Description
Technical Overview
The Yanmar M220 series represents a robust class of large-bore engines widely utilized for main propulsion and heavy auxiliary power generation. Because these engines operate under immense mechanical loads and generate substantial high-velocity fuel injection pulses, the high-pressure fuel lines must possess superior structural integrity.
To comply with SOLAS (Safety of Life at Sea) regulations, our Yanmar M220 fuel pipes feature a fully jacketed design. This double-walled construction ensures that if the inner high-pressure tube suffers a micro-fracture, the highly flammable fuel mist is safely contained and drained away from hot turbocharger and exhaust manifolds, preventing catastrophic engine room fires.
- Compatible Engine Type: Yanmar M220, M220L, M220AL, and M220-Series propulsion and GenSet configurations.
- Component Type: Sheathed / Double-Walled Fuel High-Pressure Injection Pipe.
- Safety Compliance: Fully compliant with SOLAS anti-splashing and class leak-detection protocols.
- Fuel Compatibility: Engineered for continuous service with high-viscosity Heavy Fuel Oil (HFO), Marine Diesel Oil (MDO), and Marine Gas Oil (MGO).
Key Features & Performance
- SOLAS-Compliant Double-Wall Safety: Constructed with a heavy-wall, high-tensile inner steel tube completely enclosed within a protective outer protective shroud. Any internal fuel leak is instantly isolated within the jacket channel and directed to the engine’s centralized fuel leakage alarm tank.
- High-Fatigue Seamless Steel Tubing: Fabricated from superior-grade, cold-drawn seamless steel capable of absorbing relentless hydraulic pressure spikes and persistent mechanical engine vibrations without structural micro-cracking or elongation.
- Precision Metal-to-Metal Sealing: The connection ends feature precision-ground sealing cones and heavy-duty coupling nuts. This creates a perfect metal-to-metal hydraulic seal against both the fuel pump discharge valve and the cylinder head injector inlet, completely eliminating the need for soft gaskets.
- Thermal Expansion Readiness: Designed with precise curves and geometry to withstand structural engine harmonics and the severe thermal expansion changes that occur when switching between ambient-temperature MGO and heated, high-viscosity Heavy Fuel Oil (HFO).
Why Source from Heybeli Marine?
A compromised fuel line on a large-bore engine presents an immediate fire hazard and threatens vessel operations. Heybeli Marine eliminates these risks by providing uncompromised quality:
- Rigorous Pressure Validation: Every Yanmar M220 high-pressure line undergoes strict hydraulic proof testing at pressures significantly higher than normal operating loads to guarantee absolute material integrity.
- Rapid Global Supply Chain: We maintain a ready-to-ship inventory of M-series fuel lines to ensure immediate dispatch to major ports, dry docks, and shipyards worldwide.
- Comprehensive Component Kits: We supply the injection lines complete with all necessary protection sleeves, specialized high-pressure O-rings, and drain couplings required for a hassle-free replacement.
- Verified Technical Fitment: Our team cross-references your specific engine data and pump configuration to guarantee 100% accurate pipe geometry and thread connection matching.
Technical & Safety Note: When installing high-pressure fuel lines on the Yanmar M220, always use a calibrated torque wrench to tighten the connection nuts to the exact manufacturer specifications. Over-torqueing can crack or deform the precision sealing cones, while under-torqueing will cause external leaks or fuel bypass into the sheathing system, triggering false leakage alarms. Ensure all anti-vibration clamps are reinstalled properly to prevent resonance fatigue.