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The oil fuel injector return pipe is a component in a diesel engine's fuel system. It is responsible for returning excess fuel from the fuel injectors back to the fuel tank. In a diesel engine, fuel is pressurized and injected into the combustion chamber by the fuel injectors. However, not all of the fuel is used during combustion. The excess fuel needs to be returned to the fuel tank to maintain proper fuel pressure and prevent fuel from overheating.
The oil fuel injector return pipe connects the fuel injectors to the fuel tank. It allows the excess fuel to flow back to the tank through a separate return line. This helps regulate fuel pressure and ensures that the fuel injectors receive a consistent supply of fuel.
The material is Hydrocarbazine(HNBR) to withstand the pressure and heat generated by the fuel system. It is also designed to prevent leaks and maintain the integrity of the fuel system.
color is black, features are oil resistance, high temperature and shock resistance, Explosion resistance.
Structural stability is effectively prevent leakage, it's safe and reliable to use.
The key seals are imported high performance fluororubber, O-ring is not easy to change and leak.
Besides, we also offer fuel hose, oil hose, air hose, water hose, silicone hose, etc.
PRODUCT PARAMETERS
BRAND XYST
NAME High pressure oil return pipe
MATERIAL Hydrocarbazine
COLOUR Black
OIL RESISTANCE
HIGH AND LOW TEMPERATURE RESISTANCE
EXPLOSION RESISTANCE
Material HNBR
Hardness 70±5HA
Tensile strength: Mpa ≥10
Elongation at break: % ≥200
Resistant(ASTM,D865,150°Cx70h) Change in hardness ( Sauer A): ±15 degrees Mpa ± 30% Tensile Strength : Mpa+30% Rupture hardness change rate :%≤-50%
Resistant liquid GB /T 1690,3 Yau,150 °C x 70h Volume change.max.+30%
Compression set(GB/T7759, dense samplesthe maximum 150 °Cx 22h)% ≤60
F17 low temperature(GB /T15256,procedure A, at -40 'C under no cracks after 3min ) Qualified without cracks
High pressure pump return pipe (Viton) Performance
Burst test : gradually add hot water (90 °C) Squeeze the air ,blast the pressure : bar ≥ 8
Compressed air deformation and sealing: hose from 0 to 2.5bar absolute Under the pressure ofincreaseddiameter:% (during the test must not have significantleakage, After the hose test can be used normally) ≤ 12% increase in diameter
Pull off force of hose and joint Not less than 140N
Under pressure 5bar pressure return pipe to withstand without leakage, pull off
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Main Product:
Fuel Hose,
Rubber Hose,
Seal Strip,
Sealing Strip ,
Rubber Strip,
Auto Parts
