TANK & VESSEL REPAIR SERVICES
Expert Tank & Pressure Vessel Repair dengan Code Compliance
Layanan repair & rehabilitasi untuk storage tank, pressure vessel, dan process equipment. Dari minor leak repair hingga major reconstruction dengan welding expertise, NDT inspection, dan compliance terhadap standar ASME dan API
Tank & Vessel Repair Capabilities
Witanabe memiliki expertise & equipment untuk menangani berbagai tipe repair dari storage tank hingga high-pressure vessel
Storage Tank Repair
Shell plate replacement, bottom plate repair, roof repair, nozzle repair, leak sealing, corrosion protection
Pressure Vessel Repair
Crack repair, bulge correction, flange facing, heat exchanger tube replacement, pressure testing, recertification
Process Equipment Repair
Reactor repair, mixer tank rehabilitation, jacketed vessel repair, agitator shaft straightening, internal coating
Systematic Repair Procedure
Setiap repair project mengikuti standard procedure untuk ensure structural integrity, safety, dan code compliance
Inspection & Assessment
- Visual inspection: Identify damage extent, corrosion pattern, structural defects
- NDT inspection: Ultrasonic thickness test, magnetic particle test, dye penetrant test
- Damage assessment: Determine root cause, evaluate structural integrity
- Repair planning: Method statement, material selection, welding procedure
- Client approval: Scope of work finalization, quotation, timeline
Repair Execution
- Surface preparation: Cleaning, grinding, blasting untuk proper weld adhesion
- Welding repair: Qualified welder dengan WPS/PQR approved procedure
- NDT verification: Radiography, ultrasonic test untuk weld quality
- Pressure testing: Hydro test atau pneumatic test sesuai code requirement
- Coating application: Protective coating untuk corrosion protection
- Documentation: Repair report, test certificates, recertification (if needed)
Welding Expertise & NDT Capabilities
Welding Qualifications
- Certified welders: ASME Section IX, AWS D1.1, API 1104 certified
- Welding processes: SMAW, GTAW (TIG), GMAW (MIG), FCAW
- Materials: Carbon steel, stainless steel, duplex, alloy steel
- WPS/PQR library: Pre-qualified welding procedures untuk common materials
- Special processes: Overlay welding, cladding, hard-facing
NDT Inspection Methods
- Visual Testing (VT): Surface defect detection, weld profile inspection
- Ultrasonic Testing (UT): Thickness measurement, internal flaw detection
- Magnetic Particle Testing (MT): Surface crack detection pada ferrous material
- Dye Penetrant Testing (PT): Surface crack detection pada non-ferrous material
- Radiographic Testing (RT): Weld internal quality verification (optional/by request)
Common Tank & Vessel Repair Cases
Leak Repair
Pinhole leaks, seam leaks, nozzle leaks, flange leaks – welding repair atau composite wrapping
Corrosion Repair
Plate thinning, pitting corrosion, CUI (corrosion under insulation) – plate replacement/overlay
Crack Repair
Stress corrosion cracking, fatigue cracks, weld cracks – proper repair welding dengan PWHT
Deformation Repair
Dents, bulges, out-of-round shells – heat straightening, mechanical straightening, reinforcement
Code Compliance & Standards
Semua repair work dilakukan sesuai dengan international code & standards untuk ensure safety & regulatory compliance
ASME Section VIII
Pressure vessel repair & alteration
API 653
Tank inspection, repair, alteration, reconstruction
AWS D1.1
Structural welding code – steel
ASME B31.3
Process piping repair & modification
Ada Tank atau Vessel yang Perlu Repair?
Konsultasikan kondisi equipment Anda dengan tim kami. Kami provide inspection service, damage assessment, dan repair quotation.
Phone: +62 857-8096-1572 | Email: repair@witanabe.com