Fuel Hose Ø38 mm Marine – Flexible, Fuel-Resistant & Flame-Retardant

The Ø38 mm marine fuel hose strikes an optimal balance between flexibility and safety, tailored for the rigorous demands of on-board fuel systems. Its construction features an inner tube of specialty nitrile rubber (NBR) that remains supple and impermeable even after long-term exposure to gasoline, diesel, or ethanol-blended fuels. This inner lining is electrically conductive, bleeding off static charges and thereby reducing the risk of sparking – a critical safety feature for fixed fuel tanks and inboard engine setups. The hose is reinforced with multiple layers of textile yarn, granting it the tensile strength needed to resist expansion under pressures up to 10 bar, yet maintaining flexibility. The outer layer is made from chloroprene rubber (neoprene), chosen for its resilience in marine environments: it won’t crack or dry out under intense UV sunlight, it resists saltwater-induced degradation, and it shields the hose from external wear, abrasion, and minor impacts. Importantly, the neoprene cover is rated flame-retardant (in accordance with A1 classification for marine fuel hoses) – meaning that if exposed to flame, the hose will self-extinguish rather than sustain burning, buying precious time in an emergency. With a 38 mm (1.5") inner diameter, this hose fits a variety of uses on board. Most commonly, it serves as a fuel fill hose connecting a boat’s deck fill port to the fuel tank. Its blend of stiffness and flexibility allows it to be routed smoothly without kinking, ensuring quick and safe refueling. It is equally well-suited as a primary fuel feed line from the tank to an inboard engine (gasoline or diesel), where its fire-resistant and robust design is essential in enclosed engine bays. Installation is straightforward – the hose’s pliability lets it snake through tight compartments without undue effort, and it mates with standard hose barb fittings found on marine tanks and filters. Using marine-grade stainless steel clamps is recommended for securing the hose, to avoid any corrosion around the connections. This fuel hose consistently meets or exceeds marine safety standards (such as ISO 7840 A1), making it a trustworthy component in any marine fuel system.

Recommended Applications:

• Boat Fuel Deck Fill Systems: The 38 mm hose is the go-to standard for fuel filling systems on recreational boats. It connects the deck filler to the tank, and thanks to its sturdy yet flexible nature, it can be routed according to the tank’s position without collapsing, ensuring fast fuel flow during refueling. Boaters benefit from its reliability as it minimizes fuel spillage and vapor escape while refueling at docks.
• Inboard Engine Fuel Lines: For boats with inboard engines (gasoline or diesel), this hose functions excellently as the supply line from the tank to the engine’s fuel system. Its flame-retardant and robust build is crucial for safety in engine rooms. On diesel-powered sailboats or motor yachts, for example, the hose can handle both the main feed and the return lines, coping with diesel’s chemical properties and the slight vacuum on return lines. The consistent inner diameter ensures proper fuel flow, preventing starvation at high engine loads.
• Onboard Generators and Heaters: Many larger boats have diesel generators or cabin heaters that draw fuel from the main tank or a day tank. The Ø38 mm hose can be used to plumb these devices either as a direct line or as part of a fill/transfer system for an auxiliary fuel tank. Its oil resistance means that even if fuel sits in the hose for extended periods (during off-season storage, for instance), the hose material won’t deteriorate. This makes it ideal for intermittent-use systems like generators which may go unused for weeks but must perform reliably when needed.
• Stationary Industrial Use: Beyond marine use, this hose’s attributes make it suitable for static installations on land – such as diesel storage tanks feeding emergency generators or building heating units. When a flexible connection is needed between a fixed tank and rigid piping (to accommodate slight movements or vibrations), this hose excels. It tolerates temperature swings, resists fuel degradation, and its flame resistance provides an extra layer of safety in enclosed facilities. By using a marine-grade hose in terrestrial applications, operators benefit from the superior safety margins and durability that meet maritime standards, often stricter than general industry requirements.