Piping as well as Mechanical Completion Services constitute a significant stage of the life cycle of any marine, offshore, or heavy industry project, and they assure that all physical work of installation is completed and checked with the design requirements. This is a very important measure that corrects the preparation of piping systems in a safe and efficient manner prior to the pressurisation or energisation of the systems. Sun Marine engineering Company focuses on providing detailed mechanical completion in Singapore, which ensures that your assets are free of defects and ready to pass onto the pre-commissioning and start-up stage.
Introduction to Piping and Mechanical Completion

Mechanical completion is when the construction and installation of piping and mechanical equipment is 100 percent complete. This is attained prior to pre-commissioning.
- Definition: Mechanical completion is used to confirm that all the parts are installed correctly and are all physically connected, aligned, and ready to be statically tested.
- Importance: It is, as it were, the formal handover between the construction/installation team and the commissioning team that all the pre-commissioning checks are able to begin without significant physical reworking.
- Application of Sun Marine Engineering: The required rigorous examination and confirmation services will be used to warrant this completion status, which guarantees the quality of marine project completion.
The importance of Piping and Mechanical Completion
The final stage is necessary for the protection of assets and manpower.
- Eliminating System Failures: Checking that all the bolts are tight, all the welds are tracked, and that each and every equipment is in the right position will eliminate any failure during pressure test or use.
- Safety and Compliance: This step is to ensure compliance to codes and standards that is essential to marine safety compliance and statutory requirements.
- Minimising Downtime: By detecting and fixing the items in the punch list at an early stage, you eliminate those delays and expensive rework that make the dynamic commissioning process slow and difficult.
- Improving Reliability: Certification offers equipment integrity testing and a proven platform of long-term system verification and performance of the asset.
Scope of Sun Marine Engineering Piping and Mechanical Completion Services
We are offering an all inclusive package which offers total confidence on the integrity of the system.
Piping System Inspection and Checking
Performs visual checkups of piping, verification of material traceability based on MTCs, as well as verification of insulation, and dimensional checks. We deal with Weld mapping and documentation to be certified.
Installation of Mechanical Equipment
Strict examinations on rotating and stationary equipment (pumps, valves, motors, heat exchangers), and baseplate checks, lubrication checks, verification of the installation of the guards, and accessibility of future maintenance.
Leak Testing Pressure Testing
Important integrity test: Hydrostatic testing (water) and Pneumatic test (air/ nitrogen) to ascertain the shell integrity and the leak-free systems as system integrity testing.
Flushing & Cleaning
Washing of the internal system to get rid of construction wastes, rust and contaminants. These are specialised hot oil flushing of the hydraulic systems and process line chemical cleaning.
Documentation/Punch List Clearance
Assembling the complete Mechanical Completion Dossier (MCD), such as test certificates, sign-offs, and as-built documentation. The last punch list closure is done with the client and the classification society.
Industries We Serve
We are experienced in the complicated and highly regulated environment.
- Marine & offshore (offshore mechanical services)
- Shipyards (new buildings) and conversions.
- Still oil and gas (refineries and terminals)
- Industrial mechanical completion (petrochemical & industrial plants).
Key Benefits of Choosing Sun Marine Engineering
We provide efficiency and certification for your project.
- Seasoned Technicians and Certified Engineers: Our staff is made up of certified marine technicians with high experience, working in the marine environment.
- Fast Turnaround: Our effectiveness is pivotal towards responding to the requirements of high-end shipyard and vessel maintenance.
- In-house Testing and Documentation: Our testing (and Pressure Testing) and preparation of proper documentation are all done in-house.
- Compliance: Our procedures are strictly based on international standards, such as the services of DNV approval and other significant classification society standards that guarantee the healthy project quality assurance.
The Reliability of Mechanical Completion at Sun Marine
We follow a high-level level of auditable mechanical completion workflow.
- Preparation: Comprehensive examination of design drawings, P&IDs as well as the scope matrix.
- Check Check: There is the verification of the system with all the checklists (piping, electrical, instrumentation).
- Integrity Testing: Pressure tests, flushing and cleaning procedures are executed.
- Punch List Management: Development, monitoring and approval of any outstanding matters.
- Documentation & Sign-Off: The issue of the Mechanical Completion certificate, which confirms the readiness of the system commissioning and supplying the entire MCD to the client.
Under which circumstances do you require piping and mechanical completion services?
The services will be compulsory at the major milestones of the project:
- Pre-system commissioning: This is the precondition of all pre-commissioning.
- After piping fabrication or installation, to certify the quality of the new installation.
- In the repair or retrofit of a ship, ensure that the systems that have been replaced or modified are sound.
- In new vessel construction projects, to identify the hand-over phase is identified between construction and testing.
Conclusion
Piping & Mechanical Completion Services are the key to successful, certified and safe transition of construction to operation. With the experience of Sun Marine Engineering in the validation of mechanical systems and the strict marine quality control process, you will ensure that your marine and industrial systems are constructed properly and will be in good conditions to serve.
Contact Sun Marine Engineering to provide effective and quality Piping and mechanical completion services in Singapore.

