/viewtopic.php?p=445224#445224

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nigel_graham(at)m-tecque.
Guest

Posted: Mon Jul 27, 2015 7:02 am Post subject: NBR ruber fuel line question

I'm not sure when DIN 73379 was introduced, but it may have been before 

ethanol was incorporated into fuel (and might not therefore guarantee 

compatibility), certainly ethanol does react with some synthetic rubbers.

As a subject that is close to my heart, I have collected some 

informative documents (credits in documents), two of which I attach FYI.



Nigel

On 27/07/2015 13:18, JohnFrance wrote:

 	  Quote: 	
		   



 To the experts out there who have knowledge of fuel lines and material quality, I would like your opinion on the following tubing.

 It is rated at 10 bar, has no internal reinforcing but has a cotton over-braiding. In theory it is more than adequate for the job as I have a pressure regulator limiting to 2.3 psi but I would like to have your ideas on this product please?



 http://www.advancedfluidsolutions.co.uk/6mm-id-14-cotton-over-braided-nitrile-fuel-hose-pipe-tubing-279-p.asp



 regards

 John



 --------

 Europa mono Nr 192





 Read this topic online here:



 http://forums.matronics.com/viewtopic.php?p=445224#445224

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jan_de_jong(at)casema.nl
Guest

Posted: Mon Jul 27, 2015 8:14 am Post subject: NBR ruber fuel line question

I bought this stuff:

http://www.nickstruckparts.com/fuelhose.html

Don't know where to get it in Europe..

Jan de Jong



On 7/27/2015 5:00 PM, Nigel Graham wrote:

 	  Quote: 	
		   I'm not sure when DIN 73379 was introduced, but it may have been 

 before ethanol was incorporated into fuel (and might not therefore 

 guarantee compatibility), certainly ethanol does react with some 

 synthetic rubbers.

 As a subject that is close to my heart, I have collected some 

 informative documents (credits in documents), two of which I attach FYI.



 Nigel

 On 27/07/2015 13:18, JohnFrance wrote:

> 

>

> To the experts out there who have knowledge of fuel lines and 

> material quality, I would like your opinion on the following tubing.

> It is rated at 10 bar, has no internal reinforcing but has a cotton 

> over-braiding. In theory it is more than adequate for the job as I 

> have a pressure regulator limiting to 2.3 psi but I would like to 

> have your ideas on this product please?

>

> http://www.advancedfluidsolutions.co.uk/6mm-id-14-cotton-over-braided-nitrile-fuel-hose-pipe-tubing-279-p.asp 

> regards

> John

>

> --------

> Europa mono Nr 192

>

>

> Read this topic online here:

>

> http://forums.matronics.com/viewtopic.php?p=445224#445224

>

steven.pitt2(at)ntlworld.
Guest

Posted: Mon Jul 27, 2015 9:13 am Post subject: NBR ruber fuel line question

May I throw my penny's worth into this conversation, not about the technical 

stuff (I leave that to Nigel), but on sourcing the pipes.

As it happens I have ordered a new kit of parts for the fuel and sight 

guages from Europa direct. Karen has given me a price which is not 

unreasonable and for less than £90 (approx 135 euros) the whole kit is 

available. I did suggest that with the LAA Rally coming up this might be an 

opportunity for bulk ordering in order to get the price down, saving on 

postage etc. So anyone in the market for new fuel pipes and sight lines let 

me know so that I can arrange some packages to be made up.

Regards

Steve Pitt

Chairman, Europa Club

PS we might even be able to do a special price for Club Members!!! (or those 

wanting to join)

---

Burrilla

Joined: 25 Apr 2015
Posts: 184

Posted: Mon Jul 27, 2015 11:54 am Post subject: NBR ruber fuel line question

SAE J30 R6 is designed for Ethanol based fuels and low pressure fuel delivery to Carbs so not as reinforced and easier to work with. Same family as the R9.



It's used in the auto industry for fuel lines. You get short lengths in Halfords.



Alan



Sent from my iPad



[quote] On 27 Jul 2015, at 14:00, Brian Davies <brian.davies(at)clara.co.uk> wrote:

 

 

 

 Fuel hose compatibility is a minefield since they introduced ethanol into

 Mogas.  The hose you are looking at seems to meet the basic standard of DIN

 73379-B, which is nearly equivalent to the American SAE J30R7 hose.  This

 was OK in the past but now I would use SAE J30R9 or DIN 73379-3D hose which

 is specifically recommended for fuels with ethanol in it.  The only problem

 with this stuff is that it is normally spec'd for fuel injection (high

 pressure) hose so it is much stiffer and harder to get on the connection

 barbs.

 

 Brian Davies

 

 --

brian.davies(at)clara.co.
Guest

Posted: Tue Jul 28, 2015 1:07 am Post subject: NBR ruber fuel line question

Jan,



That is Gates 27304 Barricade hose that meets just about every requirement

you could think of.  Manufactured to meet the California emission

regulations for low permeability hose.  It is very hard to get in the UK and

is expensive.  Amazon UK are selling a 24 inch length of 5/16 inch ( 8mm)

for UK£ 6.28 plus postage.  The supplier is Hires Auto Parts International

who will sell a 25 feet roll.  Probably the best you can get.



Regards



Brian



--

jan_de_jong(at)casema.nl
Guest

Posted: Tue Jul 28, 2015 3:01 am Post subject: NBR ruber fuel line question

Brian, yes. The only slight downside (apart from the price) is the 

acceptable but not great kink resistance for the larger diameters.

Regards,

Jan



On 7/28/2015 11:06 AM, Brian Davies wrote:

[quote] 



 Jan,



 That is Gates 27304 Barricade hose that meets just about every requirement

 you could think of.  Manufactured to meet the California emission

 regulations for low permeability hose.  It is very hard to get in the UK and

 is expensive.  Amazon UK are selling a 24 inch length of 5/16 inch ( 8mm)

 for UK£ 6.28 plus postage.  The supplier is Hires Auto Parts International

 who will sell a 25 feet roll.  Probably the best you can get.



 Regards



 Brian



 --

Remi Guerner

Joined: 14 Dec 2010
Posts: 284

Posted: Tue Jul 28, 2015 3:19 am Post subject: Re: NBR ruber fuel line question

Hi John,

My aircraft is 15 years/1235 hours old, so I had to replace all fuel hoses twice. I have always used Gates 3225 hose and I always found the 5 years old hoses to be in very good shape, inside and out. Of course I am using Mogas (unleaded 98). These hoses are inexpensive and can be purchased over the counter at any AD (Auto Distribution) store. I am sure there is one not far from your home. 

For technical details see:

http://ww2.gates.com/france/brochure.cfmbrochure=7803&location_id=11152



Best regards

Remi

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