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Technical Details - Aeroquip TFE
racing hose
Conventional brake hoses, manufactured in rubber with textile
reinforcement, are permitted to have a significant amount of
volumetric expansion, that is they swell under pressure, this leads
to a soft feel to the brake pedal, acceptable in a road vehicle but
not for competition.
On racing vehicles, this has lead to the universal usage of smooth
bore PTFE (Teflon ® ) hose with normally a stainless steel. This
hose has the added benefit of lightness, strength, high temperature
resistance and protection from stone damage.
We call it " Moquip TFE ", Aeroquip " TFE racing hose
" or " 2807", Aeroquip Aerospace " 666 ",
other brand names are " Speed-Flex ", 600 ", and
" 411 ". They can be had with re-useable or swaged on
fittings. With the exception of Aeroquip Aerospace, hose and
fittings are interchangeable between brands.
Some countries, not the UK, insist on tests for brake hoses. The TFE
hose assembly passes all the tests except the whiplash test which
ensures that the hose is suitable for withstanding large wheel
movements on vehicles doing hundreds of thousands of miles, quite
sensible, but not relevant to competition motoring. Some hose
specialists have recently come up with complicated assemblies
allowing the hoses to pass the test, but generally speaking, they
are not suitable for high mileage road usage.
These hoses are also suitable for oil pressure gauge lines, fuel
injection pipes, power steering hoses and, because of their high
temperature capabilities, on turbocharger oil feed and return lines.
| Performance
& dimensions.
Temperature
range -73°C to +232°C.
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Hose ID
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Hose OD
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Working Pressure
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Burst Pressure
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Bend Radius
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0.13"
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0.25"
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3000psi
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12000psi
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1.50"
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0.19''
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0.30''
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3000psi
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12000psi
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2.00"
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0.32"
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0.42"
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2500psi
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10000psi
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4.00"
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0.42"
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0.54"
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2000psi
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8000psi
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5.25"
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Sizes. Available from -3 to -16 but only -3,-4,-6
and -8 are relevant to vehicle applications. -3 is used for brake
hose applications, -4 for clutch due to greater fluid transfer
requirements and for turbocharger feeds, -6 & -8 for power
steering and turbocharger drains.
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