Hydraulic Line Flushing & Oil Filtration

Closed-loop filtration of 4,000 litres of hydraulic oil and high-flow flushing of three hydraulic pipelines, achieving NAS Class 5 cleanliness.

Location
UAE
Year
2025

Hydraulic line flushing and oil filtration onboard Sand Carrier 104 at Khalid Port, Sharjah, focused on system cleanliness, operational reliability, and safe project execution.

Project details

A hydraulic conditioning job for Seagull New Horizon Offshore and Maritime FZE, carried out onboard Sand Carrier 104 at Khalid Port, Sharjah. Over three days, 11 to 13 September 2025, the vessel’s hydraulic system was cleaned and conditioned to remove contaminants and improve oil cleanliness. Both the oil and all three pipelines reached NAS Class 5 within the agreed schedule.

Project type
Marine & Offshore
Client
Seagull New Horizon Offshore and Maritime FZE
Asset
Sand Carrier 104
Location
Khalid Port, Sharjah, UAE
Project dates
11–13 September 2025
Key focus
Flushing, filtration, NAS 5
Hydraulic Line Flushing & Oil FiltrationHydraulic Line Flushing & Oil Filtration

Scope of Work

A controlled, step-by-step system clean-up

The work moved from oil filtration to pipeline flushing, with contamination levels monitored throughout and HSE measures in place at every stage.

  • Filtration of 4,000 litres of Shell Tellus S2 VX 46 hydraulic oil.
  • Closed-loop circulation using a diesel-driven flushing unit.
  • Multi-stage filtration with 6-micron and 3-micron elements.
  • Continuous monitoring of oil contamination levels.
  • Flushing of three pipelines (42 mm, 38 mm and 16 mm) serving five cylinders.
  • Installation of blind flanges and isolation plates for high-flow flushing.
  • Waste oil collected in drums for environmentally compliant disposal.

The full scope was completed within the agreed three days (11–13 September 2025). The hydraulic oil and all three pipelines reached NAS Class 5 cleanliness, and flushing records, filtration reports and test results were handed to the client.

Project Overview

Rays Technical Services flushed and filtered the hydraulic system of Sand Carrier 104, bringing both the oil and the pipelines to NAS Class 5 cleanliness.

We followed the approved method statement from the first toolbox talk to the final report, and kept system cleanliness and safe execution at the centre of every step.

What’s included

  • 4,000-litre hydraulic oil filtration
  • Three hydraulic pipelines and five cylinders
  • 6-micron and 3-micron staged filtration
  • Diesel-driven flushing rig with an 800-litre tank
  • 1 Hydraulic Supervisor and 2 Hydraulic Technicians

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