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Nylon Fuel Piping - how popular has it become?

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jrgowing(at)bigpond.net.a
Guest

Posted: Wed Mar 17, 2010 1:57 am Post subject: Nylon Fuel Piping - how popular has it become?

I have fitted 1/4" nylon pipe as return from motor  to the main tank and as water drains. 

  

 For general interest, would users please just  flick this message back to me?

  

 JR Bob Gowing, UK Kit 327 in Oz

  

  



I am using the Free version of SPAMfighter.We are a community of 6 million users fightine Professional version does not have this message.    [quote][b]

rampil

Joined: 04 May 2007
Posts: 870

Posted: Wed Mar 17, 2010 6:26 am Post subject: Re: Nylon Fuel Piping - how popular has it become?

Hi Bob,



Did you check the compatibility of the nylon formulation with gasoline

and or alcohols?



Other than that, the nylon requires compression fittings which are not what

was supplied with the kit.



Ira

_________________
Ira N224XS

peterandbettyharrod(at)bt
Guest

Posted: Wed Mar 17, 2010 7:52 am Post subject: Nylon Fuel Piping - how popular has it become?

[quote] ---

peterz(at)zutrasoft.com
Guest

Posted: Wed Mar 17, 2010 8:13 am Post subject: Nylon Fuel Piping - how popular has it become?

Is there not a risk of static-induced pinholes with fuel in nylon? Or is that Teflon? Or.....   



Cheers,

Pete

A239



On Wed, Mar 17, 2010 at 11:52 AM, PETER HARROD <peterandbettyharrod(at)btopenworld.com (peterandbettyharrod(at)btopenworld.com)> wrote:

 [quote]        

 [quote]   ---

ptag.dev(at)tiscali.co.uk
Guest

Posted: Wed Mar 17, 2010 8:38 am Post subject: Nylon Fuel Piping - how popular has it become?

Hi! Bob

Did you check it's fire resistance time ? I can see melting blobs of nylon

............in the engine compartment.

Regards

Bob Harrison G-PTAG



--

rampil

Joined: 04 May 2007
Posts: 870

Posted: Wed Mar 17, 2010 12:30 pm Post subject: Re: Nylon Fuel Piping - how popular has it become?

Triboelectric pinholes (static discharges) happen in thin teflon,

which is why the aerospace grade of Aeroquip 666 (the premiere

fuel hose IMHO) has an embedded carbon strip through the length

of the teflon.



I have not heard of triboelectric problems with nylon, doesn't mean

it doesn't exist.



Ira

_________________
Ira N224XS

jrgowing(at)bigpond.net.a
Guest

Posted: Wed Mar 17, 2010 2:25 pm Post subject: Nylon Fuel Piping - how popular has it become?

Ira

Did not do any checking - just accepted a friend builder's suggestion.

Very easy to fit and very easy to take out again. Fittings have a lock 

ring - push pipe in and it grabs, push on the ring and you can withdraw it.

JR

---

fklein(at)orcasonline.com
Guest

Posted: Wed Mar 17, 2010 2:49 pm Post subject: Nylon Fuel Piping - how popular has it become?

Ira...How thin is "thin teflon"?



Is automotive EFI R9 hose lined w/ "thin" teflon, or something thicker  

to deal w/ the issue you describe?



If the R9 hose w/ the blue teflon liner IS subject to triboelectric  

pinholes, why doesn't it concern the auto manufacturers?



Fred



On Mar 17, 2010, at 1:30 PM, rampil wrote:



 	  Quote: 	
		   



 Triboelectric pinholes (static discharges) happen in thin teflon,

 which is why the aerospace grade of Aeroquip 666 (the premiere

 fuel hose IMHO) has an embedded carbon strip through the length

 of the teflon.



 I have not heard of triboelectric problems with nylon, doesn't mean

 it doesn't exist.



 Ira



 --------

 Ira N224XS





 Read this topic online here:



 http://forums.matronics.com/viewtopic.php?p=290664#290664

rparigoris

Joined: 24 Nov 2009
Posts: 796

Posted: Wed Mar 17, 2010 3:43 pm Post subject: Nylon Fuel Piping - how popular has it become?

Hi Fred"How thin is "thin teflon"? Is automotive EFI R9 hose lined w/ "thin" teflon, or something thicker to deal w/ the issue you describe? If the R9 hose w/ the blue teflon liner IS subject to triboelectric pinholes, why doesn't it concern the auto manufacturers?"Here is a bit more info:http://www.sacskyranch.com/statichose.htmRon Parigoris   [quote][b]

fklein(at)orcasonline.com
Guest

Posted: Wed Mar 17, 2010 4:46 pm Post subject: Nylon Fuel Piping - how popular has it become?

quote from http://www.sacskyranch.com/statichose.htm : 	  Quote: 	
		  

Static charge generation occurs as liquids flow through hoses and is dependent upon the potential of the hose surface to accept or donate electrons, the speed at which the liquid is moving and the conductivity of the hose liner. Electrostatic discharge in the form of an electric spark occurs from the hose inner tube to the steel braid thereby creating a pin hole leak. 	
That would seem to indicate that the potential for triboelectric pinholes is a consequence of the steel braid surface of the hose.

I have used automotive R9 EFI hose (w/ the blue teflon liner)...(at $6/7 dollars/foot, it's not exactly "cheap")...I have planned on using steel braid on only those hoses which are forward of the firewall...if I carry out that plan, it sounds like all will be well if I use the Mil Spec. MIL-H-25579E hose forward of the firewall or where ever steel braid is used.

I would be grateful for any comments anyone?

Fred

A194

On Mar 17, 2010, at 4:36 PM, rparigor(at)suffolk.lib.ny.us (rparigor(at)suffolk.lib.ny.us) wrote:

 	  Quote: 	
		  Hi Fred

"How thin is "thin teflon"? Is automotive EFI R9 hose lined w/ "thin" teflon, or something thicker to deal w/ the issue you describe? If the R9 hose w/ the blue teflon liner IS subject to triboelectric pinholes, why doesn't it concern the auto manufacturers?"

Here is a bit more info:

http://www.sacskyranch.com/statichose.htm

Ron Parigoris

  	  Quote: 	
		  

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 [quote][b]

donaldheath(at)sbcglobal.
Guest

Posted: Wed Mar 17, 2010 6:59 pm Post subject: Nylon Fuel Piping - how popular has it become?

JR Gowing wrote: [quote]         (at)font-face { 	font-family: Cambria Math; } (at)font-face { 	font-family: Calibri; } (at)page Section1 {size: 612.0pt 792.0pt; margin: 72.0pt 72.0pt 72.0pt 72.0pt; } P.MsoNormal { 	MARGIN: 0cm 0cm 0pt; FONT-FAMILY: "Calibri","sans-serif"; FONT-SIZE: 11pt } LI.MsoNormal { 	MARGIN: 0cm 0cm 0pt; FONT-FAMILY: "Calibri","sans-serif"; FONT-SIZE: 11pt } DIV.MsoNormal { 	MARGIN: 0cm 0cm 0pt; FONT-FAMILY: "Calibri","sans-serif"; FONT-SIZE: 11pt } A:link { 	COLOR: blue; TEXT-DECORATION: underline; mso-style-priority: 99 } SPAN.MsoHyperlink { 	COLOR: blue; TEXT-DECORATION: underline; mso-style-priority: 99 } A:visited { 	COLOR: purple; TEXT-DECORATION: underline; mso-style-priority: 99 } SPAN.MsoHyperlinkFollowed { 	COLOR: purple; TEXT-DECORATION: underline; mso-style-priority: 99 } SPAN.EmailStyle17 { 	FONT-FAMILY: "Calibri","sans-serif"; COLOR: windowtext; mso-style-type: personal-compose } .MsoChpDefault { 	mso-style-type: export-only } DIV.Section1 { 	page: Section1 }       <![endif]-->       <![endif]-->   I have fitted 1/4" nylon pipe as return from motor to the main tank and as water drains. 

    

   For general interest, would users please just flick this message back to me?

    

   JR Bob Gowing, UK Kit 327 in Oz

    

    

 

   I am using the Free version of SPAMfighter.

 We are a community of 6 million users fightine Professional version does not have this message.

    	  Quote: 	
		  



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 [b]

jrgowing(at)bigpond.net.a
Guest

Posted: Wed Mar 17, 2010 8:44 pm Post subject: Nylon Fuel Piping - how popular has it become?

Pete

 I just accepted a fellow builder's suggestion that  it was becoming popular. Easy to  use - etc

 JR

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