Air brake hose avail for compressed air brake systems for light trucks, buses and heavy trucks to conduct the compressed air force, and for Aftermarket.
Standard: SAE J1402
Material: Tube: EPDM
Reinforcement: Two braided yarn, RFL or Isocyanate treated yarn
Middle layer: Viscosity-strength middle rubber
Cover: EPDM
Feature
Low inner cubage expansion
Resistance of oil, weather and ozone
Low moisture permeation, whip and impulse
Working temperature: -40℃ to +100℃
Burst pressure: ＞6.50Mpa.
Specifications
|
NO |
INS ITEM |
5/16″ |
3/8″ |
1/2″ |
5/8″ |
|
|
1 |
INNER DIAmm |
8±0.2 |
9.6+0.5 |
12.7+0.5 |
16±0.2 |
|
|
OUTER DIAmm |
14±0.3 |
17±0.3 |
22±0.4 |
26±0.4 |
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|
2 |
CONSTRICTION TEST |
φ6.6mm、Length =hose length+30mm Plug Gages all passed |
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|
3 |
AIRTIGHTNESS |
1.4Mpa 3min No bubble、No expansion |
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|
4 |
BUTST TEST |
Burst Stength ≥5.52Mpa |
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|
5 |
LENGTH CHANGE |
0.1Mpa |
Length change -7~+5% |
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|
1.4Mpa |
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|
6 |
Tensile test |
Tensile speed 25.4mm/min 1500Nstength No leack |
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|
7 |
Adhesion test |
Adhesion strength ≥15N/CM |
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|
8 |
High Temp Test |
100℃x70h Inner and Outer No leak |
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|
9 |
Low Temp test |
-40℃x70h hose,bend hose inner and outer No leak and crack |
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|
10 |
Oil Resist |
Hose volum increment can not more than 100% |
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|
11 |
Water Resist |
Sop 70h、speed 25.4mm/min Tensile stength1500N hose No leak |
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|
12 |
Ozone Test |
50±5pphmx40℃x70h, 7times enlarge No Leak |
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|
13 |
Salt Spray test |
Follow GB6458standard, 24h test,hose end No corrosion |
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