Quality Begins with Details: Inside TLS Functional Container Quality Control Process

In the ever-changing and challenging industrial environment, product quality has always been the cornerstone of customer trust. From offshore wind power platforms to desert energy bases, from hazardous areas in chemical plants to accommodation spaces on ocean-going vessels—every customized TLS functional container is a reliability-focused product born under strict quality control.

At TLS, we understand that true quality is not just the “Pass” label at the final inspection stage, but a commitment embedded in every step of the process—starting from the moment a steel plate enters our facility, through every stage of production, with meticulous attention to detail and accountability.

1. Rigorous Material Selection: Quality Control from the Source
Every TLS functional container starts with carefully selected materials:

• Steel Structure Materials: Compliant with international standards (e.g., EN10204, ASTM), complete with material certificates and traceable identification numbers.
• Electrical and Fan Components: Sourced from reputable suppliers with CE/UL certification.
• Special-Purpose Containers: For example, Zone 1/Zone 2 positive pressure explosion-proof containers require certification and verification for explosion-proof electrical components, sealing elements, and fireproof insulation materials.

All incoming materials are subject to physical inspection—dimensions, thickness, and material identification—along with document verification. Any non-conforming materials are rejected and re-procured.

2. Structural Fabrication
Welding Quality Control

• Welders must hold valid welding certifications.
• All main load-bearing structure welds undergo non-destructive testing (e.g., ultrasonic testing UT or radiographic testing RT).

Any welds that fail to meet standards are repaired until compliant.

Sheet Metal and Cutouts

• Fabrication strictly follows design drawings; all embedded components, cable entries, and equipment mounting panels must have dimensions and elevations verified.
• Multi-step cross-check inspections ensure installation accuracy.

3. Electrical and System Installation: Functional Safety Verification
Cable Installation and Identification

• Cables are laid according to electrical design drawings, with identification tags at both ends of every cable.
• Terminal blocks, cable trays, and socket positions are verified by quality inspectors.

System Commissioning

• Positive pressure system fan performance, air exchange rate, and pressure retention time are fully tested and recorded.
• For energy storage containers, BMS linkage simulation and battery system energization tests are conducted.
• For liquid cooling systems, pressure tests, pump operation checks, and leak inspections are performed.

4. Environmental Protection Testing (Optional)
Depending on application scenarios, TLS offers specialized testing services:

• Complete container water tightness testing (mainly for offshore or high-humidity environments)
• Positive pressure leakage and retention performance testing (for explosion-proof area equipment containers)

5. Final Factory Inspection
Before delivery, the quality control department performs a comprehensive final inspection, including:

• External appearance and label integrity
• Dimensions and weight compliance with drawings
• Full functionality of electrical equipment
• Completeness of accessory lists, nameplates, packing records, and documentation

Only after passing all checks and signing the relevant conformity certificates can the container be shipped.

6. Quality Documentation
TLS maintains a complete quality record system:

• Each project has a dedicated quality control file covering materials, fabrication, welding, electrical, commissioning, and testing.
• Every product has a unique serial number for issue traceability and warranty support.
• Customer or third-party inspection (e.g., BV, DNV, SGS) is fully supported, including on-site witnessing and acceptance.

Conclusion: Trust Built on Details, Quality Forged by Expertise

From material selection to final delivery, from design drawings to on-site deployment, TLS maintains strict control over every detail—continuously optimizing manufacturing processes and enhancing system reliability. This unwavering dedication to quality has earned TLS the trust of global customers and ensured the successful deployment of our functional containers in critical projects worldwide.
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TLS Offshore Containers / TLS Special Containers is a global supplier of standard and customised containerised solutions. 
Wherever you are in the world TLS can help you, please contact us.

Keywords：#Quality Control,#Functional Containers,#Material Inspection,#Welding Certification,#Electrical Installation,#Positive Pressure System,#Leak Testing,#Factory Acceptance Test (FAT),#Traceability,#Offshore Applications
 

Written by Snowy

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