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Marine Hoses (MSH / Wet Exhaust Hoses)

Marine hoses are engineered for use in marine engine systems, where durability, flexibility, and resistance to heat, water, and harsh operating conditions are essential.

Designed specifically for wet exhaust and cooling systems, these hoses are built to withstand the combined effects of heat, pressure, vibration, and saltwater exposure.

  • Designed for marine and wet exhaust applications
  • Resistant to heat, water and harsh environments
  • Flexible and durable construction
  • Ideal for engine cooling and exhaust systems

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What are Marine Hoses?

Marine hoses (MSH hoses) are specialist hoses developed for use in marine environments, particularly in wet exhaust systems, where exhaust gases are cooled by water before being discharged.

These hoses are designed to handle:

  • High temperatures from engine exhaust gases
  • Continuous exposure to water, including saltwater
  • Vibration and movement within marine systems

Their construction ensures reliable performance in demanding marine conditions.

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  • Known As

    • Wet exhaust hoses
    • Marine exhaust hoses
    • Marine silicone hose
    • Boat exhaust hose
    • Marine cooling hose

  • Key Features and Benefits

    Heat & Exhaust Resistance – Designed to handle high temperatures generated by marine engine exhaust systems.

    Water & Saltwater Resistance – Resistant to continuous exposure to water, including harsh marine environments.

    Flexible and Durable Construction – Maintains flexibility under vibration and movement, reducing the risk of failure.

    Reinforced Strength – Engineered to withstand pressure and mechanical stress within marine systems.

    Long Service Life – Built for durability in demanding marine applications, reducing maintenance requirements.

  • What Marine Hoses Are Used For

    Marine hoses are used in a wide range of marine and offshore applications:

    • Wet exhaust systems
    • Marine engine cooling systems
    • Commercial and leisure vessels
    • Offshore and industrial marine equipment
    • Shipbuilding and marine engineering

  • Sizes, Lengths, Angles

    • Inner diameters (ID): From 13mm to 406mm.
    • Straight: Available as standard in 1 metre lengths
    • Type: Also available in 1 hump and 2 hump turbo hoses
    • Colours: Blue with red liner

Why Marine Hoses Are Required

Marine environments present unique challenges that standard hoses are not designed to withstand, including:

  • Exposure to saltwater and moisture
  • High temperatures from exhaust systems
  • Constant vibration and movement
  • Long operating hours under load

Marine hoses are engineered to:

  • Resist heat, water, and environmental degradation
  • Maintain flexibility and strength under vibration
  • Deliver long-term performance in harsh conditions

This makes them essential for ensuring engine reliability and system safety at sea.

Leyland Hose & Silicone Marine Capability

At Leyland Hose & Silicone, our marine hoses are:

  • Designed specifically for wet exhaust and cooling applications
  • Manufactured for resistance to heat, water, and harsh environments
  • Engineered for durability and long service life
  • Available in standard and bespoke configurations

Our hoses provide reliable performance in demanding marine environments, where safety and durability are critical.

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