Professional And Efficient! Sharing The Repair Process Of The Inline Pressure Controller
Sep 17, 2025| Our company provides repair services for the Inline Pressure Controller-a core component of aviation ground refueling systems.
The repair is carried out according to a standardized process: "Complete Cleaning – Problem Identification – Seal Inspection – Comprehensive Renewal – Real-Time Testing." The entire process focuses on key steps to ensure the equipment is restored to optimal performance and aviation fuel supply safety is guaranteed.
Step 1: Precise Detection, Identifying the Core Issue
Upon initiating the repair, our team first conducts troubleshooting using professional equipment:
After disassembly, key components were thoroughly inspected. It was found that the main piston seal had aged, the diaphragm was partially damaged, and there were scratches and slight corrosion on the mating surface.
All our engineers have over 5 years of experience in aviation equipment maintenance and have collectively repaired more than 300 controllers of the same series. With a fault diagnosis accuracy rate of 98%, they provide clear direction for subsequent repairs.
Step 2: Standardized Repair, Tackling Key Issues
Repairs are carried out step by step in accordance with the process, ensuring compliance with aviation maintenance standards:
Professional Cleaning: Cleaning impurities from the valve body channels, main piston chamber, and mating surfaces, with pretreatment of corroded areas to prevent impurities from affecting sealing performance.
Seal Replacement: Using main piston seals that are consistent with original specifications and resistant to fuel corrosion. Specialized tools are used for precise installation to ensure seamless contact between the seal and the piston, with an elastic recovery rate of over 95%, fundamentally resolving seal failure issues.
Step 3: Focused Testing, Ensuring Performance Compliance
After repairs, multiple rounds of verification are conducted, with a focus on the "Main Piston Seal Test":
Main Piston Seal Test,Pressure Accuracy Calibration,Overall Functional Verification
After-Sales Support: One-Year Warranty, Full Support
After completion of the repair, our team provides a one-year warranty covering key components such as the main piston seal and repaired mating surfaces. We also offer on-site training for customers, guiding them on daily inspection methods for the main piston seal (e.g., regularly checking for oil leakage on the seal surface, sampling seal elasticity every 6 months).
This repair process fully demonstrates our standardized capabilities and professional experience in the field of aviation ground equipment maintenance. In the future, we will continue to ensure the safety of aviation fuel systems through precise repairs and reliable after-sales service.


