Rubber Fuel & Oil Hoses

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Rubber Fuel & Oil Hoses

Fuel and oil rubber delivery hoses are flexible tubes used to transfer petroleum products from one location to another. These hoses are commonly used in the automotive and industrial sectors for transporting diesel fuel, oil, and other petroleum-based products.

Fuel and oil rubber delivery hoses are typically made from a combination of natural and synthetic rubber, reinforced with layers of fabric or steel wire. The rubber material used in these hoses is chosen for its durability, resistance to heat and chemical damage, and ability to withstand high levels of pressure.

The inner diameter of diesel fuel and oil rubber delivery hoses can vary, but is typically in the range of 5-25mm. The hose length is also variable, and can be cut to fit the specific needs of the application.

Which fuel hose do I actually need?
It depends on the job. For a general fuel or oil line, the Multi-Purpose Fuel & Oil hose covers 5mm to 25mm and is anti-static and very flexible. For small-bore carburettor and injector return lines, the Cotton Braided hose runs 3mm to 12mm. For a fuel filler neck, use the Ultraflex filler hose in 38mm, 51mm or 57mm. For a boat, you need the ISO 7840 marine hose. For high-pressure or exposed engine bay runs, the stainless overbraid hose. Tell us the application and we will confirm.

Are your fuel hoses compatible with E5 and E10 petrol?
Yes - the nitrile-based hoses in this range are formulated for modern ethanol-blended fuels as well as diesel and oils. This matters more than people expect: ethanol attacks unsuitable rubber from the inside, so an old fuel line can look perfectly sound externally while it is breaking down internally and shedding debris into the fuel system.

What does anti-static mean and when do I need it?
Fuel flowing through a hose generates static electricity. An anti-static hose has a conductive path that allows that charge to dissipate rather than build up and discharge as a spark. It matters most on higher-flow transfer applications and anywhere fuel is being decanted or pumped in quantity. Our Multi-Purpose Fuel & Oil hose is anti-static for exactly this reason.

What is a filler neck hose and why is it different?
The filler neck is the large-bore hose between the filler cap and the tank. It is a much larger diameter than a fuel line - ours are 38mm, 51mm and 57mm - and it has a steel wire helix in the wall so it will not collapse or kink as it curves round the bodywork. Our Ultraflex filler hose uses an NBR inner tube with a chloroprene outer for fuel resistance and weathering.

Can I use unreinforced fuel hose on a pressurised system?
No. The unreinforced hose is a smooth extruded nitrile tube with no braid, intended for low-pressure gravity feeds, breathers and transfer work in 3mm to 10mm bores. Anything on a pressurised injection system needs a reinforced hose - use the braided, multi-purpose or stainless overbraid options. If you are unsure whether your line is pressurised, assume it is and use reinforced.

What standards are these hoses made to?
Most are SAE J30 R6, which is the standard automotive fuel and oil hose specification. The marine hose is ISO 7840 A1, the fire-tested grade required on boats. The cotton braided hose is DIN 73379 Type B, and the unreinforced hose is BS EN ISO 11424:2007. Buying to a recognised standard is worth doing with fuel hose - it is not the place to economise.

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