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CO2 Pipe System Renewal at Chan May Port, Vietnam
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SVC Marine provides CO2 pipe system renewal, fixed fire-extinguishing pipe repair, steel pipe fabrication, pipe bending, onboard welding, NDT attendance, painting and ship repair services for vessels calling Vietnamese ports, anchorages and shipyards.
This project page records a CO2 pipe system renewal job at Chan May Port, Vietnam. The original work included transferring 3/4 inch steel pipes from workshop to port, removing damaged CO2 pipes, welding new pipes, pipe bending, U-bolt assembly, NDT testing and painting after completion.
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CO2 Pipe System Renewal in Vietnam
The fixed CO2 fire-extinguishing system is a critical safety system onboard vessels. Damaged, corroded, leaking or wasted CO2 pipes can affect fire-fighting readiness and may be rejected during inspection, annual survey, class attendance, port state control or drydock survey.
SVC Marine provides CO2 pipe system repair and renewal services for commercial vessels in Vietnam, including bulk carriers, general cargo vessels, container vessels, tankers, MPP vessels, offshore support vessels, tugboats and workboats.
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Project Scope at Chan May Port
During this project at Chan May Port, the damaged CO2 pipe sections were removed and renewed with new steel pipes prepared from workshop. The repair team completed pipe fitting, welding, bending, support installation, NDT checking and painting before final completion.
Original project work included:
Transfer steel pipes 3/4″ t3 from workshop to port
- Transferring 3/4 inch steel pipes from workshop to port
- Inspecting damaged CO2 pipe sections onboard
- Removing damaged pipes from the CO2 pipe system
- Preparing new steel pipe sections for renewal
- Pipe bending and fitting onboard
- Welding new CO2 pipe sections
- Installing U-bolts and pipe supports
- NDT test after welding where required
- Surface preparation and painting after completion
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Typical CO2 Pipe Renewal Scope
The actual repair scope depends on the pipe size, damaged area, access, system layout, class requirement, vessel schedule and available working window. A typical CO2 pipe renewal job may include:
Removing damaged pipes, and then welding new pipes
- Initial inspection of damaged or corroded CO2 pipe sections
- Checking pipe size, route, supports and connection points
- Marking defective pipe sections for removal
- Removing old pipes, clamps, supports or damaged fittings
- Fabricating new pipe sections at workshop or onboard
- Pipe cutting, bending, threading, fitting or flange preparation where required
- Onboard welding by marine welders
- Installing U-bolts, clamps and pipe supports
- NDT, leak test, pressure test or blowing test where required
- Primer and painting after repair
- Photo records and repair completion report
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Why CO2 Pipe Condition Matters
CO2 pipes are part of the vessel’s fixed fire-extinguishing system. If the pipe line is blocked, holed, corroded, disconnected or badly supported, CO2 discharge may not reach the protected space correctly during an emergency.
Common problems found on CO2 pipe systems may include:
Bending Pipes, assembly U-bolts, NDT Test and Painting
- External corrosion on pipe surface
- Wasted pipe wall thickness
- Leaking pipe joints
- Damaged pipe supports or missing U-bolts
- Loose or vibrating pipe sections
- Blocked or contaminated pipe lines
- Damaged nozzles or branch lines
- Paint breakdown and rust formation
- Class or surveyor comments during inspection
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Pipe Fabrication, Bending and Welding
SVC Marine provides pipe fabrication and onboard pipe renewal work with marine pipe fitters and welders. For CO2 pipe systems, accurate pipe routing, proper bending, clean fit-up, suitable support and good welding quality are important for safe and reliable completion.
Our pipe repair work may cover:
- CO2 fire-fighting pipe renewal
- Fire main pipe repair
- Sea water pipe repair
- Ballast pipe repair
- Bilge pipe repair
- Air pipe repair
- Deck service pipe repair
- Hydraulic pipe repair
- Engine room pipe renewal
- Pipe support and clamp renewal
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NDT, Testing and Painting After Repair
After CO2 pipe renewal or welding, inspection and testing may be required depending on the repair location, system requirement and surveyor instruction. The testing method should be confirmed before work starts so that the repair team can prepare the pipe joints and access properly.
Post-repair checking may include:
Video showing us CO2 pipes system before renewal.
Watching CO2 Pipes System after renewal
- Visual inspection of renewed pipe sections
- Dye penetration testing or other NDT where required
- Leak test or pressure test where applicable
- Blowing through of CO2 lines where required
- Checking pipe supports, U-bolts and clamps
- Checking pipe route and clearance
- Surface preparation, primer and painting
- Final photo record and completion report
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Safety Notes for CO2 Pipe System Work
Fixed CO2 fire-extinguishing systems are safety-critical systems. Repair work should be carried out only after the system is made safe, isolated where required and confirmed by the vessel’s responsible officers.
Before cutting, removing or welding CO2 pipes, the vessel should confirm the system condition, protected space status, cylinder bank safety, release control safety, hot work permission, ventilation, fire watch and access condition. The repair team must not compromise any safety interlock, release arrangement or fire protection function.
After repair, the system should be checked before returning to normal service. Any class, flag, fire safety service company or surveyor requirement should be followed according to the vessel’s actual case.
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When Should Owners Request CO2 Pipe Repair?
Shipowners and managers should consider CO2 pipe inspection or renewal when the vessel has:
- Corroded or wasted CO2 pipe sections
- Damaged fire-fighting pipe lines
- Class or surveyor comments on CO2 system condition
- Pipe leakage or visible holes
- Missing or damaged pipe supports
- Blocked or suspected blocked CO2 line
- Dry dock or annual fire-fighting system inspection requirement
- Port state control concern related to fixed fire-extinguishing system
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Service Coverage in Vietnam
SVC Marine provides CO2 pipe system renewal, pipe fabrication, onboard welding, NDT attendance and ship repair services at selected Vietnamese ports, shipyards and anchorages.
Service coverage may include Chan May, Da Nang, Dung Quat, Quy Nhon, Vung Ang, Son Duong, Hon La, Cua Lo, Nghi Son, Hai Phong, Hon Gai, Cam Pha, Cai Lan, Vung Tau, Phu My, Cai Mep, Ho Chi Minh City area, Long An, Vinh Tan and other selected locations in Vietnam.
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Frequently Asked Questions
Does SVC Marine provide CO2 pipe system renewal in Vietnam?
Yes. SVC Marine provides CO2 pipe system renewal, fire-fighting pipe repair, steel pipe fabrication, pipe bending, onboard welding, NDT attendance and painting for vessels in Vietnam.
When should CO2 pipes be renewed?
CO2 pipes should be renewed when they are wasted, corroded, holed, leaking, badly supported, damaged or rejected during fire safety inspection, class survey or port state control inspection.
Can SVC Marine fabricate and weld CO2 pipes onboard?
Yes. SVC Marine can fabricate, bend, fit and weld selected CO2 pipe sections onboard or at workshop, depending on pipe size, access, safety condition, hot work permission and vessel schedule.
Is testing required after CO2 pipe renewal?
Testing may be required depending on the system, repair location and surveyor instruction. Possible checks include visual inspection, NDT, leak test, pressure test, blowing test and final function-related confirmation where applicable.
What information is needed for a CO2 pipe repair enquiry?
The owner or manager should provide vessel name, port, ETA, photos, pipe size, damaged location, estimated renewal length, drawing if available and any class or fire safety requirement.
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.