Let me echo Art's note. Tygon (a brand name) tubing is oft used for all
kinds of bizarre chemicals in
the research establishment. "Handles virtually all inorganic laboratory
chemicals."
It comes in wall thicknesses ranging from 1/32' (0.8mm) to 1/8 (3.2mm),
IDs, ranging from
1/32 (0.8mm) to 1 (25mm). with commensurate wall.
It is pricey for 5 feet. For example, a 50' length (15.2m) of a
1/4"(6.4mm) ID, wall of 1/8"(3.2mm)
is $102.40 from the catalog (Fisher Scientific). That is only a tad over
$2/ft which is not bad
but one can only buy it in specified lengths like 50' (at least
from Fisher or any other scientific supply house, eg., VWR).
Nalgene makes a braided clear tubing (Nalgene 980-looks nice) that "Meets
FDA regulations for food use. Also excellent for use with weak acids, weak
bases, and salt solutions." This stuff is rated by nominal working pressure
as well as ID, wall thickness, etc. It is also not an inexpensive product
for the same reason: minimum length purchased is 50' (15.2m). Example.
1/4"ID, 3/32" wall, nominal working pressure 250 psig, $102.95. Again a
tad over $2/ft but...
Nalgene makes other formulations: formulation
890 Teflon FEP tubing "Highly chemical and temperature resistant"
550 Platinum-cured (for high purity!) silicone tubing
560 Platinum-cured & internally braided silicone tubing (Looks nice)
180 PVC Vacuum tubing (very pricey!)
etc.
Now all we need are i) detailed information on which are fuel resistant and
ii) a trial supply
Regards,
Bill
'76B
At 10:38 PM 06/19/2000 -0400, you wrote:
>I worked for an aerial recreational vehicle manufacturer
>until the early 1990's. For the fuel lines on our
>engine systems, we used transparent tubing. I believe it
>was made specifically as fuel line. The product was named
>"Tygon" and came in different ID's. The only things about
>it I remember being a problem were: Fuel in certain areas
>of the country contained different additives which could
>cause the tubing to swell and slip off a fitting (we took
>care of that by safety wiring it). If my memory serves me
>correctly, they had other fomulations that reportedly
>were not as effected by fuel additives.
>The other problem was, one had to keep an eye on the lines
>as they became hard with age (as the fuel wicked the oils
>out of the tubing) and would crack or break.
>Changing them on a regular basis was part of the "normal"
>maintenance for the vehicle.
>Hope this helps and if anyone wants more info, I'll try to
>get more info from one of the guys who designed the
>engine system.
>
>
>Art Mack
>76 MGB (under resto.)
>
>M. Edwin Vaughan wrote:
> >
> > Hello Folks,
> >
> > A friend of mine told me of a local motorcycle shop that has transparent
> > fuel line. Has anyone ever used anything like this? I thought it would be
> > helpful to run a bit of this stuff from the fuel filter to the carby so
> > when I have trouble I can just look at the fuel line and see if it is a
> > fuel delivery problem rather than disconnecting the fuel line and
> > squirting it on something that, knowing me, would subsequently blow up. I
> > currently have a clear Fram fuel filter, which does the trick, but it
> > doesn't fit in the retaining strap like that original fuel filter and
> > this bugs me (I know, being a bit picky!).
> >
> > Any help would be appreciated,
> >
> > Edwin
> > '77 MGB
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