LNG Tank Independent Third-Party Inspection and Full-Process Manufacturing Supervision
Source: | Author:Anna Huang | Published time: 2026-03-16 | 77 Views | 🔊 Click to read aloud ❚❚ | Share:
We specialize in full-process quality control for marine and industrial LNG tanks, from document review, material inspection, on-site manufacturing supervision to key milestone acceptance, providing professional third-party assurance for project safety, compliance and delivery.

Project Overview

This project covers full-process independent inspection and quality supervision for 5 sets of 227m³ LNG tanks, conducted at FRCIT in Zhangjiagang, Jiangsu.

As an independent third-party inspection organization, we provide on-site supervision and quality control throughout the entire manufacturing process to ensure compliance with relevant standards and technical requirements.


Scope of Services

Document Review & Compliance Verification

  • Systematic review of GA drawings, WPS, welder qualifications, material certificates, and inspection plans

  • Ensure complete and compliant technical documentation before production

Material Inspection & Traceability

  • Incoming inspection of stainless steel plates, heads and key components

  • Verification of material certificates and full-chain material traceability

Manufacturing Process Supervision

  • On-site witness of shell rolling, longitudinal seam welding, stiffener fabrication and assembly

  • Real-time quality monitoring and process compliance control

Key Milestone Inspection & Acceptance

  • Hold-point inspection for welding quality, dimensional accuracy and appearance

  • Complete and standardized inspection records and acceptance reports

Project Achievements

Through full-process independent supervision, we ensure standardized manufacturing procedures, controllable quality and complete documentation for LNG tanks, providing reliable support for customer project delivery and subsequent operation.


Location:Zhangjiagang FRCIT, Jiangsu, China


Workshop Overview


Workshop Overview


Head of project delivered

SS plate rolled & shaped for inner vessel

SS plate rolled & shaped for inner vessel

SS plate rolled & shaped for inner vessel


SS plate rolled & shaped for inner vessel

SS plate shaping in progress

Stiffening rings assembling & weldingin progress


Stiffening ring partly fabricated

Stiffening ring weld seam condition


Inner Vessel Longitudinal SeamCondition Checking


Inner Vessel Longitudinal SeamCondition Checking


Inner Vessel Longitudinal SeamCondition Checking


Inner Vessel Longitudinal SeamCondition Checking



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