Service Life of Metal Corrugated Pipes: The general service life of metal corrugated pipes is 10-15 years, but the actual lifespan is affected by the following factors:
1. Material: Stainless steel (such as 304, 316) corrugated pipes have strong corrosion resistance and a service life of over 15 years; carbon steel corrugated pipes may have a shorter service life of 8-10 years in harsh environments (refer to GB/T 12777-2019 standard).
2. Working Environment: High temperature, highly corrosive media, or frequent vibration will accelerate aging. For example, when used in the chemical industry, the service life may be reduced by 20%-30%.
3. Pressure and Temperature: Long-term overpressure (exceeding 1.5 times the design pressure) or temperature fluctuations (>150℃) will significantly reduce the service life.
Measures to Extend the Service Life of Metal Corrugated Pipes:
1. Regular Inspection: Inspect the surface for corrosion, deformation, or leakage every 6 months, focusing on welds and corrugated areas.
2. Correct Installation: Avoid twisting or excessive stretching; allow 10%-15% expansion allowance during installation.
3. Protective Treatment: In corrosive environments, an anti-corrosion coating can be applied, or sacrificial anode protection can be used.
Precautions for Use:
1. Avoid Mechanical Damage: Handle with care during transport, preventing hard objects from impacting the corrugated parts.
2. Media Compatibility: Ensure the transported medium is compatible with the pipe material. For example, liquids with high chloride ion content require 316L stainless steel.
3. Emergency Handling: If a localized leak is detected, immediately stop the machine, temporarily repair with special clamps, and replace the leak as soon as possible.