Mechanical Fitter – Marine Valves and Pipe Assemblies

The Mid-Level Mechanical Fitter is responsible for the installation, fitting, alignment, and maintenance of marine valves and piping systems aboard vessels and in shipyard environments. This role requires the ability to work from engineering drawings, perform mechanical assembly with precision, and support system commissioning and testing activities.

Key Responsibilities:

• • Independently fit, align, and install marine valves and piping components, ensuring leak-proof and secure connections.

  • Perform assembly of flanged, threaded, and welded joints according to technical specifications.

  • Interpret isometric drawings, P&IDs, and layout sketches for routing and placement of valves and pipework.

  • Support hydrostatic and pneumatic pressure testing, flushing, and system commissioning.

  • Identify and correct misalignments, material mismatches, or mechanical faults during installation.

  • Collaborate with welding, fabrication, and testing teams to ensure proper mechanical integration.

  • Maintain proper documentation of work performed, material usage, and quality control checks.

  • Adhere to safety procedures, confined space protocols, and environmental standards.

Key Focus Areas:

• • Valve and Pipe Fitting Proficiency: Skilled in assembling and aligning gate, globe, butterfly, check, and control valves in marine piping systems.

  • Drawing Interpretation: Ability to read and implement installation details from isometric piping diagrams and general arrangement (GA) drawings.

  • System Assembly: Familiar with shipboard systems such as ballast, bilge, sea water cooling, fuel oil, and fire main.

  • Leak Testing Support: Assist in setting up and executing pressure/leak testing with a focus on safety and accuracy.

  • Material Handling & Jointing: Knowledge of pipe materials (carbon steel, CuNi, stainless steel) and various jointing methods (flanged, threaded, bonded).

  • Compliance and Workmanship: Awareness of class standards (ABS, DNV, USCG) and marine workmanship quality requirements.

Qualifications:

• • Diploma, ITI, or vocational certification in Mechanical Fitting, Marine Engineering, or equivalent field.

  • 3–5 years of experience in valve and piping installation in shipbuilding, ship repair, or industrial plant environments.

  • Solid knowledge of mechanical tools, alignment techniques, and torque requirements.

  • Ability to work independently or as part of a team in drydock or onboard assignments.

  • Experience with safety practices for hot work, confined spaces, and high-pressure testing.