Russian
Project Overview
GLM Factory was contracted to deliver custom-manufactured hemispherical heads and related components for a 4-unit, 11,585 m³ spherical tank project in Africa. The project required strict adherence to international standards, precise dimensional control, and seamless on-site installation support to meet the client’s operational timeline and safety requirements.
Technical Challenges & Solutions
1.Large-scale precision manufacturing
- Challenge: The 11,585 m³ spherical tanks demanded hemispherical heads with diameters exceeding 28 meters, requiring exceptional dimensional accuracy and structural integrity to withstand high-pressure storage conditions.
- Solution: We employed CNC-controlled plate forming and multi-point calibration to ensure the spherical curvature of each head maintained a tolerance of ±1.5 mm, fully complying with ISO 529 and ASME VIII Div.1 standards.
- 2.On-site assembly and welding support
- Challenge: The remote African construction site required efficient on-site assembly of segmented heads, with strict quality control for circumferential and longitudinal welds.
- Solution: Our technical team deployed on-site to supervise the assembly process, providing real-time guidance on fit-up, welding procedures, and non-destructive testing (NDT), ensuring all welds met 100% radiographic testing (RT) requirements.
- 3.Logistics and material protection
- Challenge: Long-distance sea and overland transportation risked corrosion and mechanical damage to the large steel components.
- Solution: All heads were treated with a high-performance anti-corrosive primer and secured within custom-engineered steel cradles to prevent shifting during transit, ensuring components arrived in pristine condition for installation.
Key Outcomes & Client Benefits
- Regulatory compliance: All components fully met ISO 529, ASME, and local African industrial safety standards, enabling seamless project certification.
- Operational reliability: The precision-manufactured heads ensured uniform stress distribution, reducing the risk of fatigue failure and extending the service life of the spherical tanks.
- Timely delivery: By optimizing manufacturing and logistics, we delivered all components 10 days ahead of the client’s scheduled installation window, supporting the overall project timeline.
- Cost efficiency: Our one-stop solution for head manufacturing and on-site support eliminated the need for multiple subcontractors, reducing the client’s total project costs by 12%.
Conclusion
This 4 x 11,585 m³ spherical tank project in Africa demonstrates GLM Factory’s capability to deliver large-scale, high-precision pressure vessel components for international projects. By combining advanced manufacturing technology, rigorous quality control, and end-to-end project support, we have established ourselves as a reliable partner for clients operating in challenging global environments.
