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Case study
Temporary boiler tube leak repair in Vietnam
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SVC Marine performed temporary boiler tube leak repair in Vietnam using fabricated stoppers and welding. Our team prepared the stoppers, removed rust and cement around the leaking area, and carried out the appointed fitting and welding work.
For a new boiler leak enquiry, send the fault photographs, boiler particulars, pressure condition and port-call window. SVC’s technicians and welders inspect the agreed area, prepare the repair worklist and identify the checks and permanent repair items required for that boiler.
01
The temporary boiler leak repair job
The historical job addressed leaking boiler tubes with fabricated stoppers. The work record includes preparing the stoppers, clearing rust and cement around the leaking area and welding after preparation. These tasks formed the appointed temporary leak-repair scope.
The original photographs show the stopper fabrication and repair work. The number and dimensions of plugs for another boiler are determined from that equipment’s defect, tube arrangement and agreed repair method. This historical record is separate from the 48-plug Cam Pha boiler job.
02
Define the leaking tube and work boundary
Identify the affected tube or damaged section before selecting a repair. The technicians need the boiler type, maker, tube dimensions, defect location, accessible areas and reported pressure or water-loss condition. Photographs and the relevant drawings help distinguish the leaking section from nearby tubes or pressure parts.
Temporary plugging is a method for isolating a selected leaking tube with suitable stoppers or plugs. Its application depends on the boiler condition, the proposed operating restrictions and the vessel’s technical requirements. Discuss the selected method with the chief engineer and superintendent, including any required Surveyor’s review.
03
Temporary tube plugging worklist
For an appointed temporary repair, the worklist identifies preparation, materials, the fitting/welding tasks and the checks after completion. The exact method is selected for the defect rather than applied automatically from the photographs.
- Inspect the agreed leakage area and identify the affected tube or damaged section.
- Prepare shutdown, cooling and safe access with the vessel’s responsible officers.
- Remove rust, scale, cement or insulation around the appointed repair area.
- Prepare or fabricate suitable tube stoppers against the specified dimensions and material.
- Fit and secure the appointed stoppers at the leaking tube ends.
- Carry out welding or sealing where the agreed repair method requires it.
- Perform the specified leak or pressure-related checks appropriate to the equipment and vessel condition.
- Record the repair photographs, completed tasks, check results and remaining work.
04
Safe boiler condition before attendance
Boiler work requires isolation and a safe pressure and temperature condition. Before repair attendance, the vessel confirms shutdown, cooling, depressurizing, draining, ventilation, access control and hot-work precautions. Our technicians need that condition and the available access confirmed before proceeding.
The work plan covers the affected pressure parts, residual heat, water/steam condition and adjacent operations. Agree the boundary, fire watch and access arrangements with the chief engineer. Do not cut, fit or weld while pressure, temperature or access conditions are unsafe.
The repair method and inspections are selected against the actual equipment, material and required technical acceptance. Technical review or a completed weld does not by itself remove the need for the agreed checks before the boiler returns to service.
05
Temporary repair and the next worklist
Temporary plugging can form an interim leak-control repair while the vessel plans the permanent work. The boiler’s condition, inspected defects and technical requirements determine the operating limits, remaining inspections and next attendance. Keep these items in the handover rather than treating the temporary work as the whole repair programme.
The owner may need tube renewal, workshop repair, pressure-part work, class attendance or drydock. SVC can prepare the permanent repair scope from the findings, drawings and parts required, and identify what can be completed within the next port or yard window.
06
Permanent boiler and related repairs
SVC’s appointed permanent work depends on damage condition, access, materials and technical feasibility. A wider enquiry can include:
- Boiler tube renewal and the associated fitting and inspection work.
- Economizer tube repair or renewal.
- Steam-line repair and renewal of the identified sections.
- Expansion-joint repair or replacement.
- Commissioned pressure-part welding with the specified material and inspection points.
- Removal and reinstatement of the affected insulation.
- Agreed leak tests and functional checks after the repair.
- The technical records and witnessing points required by the owner or Surveyor.
07
When to request boiler inspection
Send an enquiry when the vessel reports steam or water leakage, a pressure drop, abnormal boiler-water loss, suspected tube failure, damaged refractory or cement, economizer leakage, an expansion-joint fault or repeated leak-related alarms. Describe where the defect is and what the vessel has already observed.
Inspection helps define whether the next worklist is temporary plugging, welding, tube renewal, spares, Surveyor attendance or drydock planning. State the current operating restriction and the vessel’s available work window; repair attendance is planned against the actual fault and safe access.
08
SVC repair team and records
Our technicians inspect the commissioned leakage area and discuss the repair method with the chief engineer and superintendent. Our team fabricates the appointed stoppers, plates, pipes or other parts and performs the fitting and welding within the agreed worklist.
The repair file can include photographs or video before, during and after the work, the completed tasks, parts used, tests actually performed, remaining defects and the recommendation for permanent repair. Specify any Surveyor, class or owner’s representative witnessing points before the work begins.
Clear records allow the owner and chief engineer to plan the next repair and parts order from the actual findings. Keep proposed permanent work and unperformed tests separate from the temporary work completed.
09
Boiler repair at Vietnam ports
SVC undertakes appointed boiler, machinery and onboard repair work at selected Vietnamese ports, anchorages and shipyards. Locations for an enquiry include Hai Phong, Hon Gai, Cam Pha, Nghi Son, Cua Lo, Vung Ang, Son Duong, Hon La, Chan May, Da Nang, Dung Quat, Quy Nhon, Nha Trang, Vung Tau, Phu My, Cai Mep, the Ho Chi Minh City area and Vinh Tan.
Confirm the actual terminal or anchorage, port-call window, boarding arrangements, isolation, safe access and hot-work permission in the repair plan. Boiler repair at Son Duong, ship repair at Da Nang and Dung Quat repair provide related port enquiries. See ship repair in Vietnam for the wider worklist.
10
Send the leak and boiler particulars
Send the boiler repair enquiry with the following particulars through SVC’s private repair contact:
- Vessel reference, vessel type and the exact port, terminal or anchorage.
- ETA, ETB, ETD and the available inspection and repair window.
- Boiler maker, type, tube dimensions and specified working pressure, where available.
- Description of the leakage or damage, alarm history and observed operating condition.
- Photographs or video of the leaking area and the relevant drawing.
- Whether the boiler has been shut down, cooled, depressurized and drained.
- The requested scope: inspection, temporary plugging, welding, tube renewal or permanent repair.
- Class, flag, insurer, owner’s superintendent or chief engineer requirements for the appointed repair.
11
Boiler repair questions
Does SVC perform temporary boiler repair in Vietnam?
Our team performs the appointed inspection, tube plugging, stopper fabrication, fitting and welding work, with agreed checks and completion records. Send the boiler defect and port-call details so the temporary or permanent scope can be defined.
What is temporary boiler tube plugging?
It isolates a selected leaking tube with suitable stoppers or plugs. The method, dimensions and materials are selected for the inspected defect and technical requirements. The handover identifies the operating limits and the permanent work still required.
Can the work be done during a port stay?
A port or anchorage work window may be suitable when safe boarding, boiler isolation, cooling, hot-work permission and sufficient time are available. Confirm the equipment condition and proposed repair method before planning attendance.
Is a temporary repair a permanent solution?
Temporary plugging is normally an interim leak-control measure. The boiler may still require permanent repair, tube renewal, further inspection or drydock. The findings and technical requirements determine the next worklist.
What should an owner send for a quotation?
Send the vessel reference privately, port/anchorage, ETA and work window, boiler maker/type, leakage description, photographs or video, pressure condition, drawings and the requested repair. Include isolation/access status and any class or superintendent requirements.
Technical guides for this work
Talk to SVC Marine
Please provide your company details and the vessel requirement or work scope. Acceptance is subject to verification and confirmation by SVC Marine.