Fluorolined Silicone Coupler Hoses

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Fluorolined Silicone Coupler Hoses

Introducing our Fluorolined Silicone Coupler Hoses collection, where exceptional performance meets superior chemical resistance. Designed to withstand the harshest environments, these coupler hoses combine the flexibility and durability of silicone with the added protection of a fluorolined interior.

Fluorolined silicone coupler hoses are the ideal solution for demanding applications that require resistance to aggressive chemicals, high temperatures, and extreme pressures. The fluorolining acts as a barrier, providing an extra layer of defense against corrosive substances and ensuring the integrity of the hose in even the most challenging conditions.

Crafted with precision and engineered to perfection, our coupler hoses offer seamless connections between various components in fluid transfer systems. The flexibility of silicone allows for easy installation, while the fluorolined interior ensures compatibility with a wide range of chemical substances, including acids, solvents, and caustic solutions.

What does fluorolined mean?
It means the hose has a fluorosilicone inner liner bonded inside the normal silicone construction. Standard silicone is excellent with coolant, air and water but swells and degrades in contact with petrol, diesel and oil. The fluorosilicone liner gives you hydrocarbon resistance on the inside while keeping silicone's heat resistance, flexibility and long life on the outside.

When do I need a fluorolined coupler instead of standard silicone?
Any time fuel, oil or fuel vapour will touch the inside of the hose. That includes fuel lines, oil breathers and catch-can plumbing, oil cooler runs, and crankcase ventilation where oil mist is carried. If it is coolant, water or clean air, standard silicone is the cheaper and perfectly adequate choice. If you are unsure what is passing through the line, ask us before ordering.

Is it compatible with E5 and E10 pump fuel?
Yes. The fluorosilicone liner is compatible with modern ethanol-blended petrol as well as diesel and oils, which is exactly the situation where an older plain silicone or rubber hose gets into trouble. Ethanol attacks unsuitable hose from the inside, so a line can look perfect externally while it is breaking down internally.

What sizes and lengths do you offer?
Internal diameters from 6mm up to 63mm - 21 sizes - in 20 lengths from 50mm to 950mm. Order by internal diameter to match the outside diameter of the pipe stubs you are joining. Short lengths suit joining two stubs; the longer options let you bridge a bigger gap or make a flexible section in a hard pipe run.

What temperature range does it cover?
-60C to +180C. That is a slightly narrower range than plain silicone, which runs to +250C, and it is the trade-off you accept for the hydrocarbon resistance. It is still well beyond what rubber fuel hose can manage, and it covers engine bay temperatures comfortably in normal service.

How is it constructed?
A fluorosilicone inner lining, polyester braid reinforcement for pressure stability, and a durable silicone outer layer that resists heat, ozone and abrasion. It is built to SAE J20 R6, is available in 3 and 4 ply depending on diameter, and the smooth bore keeps flow efficient. The braid is what gives it the pressure rating and stops the bore ballooning.

  • Questions about Fluorolined Silicone Coupler Hoses?

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  • Need something bespoke?

    View our custom hose guide.

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