WELDED TANKS

API 650 & AWWA D100 STANDARDS

OceanSi Welded Storage Tanks are designed and built for structural integrity, long service life, and safe, efficient operation across the toughest industrial and offshore environments.
Each tank is precision-engineered to meet international standards such as API 650, AWWA D100, and NFPA 22, providing a cost-effective storage solution for water, fuel, and chemical applications.

Our welded steel tanks are fabricated under strict quality control, using high-pressure welding systems and protective coatings that ensure resistance to corrosion and harsh environmental conditions.
From design to commissioning, OceanSi delivers tanks that perform reliably, meet every industry standard, and exceed your expectations.

Built to Global Standards

OceanSi tanks are manufactured in compliance with major international standards recognized across the United States and worldwide:

API 650 Tanks – for oil, fuel, and process fluids stored at atmospheric pressure
AWWA D100 Tanks – for potable and non-potable water storage
NFPA 22 Tanks – for fire water tanks and emergency response systems

Each type of tank we produce combines structural integrity, corrosion resistance, and certified safety standards for critical operations.

Our tanks are designed for longevity, reliability, and optimal performance under varying environmental conditions.

Welded Tanks for Oil & Gas, Chemical Industry 1

AWWA D 100 & NFPA 22

Welded steel tanks built to AWWA D100 for water and non-hazardous liquids, and NFPA 22 for fire protection systems.

Welded steel tanks manufactured to API 650 for safe storage of oil, fuel, water, and other atmospheric pressure liquids.

API 650

Precision Fabrication and Testing

At OceanSi, tank fabrication is a controlled process — from steel plate preparation to final inspection.

We employ CNC cutting, automated welding, and non-destructive testing to ensure accuracy and compliance.

Every tank system undergoes hydrostatic testing and visual inspection to verify its strength and weld quality.

Core features include:

Cathodic protection systems to prevent internal and external corrosion
Protective coatings and linings for extreme environmental conditions
Pressure vessel tanks for high-pressure and process applications
Custom tank fabrication for offshore and land-based projects
Fully integrated tank coating systems and inspection programs

Our storage tank fabrication process adheres to ASME, API, and AWWA standards for precision and safe, efficient operation.

Corrosion Resistance and Durability

In harsh offshore storage or coastal environments, corrosion is one of the greatest threats to performance.

That’s why OceanSi uses corrosion-resistant tanks with multi-layer protective coatings, advanced cathodic protection, and specialized paint systems formulated for marine welded tanks and industrial storage tanks.

These systems ensure long-term protection in high-salt, high-humidity, and temperature-variable conditions — making OceanSi tanks a proven, cost-effective choice for reliable storage performance.

Application and Storage Solutions

OceanSi tanks support a wide variety of applications, including:

Water storage tanks for treatment and distribution systems
Fuel storage tanks and oil storage tanks for industrial facilities
Chemical storage tanks for processing and containment
Fire water tanks for NFPA 22-compliant protection systems
Pressure vessel tanks for high pressure operations

Each storage solution is customized to your project’s footprint, operational goals, and required safety standards.

WATER & WASTEWATER

OIL & FUEL STORAGE

CHEMICAL STORAGE

AGRICULTURE

Choose OceanSi

Certified for API 650, AWWA D100, NFPA 22, and ASME Section IX
Proven offshore tank manufacturer and storage tank manufacturer Dubai
Full-service steel tank fabrication and tank welding services
Designed with cathodic protection systems and protective coatings
Built for safe and efficient operation in any climate
Tested through non-destructive testing and hydrostatic verification
Backed by custom engineering, installation, and maintenance support

OceanSi delivers offshore storage tanks and industrial tank systems that set the benchmark for safety, reliability, and performance.
When precision matters, trust the tanks that are built to international standards and designed for a lifetime of service.

BENEFITS YOU CAN COUNT ON

ENGINEERED FOR EXTREME CONDITIONS

OceanSi tanks are fabricated to perform reliably in the most challenging environments. Whether exposed to corrosive saltwater offshore, fluctuating temperatures in industrial settings, or rigorous defence applications, our tanks maintain structural integrity and operational excellence.

COMPLIANCE WITH RIGOROUS STANDARDS

We adhere strictly to recognized industry standards, including AWWA D100, API 650, and NFPA 22, ensuring that every tank meets demanding safety and quality requirements for fluid storage in critical applications.

VERSATILITY AND PRECISION MANUFACTURING

From robust welded tanks tailored for heavy industrial use to versatile configurations for rapid deployment, our manufacturing processes are adaptable to your project’s precise specifications and operational needs.

OPTIMIZED FOR OPERATIONAL EFFICIENCY

Designed with maintenance and inspection in mind, our tanks minimize downtime and reduce lifecycle costs, supporting continuous and safe operation in high-stakes environments.

PROVEN PERFORMANCE IN KEY INDUSTRIES

Trusted by leading operators in oil and gas, offshore platforms, defence, and industrial sectors, OceanSi tanks deliver consistent and dependable storage solutions where failure is not an option.

Get a Free Quote

Get in touch with OceanSi for a fast and tailored quotation. We’re ready to support your project.