Essential Guidelines for Purchasing Marine Hydraulic Hose Assemblies

Marine hydraulic pump stations differ significantly from standard hydraulic stations due to their unique operating environment. Ships operate in high-salinity, corrosive conditions at sea, which demands stricter design and manufacturing standards. Below are seven essential considerations when building marine hydraulic pump stations:

1. Drawing Approval
   The hydraulic pump station drawings must be reviewed and approved by the relevant classification society (as specified by the customer). Since the equipment operates in a high-salt offshore environment, the drawings must clearly specify the type of anti-corrosive paint to be used.

2. Waterproofing and Insulation
   The station’s waterproofing and sealing performance, as well as the insulation level of the motor, must comply with the standards set by the classification society.

3. Hose Certification
   All connecting hoses must be certified and type-approved by the classification society.

4. Marine-Grade Cabling
   All cables must be marine-grade, featuring low-smoke, halogen-free, flame-retardant properties, and must be treated for waterproofing.

5. Alarm Systems
   The hydraulic pump station must include alarm systems to monitor pipeline pressure and fluid levels, ensuring real-time fault detection and system protection.

6. Oil Tank Requirements
   Weld seams on the oil tank must be smooth, with sealing tested using kerosene. The surface should be treated with qualified shot peening, and the inner wall must be coated with a corrosion-resistant, paint-proof protective layer.

7. System Cleaning and Oil Quality
   All system pipelines must be thoroughly cleaned with solvent before pump installation to remove dust, fibers, oxide scales, and other contaminants. After testing, the hydraulic oil must be drained, and its cleanliness and temperature must meet the design specifications.