Underground LPG Storage Tanks – Engineered for Safety, Efficiency, and Long-Term Reliability
Product Overview
Our underground LPG storage tanks are engineered for safe, efficient, and space-saving liquefied petroleum gas storage. Designed and manufactured to international standards (ASME Section VIII,GB 150), these horizontal buried tanks deliver superior safety performance, reduced land footprint, and lower operational costs compared to above-ground alternatives.
With capacities ranging from 5m³ to 200m³, our underground LPG tanks serve LPG filling stations, industrial facilities, commercial complexes, residential communities, and resort projects across the Middle East, Southeast Asia, Africa, South America, and Central Asia.
Why Choose Underground LPG Tanks?
Underground LPG storage represents a strategic upgrade from conventional above-ground tanks, addressing three critical buyer priorities: safety compliance, land cost optimization, and long-term operational economy.
|
Advantage Category |
Underground lpgTank |
Above-Ground lpgTank |
|---|---|---|
|
Safety Performance |
Earth insulation provides natural fire protection; reduced explosion risk; gas disperses quickly if leaked |
Exposed to fire risk; requires larger safety distances; higher visible hazard profile |
|
Land Usage |
Minimal surface footprint; tank area can be landscaped or used for parking |
Requires full surface area + safety buffer zones |
|
Thermal Stability |
Constant underground temperature reduces evaporation loss by 30-50% |
Exposed to temperature extremes; higher boil-off rate |
|
Aesthetic Impact |
Virtually invisible above ground; ideal for resorts, urban areas |
Visible industrial structure; zoning restrictions |
|
Service Life |
20+ years with proper cathodic protection and coating |
15-20 years; weather exposure accelerates corrosion |
|
Theft/Vandalism |
Buried installation prevents unauthorized access |
Exposed valves and fittings vulnerable to tampering |
Technical Specifications
| Specifications | Technical Parameters |
|---|---|
| Volume Range | 5m³ – 200m³ (5,000L – 200,000L) |
| Main Material | Q345R |
| Design Pressure | 1.61 MPa – 1.77 MPa |
| Test Pressure | ≥2.22 MPa |
| Design Temperature | -20°C to +50°C |
| Design Service Life | ≥20 years |
| Anti-corrosion System | 3-layer PE / epoxy coating + sacrificial anode / impressed current cathodic protection |
Note: Specifications above are for reference only. Custom capacities, pressures, and dimensions available upon request. All tanks designed for 1.77 MPa design pressure (1.6 MPa available for low-pressure applications).
Application Scenarios
Our underground LPG storage tanks serve diverse industries and applications across global markets. Each solution is engineered to meet specific operational requirements and regulatory standards.
| Application Scenarios |
Typical Capacity |
Key Benefits |
| LPG Auto Gas Stations | 20m³ – 100m³ (multiple tanks for larger stations) | Reduced safety setbacks, more space for dispenser islands, better urban zoning compliance |
| Industrial & Commercial Central Gas Supply | 10m³ – 50m³ | Uninterrupted supply, lower delivery frequency, no visual impact on property aesthetics |
| LPG Bottling & Filling Plants | 30m³ – 200m³ | Higher storage density, safer working environment for plant personnel |
| Resorts, Hotels & Residential Communities | 5m³ – 30m³ | Completely hidden installation, landscaped surface area, enhanced safety for guests/residents |
| Industrial Raw Material Storage | 50m³ – 200m³ | Secure on-site inventory, reduced supply chain risk, process continuity |
Packaging&Shipping
- Small lpgTanks (≤20m³): Container shipping with wooden support frames; protective wrapping on machined surfaces; valve covers for protection
- Large lpg gas storage Tanks (>20m³): Bulk / RORO shipping; wax coating or protective wrap for exposed surfaces; reinforced lifting points
- Accessories: Wooden crates for valves, gauges, and instruments; separately packaged with detailed packing list
FAQ
Q1: What is the maximum capacity you can manufacture?
A: Our standard range is 5m³ to 200m³ for underground horizontal lpg tanks. For larger capacities, we can provide multi-tank battery solutions or mounded lpg storage tank configurations.
Q2: Can you customize the lpg gas tanks design for our specific requirements?
A: Yes, we offer full customization including: capacity, design pressure, material grade, nozzle configuration, accessory packages, and special coating systems. Our engineering team will work with you to optimize the design for your application.
Q3: What is the design life of an underground LPG tank?
A: With proper installation, cathodic protection, and maintenance, our tanks have a design life of 20+ years. Many tanks remain in service for 30+ years with regular inspection and maintenance. Installation & Maintenance
Q4: How deep should an underground LPG tank be buried?
A: Typically, the crown of the tank should be 0.6 to 1.2 meters below ground level. Exact depth depends on local climate (frost line), traffic loads, and regulatory requirements. We provide detailed installation guidelines with each tank.
Q5: Do you provide installation guidance?
A: Yes, every tank comes with a detailed Installation & Operation Manual. We also offer optional on-site installation supervision by our technical engineers, as well as remote video guidance during installation.
Q6: How often does the tank need inspection?
A: External visual inspection of accessible components should be performed annually. Internal inspection and pressure testing are typically required every 5-10 years depending on local regulations. Cathodic protection systems should be checked every 6-12 months.
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