Stainless Braided PTFE Lines

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Stainless Braided PTFE Lines

Post  jc10000rpm on December 20th 2012, 1:05 am

Who makes their own lines using crimp on style Ends...

what dies do u use, what crimper ect....

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Re: Stainless Braided PTFE Lines

Post  dfree383 on December 20th 2012, 1:53 am

I typicaly have a hydraulic shop make them for me when I need them, the proper equipment is expensive.
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Re: Stainless Braided PTFE Lines

Post  jc10000rpm on December 20th 2012, 9:25 pm

thats what iv done as well just hoping to find a DIY solution so i can make them up as i go,....

anybody else ??

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Re: Stainless Braided PTFE Lines

Post  jc10000rpm on December 23rd 2012, 11:40 am

Has everyone gone to push-lock hoses ?? if so what brand and where to you get your supplies ??

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Re: Stainless Braided PTFE Lines

Post  69F100 on December 23rd 2012, 6:12 pm

jc10000rpm wrote:Has everyone gone to push-lock hoses ?? if so what brand and where to you get your supplies ??

Summit Racing or Jegs plus you can find some deals on them on Ebay
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Re: Stainless Braided PTFE Lines

Post  LETHAL_DOSE on December 28th 2012, 5:21 pm

They make a reuseable type fitting to go on the teflon hose. Most of the crimp fittings that we use here for the teflon are a 2 piece deal. They have the fitting with what looks like a hose barb on it, and a crimp sleeve that goes over the outside to crimp. The reuseable fittings are a pain. They area 3 pc deal for the teflon. It is a nut, a ferrule ring, and the fitting. They are a finger poking pain in the butt to put on. The push on deal there are all kinds of different manufacturers, the biggest thing to do is make sure you use push on fittings with push-on style hose. The barb looks different than a regular hose barb. We sell Parker hose here, thepush on hose we sell is the 7212 series. The 1/4"-5/8" will take 28 in Hg and the 3/4" will take 15 in Hg for vacuum. They all have a max WP of 300psi, and with a nitrile tube they work for fuels and oils as well. Most hoses have specific applications where they perform better than others. If you don't want all the fancy braid stuff, the push on stuff is a more economical route.

I have used the teflon stuff in the past, and I think it is a pain. If I were to use any braided stainless hose, it would be like aeroquip, or earls, or russell, or summit (with a rubber tube, not teflon) they all work well. The teflon you have to be careful if you twist it up or bend it too tight, it can close down the hose opening. I do still use the -3an teflon lines for the water injection on the semi, mainly because that is the size of the nozzles that I am connecting to and there are very few choices out there.

To answer your original question, we use a WB-60 crimper with the teflon hose dies based on what size we are crimping. All crimp hose has a crimp od spec that needs to be maintained for the hose to function properly. I think the dies are $200-400 depending on size for the crimper, and the crimper is about $8-10,000 depending on size. You can get smaller crimpers, but that is what we have.

Mike
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Re: Stainless Braided PTFE Lines

Post  dfree383 on December 28th 2012, 5:35 pm

jc10000rpm wrote:Has everyone gone to push-lock hoses ?? if so what brand and where to you get your supplies ??

I used push lock stuff for emc in 2009 for the fuel system, worked great.
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Re: Stainless Braided PTFE Lines

Post  DFI429 on December 29th 2012, 7:05 pm

LETHAL_DOSE wrote:They make a reuseable type fitting to go on the teflon hose...

When I first got into the BBF world I got lucky and scored a bunch of -8 PTFE hose that was being scrapped.. off of TF-34 A-10 Warthog engines Wink The three-piece fittings are a pain for sure, but the durability of the stainless fittings & teflon liner can not be beat.

Had a roundy-round guy on base tell me "that stuff will leak in a year" when he saw it on the race car.. He thought of course I had the rubber stuff though. That was a dozen years ago.. I don't care how much ethanol or whatever is in the fuel.. it won't leak Laughing
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Re: Stainless Braided PTFE Lines

Post  GaryS on December 30th 2012, 10:29 am

x2 on the PTFE
I use the reusable fittings. All stainless hose with reusable fittings are painful but I can make them without dies. The tool kits help and I wrap with tape before cutting the hose. I already have teflon brake hoses, power steering hoses, and AC hoses. I am changing out the entire fuel system. The manufacturers all warn of limited life span for 'rubber' lined stainless hose. NASCAR throws their hose away every year.
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