Seamless solutions for maritime success: Haihao Group’s certified marine pipe fittings

In the intricate network of maritime pipelines, the reliable transport of various fluids is crucial to ensure the seamless operation of marine machinery, guaranteeing the safety of every voyage.

A ship is a complex amalgamation of diverse pipelines, each serving a distinct purpose. They are categorized into:

Fuel Pipelines

Lubricating Oil Pipelines

Seawater Cooling Pipelines

Domestic Sewage Pipelines

Freshwater Pipelines

Exhaust Pipelines

Ventilation Pipelines

Pipeline Identification on Ships

maritime pipelines

maritime pipelines

To facilitate quick identification in the labyrinth of pipelines, color codes are assigned to signify different pipeline systems. This aids in the efficient operation and maintenance of the ship.

Pipeline Identification on Ships

Pipeline Identification on Ships

Structural Composition and Requirements of Maritime Pipelines

The primary components of maritime pipelines include:

Seamless Steel Pipes

Valves and Switches

Hydraulic Pumps

Classification and Selection of Maritime Pipelines

To ensure proper usage, different pressure pipelines are categorized into three levels based on their design pressure and temperature. For pipelines used in Level I and Level II, seamless steel pipes or welded pipes manufactured according to approved welding processes are recommended.

EN 10253-2 90 degree LR elbows P265GHH

EN 10253-2 90 degree LR elbows P265GHH

Relevant Requirements for Maritime Pipelines

Welding Requirements: The completion of pipe fabrication should be followed by grinding, and welding should adhere to the shipowner’s and classification society’s specifications. Generally, a 45-degree welding angle is required, free from obvious weld lumps or scars, and must not contain pores or sand holes.

Surface Treatment: Surface treatment is crucial for enhancing corrosion resistance, tensile strength, and overall mechanical performance. Whether in the workshop or on-site, surface treatment, including pickling, galvanizing, and plastic coating, is mandatory. Stainless steel fittings require passivation treatment.

Installation Requirements:

Install pipelines in a bottom-to-top sequence in concentrated areas like the ship’s engine room.

In case of conflicts, prioritize the installation of larger diameter and more challenging fittings before those with smaller diameters and easier installations.

When using socket-welded connections, install the socket-welded joints in flat or easily weldable positions.

Minimize the use of bends when modifying fittings.

Haihao Group: Certified Marine Pipe Fittings

Haihao Group takes pride in offering a range of pipe fittings that have earned certifications from authoritative classification societies such as ABS, DNV, BV, ensuring their reliability for application in marine pipeline systems. Trust Haihao Group for seamless solutions that meet the stringent requirements of maritime operations, providing durability, safety, and compliance for every maritime venture. Sail with confidence, sail with Haihao Group.