Hydrogen cylinder inspection cycle

Basic Inspection Cycle for Hydrogen Cylinders
The inspection cycle for composite material hydrogen cylinders depends primarily on the usage scenario and material properties. Generally, vehicle-mounted hydrogen cylinders require a comprehensive inspection every 3 years, while the inspection cycle for stationary hydrogen cylinders may extend to 5 years. Inspection content includes key indicators such as cylinder integrity, sealing performance, and valve condition.

 

Key Factors Affecting the Inspection Cycle

Usage Frequency: Hydrogen cylinders that are frequently filled and discharged require shorter inspection intervals.

Environmental Conditions: High temperatures, humidity, or corrosive environments accelerate material aging.

Transportation Method: Hydrogen cylinders that are frequently moved are more prone to wear and tear than stationary ones.

Historical History: Cylinders that have been subjected to impacts or abnormal use require earlier inspection.

 

Special Circumstances for Users
Even if the inspection cycle has not yet arrived, the following conditions require immediate discontinuation and inspection: visible scratches or dents on the cylinder body, valve leakage, or abnormal noises. During daily use, avoid direct sunlight and mechanical impacts; store in a well-ventilated and dry environment.