A global energy engineering company required a customized air intake filtration solution for a 125MW GE 6F.03 heavy-duty gas turbine project in Japan.
The project was located in a coastal industrial area where the equipment needed to operate under high humidity, salt mist, heavy rainfall, and high dust conditions. The air intake filter house had to meet strict requirements for corrosion resistance, structural strength, filtration efficiency, and long-term outdoor reliability.
After completing the GE supplier qualification process, CLET was selected to provide the complete manufacturing solution for the elevated air intake filter house and supporting steel structure, demonstrating its capability in supplying high-standard gas turbine auxiliary systems for international power projects.
Project Location:
Wakayama, Japan
Supporting Equipment:
125MW GE 6F.03 Heavy-Duty Gas Turbine
Solution Provided:
Elevated Gas Turbine Air Intake Filter House System
Service Mode:
Integrated Design & Manufacturing Solution
Supply Scope:
Air intake filter house, supporting steel structure, maintenance platform, access ladder, and related structural components.
Coastal Environment Requirements
The project was located in a coastal industrial area with high humidity, salt mist, and frequent rainfall. The elevated air intake system required excellent corrosion protection, waterproof sealing, and long-term outdoor durability to ensure stable operation.
Complex Elevated Structural Design
The air intake filter house consisted of large filtration modules and high-strength steel supporting structures installed at elevated positions.
The system required detailed structural analysis, wind load calculation, and seismic performance verification to ensure safe operation under various environmental conditions.
Strict International Quality Standards
The project required compliance with GE’s global supplier quality standards, including engineering documentation, manufacturing process control, welding quality, dimensional accuracy, and final inspection procedures.
Only suppliers with strong engineering capabilities and strict quality management systems could meet the qualification requirements.
Overseas Installation Requirements
Due to the high labor costs and limited construction time in Japan, the customer required maximum factory prefabrication, dimensional verification, and modular shipment to reduce onsite welding and installation work.
1. Integrated Air Intake Filter House & Steel Structure Manufacturing
CLET provided a complete air intake filtration solution, including both the filter house and supporting steel structure.
The system includes:
The filter house and steel structure were designed and manufactured under unified standards, ensuring precise interface matching and smooth onsite installation.
2. Coastal Corrosion Protection & Weather-Resistant Design
Based on the Japanese coastal operating environment, CLET optimized the equipment structure and surface protection system:
The customized solution ensures reliable performance in high humidity and salt mist environments.
3. Factory Pre-Assembly & Modular Export Delivery
To reduce onsite installation workload, the air intake filter house and steel support structure were fully prefabricated and inspected at CLET’s factory.
The delivery process included:
After arriving at the project site, the equipment could be quickly installed through modular assembly, significantly reducing onsite adjustment and welding requirements.
4. GE Quality Qualification & International Project Capability
CLET successfully completed the supplier qualification process and established manufacturing capability for GE 6F series gas turbine intake systems.
Throughout the project, CLET provided:
The complete quality control system ensured smooth project execution and reliable delivery.
Qualified International Supplier for GE Gas Turbine Projects
Through this project, CLET successfully demonstrated its capability to manufacture GE 6F series gas turbine air intake systems and strengthened its position as a reliable international supplier.
Reliable Performance Under Coastal Industrial Conditions
The completed air intake filter house achieved required standards in corrosion resistance, dust protection, structural stability, and outdoor durability, ensuring reliable operation in Japan’s coastal environment.
Reduced Overseas Installation Costs
Factory prefabrication and modular delivery significantly reduced onsite construction requirements, minimizing high-altitude installation work, welding operations, and project installation time.
Expanded Global Gas Turbine Auxiliary System Capability
This project enhanced CLET’s experience in GE gas turbine air intake solutions and provided a proven delivery model for future international gas turbine projects.
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