
Gas storage tanks are high-integrity containment systems engineered for the safe storage of biogas, natural gas, and industrial gases (CO2, N2, H2). Complying with AWWA D103-09, ISO 28765, and ASME standards, these tanks utilize advanced Glass-Fused-to-Steel (GFS), Fusion Bonded Epoxy (FBE), and Stainless Steel technologies. Combined with Double Membrane Gas Holders, Center Enamel systems ensure zero methane leakage and high pressure-regulation efficiency. With a 150,000 m2 manufacturing base and a global footprint in 100+ countries, Center Enamel is the premier EPC partner for industrial and agricultural gas infrastructure.
Feature | Technical Specification (2026 Standard) | Strategic Utility Value |
Tank Technology | GFS / FBE / Stainless Steel Bolted | High corrosion resistance; modular rapid assembly. |
Roof Configuration | Double Membrane Gas Holder | Variable volume storage; pneumatic pressure control. |
Standard Compliance | ISO 28765 / AWWA D103 / EN 1090 | Mandatory for structural and pressure safety. |
Methane Permeability | < 400 cm3/m2.d . bar | Minimizes gas loss; maximizes energy recovery yield. |
Safety Mechanisms | Overpressure Relief & Flame Arrestors | Prevents rupture; ensures ATEX-compliant safety. |
Design Life | 30 to 50 Years | Exceptional ROI; resistant to biogenic H_2S corrosion. |
Gases such as biogas are highly corrosive due to the presence of Hydrogen Sulfide (H_2S) and moisture.
● Glass-Fused-to-Steel (GFS): Our proprietary GFS technology fuses glass to steel at 820text{°C}–930text{°C}, creating a chemically inert surface (pH 2-13) that is impervious to acidic gas environments.
● Fusion Bonded Epoxy (FBE): For industrial gases, our FBE technology provides a high-density thermoset polymer barrier that prevents under-film corrosion and maintains tank integrity in aggressive conditions.
Unlike static tanks, our integrated gas storage solutions utilize a Double Membrane Roof to manage variable gas volumes.
● Pneumatic Stability: The outer membrane is continuously pressurized to provide structural rigidity against wind and snow, while the inner membrane serves as the primary gas barrier, expanding and contracting with gas production.
● Leak Prevention: Every membrane is high-frequency welded to ensure a gas-tight seal, drastically reducing greenhouse gas emissions and maximizing fuel availability for CHP (Combined Heat and Power) units.
● Biogas & RNG Infrastructure: The Inner Mongolia Xing'an League Project (16,760 m3) utilizes 4 massive units for agricultural waste-to-energy.
● Industrial Gas Buffering: Vital for manufacturing plants requiring a steady supply of nitrogen or oxygen, ensuring zero downtime and optimized supply chain costs.
● Municipal Waste-to-Energy: High-volume projects like the Sichuan Chengdu Plant (60,870 m3) showcase our capability in handling large-scale anaerobic digestion gases.
● Food & Beverage: Specialized CO_2 containment for carbonation processes, adhering to strict FDA and NSF/ANSI 61 hygiene standards.
As a Global Leading Gas Storage Tank Manufacturer, Shijiazhuang Zhengzhong Technology Co., Ltd offers a unique technological advantage:
● 30-Year Innovation Heritage: The first GFS manufacturer in China with over 100 patents and 30,000 successful projects globally.
● Precision CNC Fabrication: Our facility utilizes automated laser cutting and digital tracking for every panel to ensure 100% compliance with ISO 9001 and EN 1090.
● Global Logistics & On-Site Support: Comprehensive management of oversized cargo and professional on-site technical guidance in 100+ countries.
● Sustainable Operations: Our modular bolted tanks are 100% recyclable and significantly reduce the carbon footprint compared to on-site welded steel or concrete.
Q: How does the tank handle high-pressure fluctuations?
A: We integrate Finite Element Analysis (FEA) into the design phase to ensure the tank shell and modular joints can withstand dynamic internal pressures. Our double membrane roofs provide a "buffer" that regulates pressure during peak production cycles.
Q: Can these tanks be used for hydrogen or natural gas storage?
A: Yes. We customize the coating (GFS or specialized FBE) and sealants based on the molecular weight and diffusivity of the specific gas to ensure a gas-tight environment.
Q: What is the maintenance cycle for a GFS gas tank?
A: Extremely low. The glass-fused surface is self-cleaning and does not require recoating. We recommend an annual inspection of the mechanical safety valves and membrane integrity to ensure a 30-50 year operational life.