What Are DNV Containers?
DNV containers, also known as offshore containers, are specialised cargo units designed and certified to withstand extreme conditions typically encountered in offshore environments such as oil rigs, gas platforms, and marine vessels. These containers adhere to DNV 2.7-1 standards, developed by Det Norske Veritas (DNV)—a globally recognised authority in risk management and quality assurance for offshore structures.
Unlike standard ISO containers, DNV-certified containers are engineered for superior safety, durability, and environmental resistance. They are tailored for repeated use in harsh offshore conditions, including exposure to saltwater, heavy wind, and mechanical shocks during lifting and transportation.
Key Features of DNV Containers
1. Structural Integrity
DNV containers are constructed using high-strength corten steel, designed to resist corrosion, deformation, and fatigue. They undergo rigorous non-destructive testing (NDT) and load testing to ensure safety under extreme conditions.
- Reinforced corner castings
- Heavy-duty lifting pad eyes
- Load-bearing flooring systems
- Certified weld seams and joint structures
2. Safety and Compliance
All DNV containers meet the requirements of:
- DNV 2.7-1: Offshore containers
- EN 12079: Offshore containers and associated lifting sets
- IMO/MSC Circulars: Maritime safety standards
Each container is accompanied by a Certificate of Conformity, Lifting Test Certificate, and Material Traceability Report, guaranteeing transparency and regulatory compliance.
3. Environmental Resistance
These containers are coated with marine-grade epoxy paints that offer long-term protection from salt, humidity, and UV radiation. Additionally, weather-sealed doors, ventilation louvres, and drainage holes ensure that contents are protected against environmental ingress.
Types of DNV Containers
1. DNV Cargo Containers
Used for general cargo, these include:
- DNV 20ft and 10ft containers
- Half-height containers for bulkier or heavier loads
- Dry goods containers with optional insulation
2. DNV Refrigerated Containers (Reefers)
Designed for temperature-sensitive goods such as perishable foods, chemicals, or medical supplies. They feature:
- Thermal insulation
- Integrated refrigeration units
- Temperature monitoring systems
3. DNV Tank Containers
These are engineered to transport hazardous liquids and chemical substances. They are compliant with IMDG, ADR, and RID regulations, and include:
- Pressure relief valves
- Level gauges
- Corrosion-resistant linings
4. DNV Workshop Containers
Mobile offshore workshops fitted with:
- Built-in tool cabinets
- Electrical systems
- Ventilation and lighting
- Fire suppression systems
5. DNV Accommodation Modules
These containers are equipped to function as temporary living quarters, offices, or control rooms, featuring:
- Air conditioning
- Fire & gas detection systems
- Sanitation and plumbing
- Noise and vibration insulation
Applications of DNV Containers
DNV containers are indispensable in sectors that operate under extreme environmental constraints. Some major application areas include:
1. Offshore Oil & Gas Industry
Used extensively for transporting equipment, tools, and hazardous materials to and from offshore rigs and floating production systems.
2. Marine Logistics
DNV containers are used aboard ships for secure cargo storage, especially where ISO containers fail to meet offshore operational standards.
3. Renewable Energy Sector
Wind farms and offshore solar installations require specialised containers to house control systems, tools, and backup batteries.
4. Military & Defence
The military uses DNV containers for secure transport, communication hubs, and mobile field clinics in remote or maritime areas.
5. Disaster Relief and Emergency Response
Due to their mobility and durability, DNV accommodation and medical units are deployed for rapid humanitarian response.
Advantages of Choosing DNV Containers
1. Global Standard Compliance
By adhering to international safety and quality standards, DNV containers ensure seamless customs clearance and cross-border shipping approvals.
2. Enhanced Safety
The use of DNV-certified lifting sets, anti-slip flooring, and secured door mechanisms reduces the risk of injury and loss.
3. Cost Efficiency
Though the initial cost may be higher than standard containers, longer life cycles, lower maintenance, and minimal failure rates result in total cost savings.
4. Customisation Options
Manufacturers offer tailored solutions with:
- Internal shelving and storage racks
- Explosion-proof electrical fittings
- Fireproof insulation
- Soundproofing
5. Resale Value
Due to their certified quality, DNV containers maintain a high resale value and enjoy consistent demand in the secondary market.
DNV Container Inspection and Recertification
To ensure ongoing safety and performance, DNV containers must undergo periodic inspections and recertification:
- Annual Visual Inspection: Checks for structural damage, corrosion, and seal integrity.
- 5-Year Thorough Inspection: Includes load testing, weld crack detection, and certification renewal.
Certified inspectors issue recertification documents, which must be retained for audit and compliance purposes.
Leading Manufacturers and Suppliers
Several global companies specialise in manufacturing and supplying DNV containers. Trusted providers include:
- CIMC Offshore
- Modex
- TLS Offshore Containers
- HOYER Group
- OEG Offshore
Each supplier offers bespoke engineering, 24/7 offshore support, and logistics assistance, making them essential partners for major offshore projects.
Selecting the Right DNV Container
When choosing a DNV container, key factors to consider include:
- Load capacity requirements
- Type of materials stored or transported
- Destination climate and operating conditions
- Space and dimension constraints
- Certifications needed for the destination region
A proper needs assessment will help in sourcing the most cost-effective and operationally suitable container for the task.
Conclusion
DNV containers represent the pinnacle of offshore cargo safety and performance. Their robust design, strict compliance protocols, and versatile applications make them the container of choice for operations that cannot afford compromise—especially in sectors like oil & gas, maritime transport, and renewable energy.
Their compliance with DNV 2.7-1 standards ensures maximum safety, even under the harshest environmental conditions. For companies seeking secure, long-term, and reliable storage or transport solutions, DNV-certified containers deliver unmatched value and peace of mind.