External Floating Roof Tanks for Crude Oil & Refined Oil Storage

Product Structure

• Floating Roof Assembly: A buoyant, weather-tight deck—typically of pontoon or double-deck construction—that floats on the stored product.

• Open-Top Cylindrical Shell: A vertical, tiered steel body reinforced with a “wind girder” at the top to maintain circularity under heavy wind loads.

• Primary & Secondary Seal System: High-performance flexible seals installed around the roof perimeter to bridge the gap between the floating deck and the tank wall, ensuring vapor retention.

• Rolling Ladder: A self-leveling, hinged ladder that adjusts its angle to provide safe personnel access to the roof deck regardless of the liquid level.

• Roof Drain System: A flexible internal pipe or jointed hose system that safely channels rainwater from the roof deck to the exterior of the tank.

• Support Legs: Adjustable mechanical legs that hold the roof at a specific height during maintenance or when the tank is empty.

Product Advantages

• Superior Evaporation Reduction: By eliminating the “vapor space,” these tanks reduce product loss by up to 95% compared to fixed-roof tanks, directly increasing profitability.

• Enhanced Fire Safety: The lack of a vapor-rich head space significantly lowers the risk of lightning-induced ignition or internal explosions.

• Environmental Compliance: Dramatically lowers Volatile Organic Compound (VOC) emissions, helping facilities meet strict environmental air quality standards.

• Massive Capacity Scalability: Specifically designed for “Big Oil” applications, allowing for diameters that can store hundreds of thousands of barrels in a single vessel.

• Weather Resilience: The robust floating deck is engineered to handle heavy rainfall and snow loads while remaining buoyant and stable.

Material & Specifications

Feature	Specification
Shell & Floor Material	High-tensile Carbon Steel (Q235B, Q345R) or ASTM equivalents
Floating Roof Type	Single-Deck Pontoon or Double-Deck (High Buoyancy)
Seal Type	Mechanical Shoe Seal or Liquid-Mounted Resilient Foam Seal
Standard Compliance	API 650 (Appendix C), GB 50341, or equivalent global codes
Corrosion Control	External Epoxy/Polyurethane coatings and internal anti-static linings

Technical Parameters

• Working Temperature Range: -40°C to +90°C (Standard); specialized seals available for high-heat crude storage.

• Design Pressure: Atmospheric pressure.

• Volume Range: 10,000m³ to 150,000m³+ (Fully customizable diameters).

Application Scenarios

• Crude Oil Terminals: Large-scale “tank farms” at shipping ports and pipeline junctions for bulk crude storage.

• Petroleum Refineries: Intermediate storage for raw crude and finished high-volatility products like gasoline and jet fuel.

• Strategic Reserves: National-level emergency oil storage facilities requiring long-term containment with minimal loss.

• Chemical Logistics: Storage for volatile industrial solvents and light chemicals at maritime distribution hubs.

More Products