How long will the service life of the air compressor cylinder be replaced?

The recommended service life of air compressor air tanks is generally 10 years, but the actual replacement needs to be determined based on test results and the type of air tanks., the specific analysis is as follows:

1. Basis for recommended service life

1. Design standards and experience
   As a pressure vessel, the design life of gas tanks is usually determined based on factors such as material fatigue and corrosion rate. At present, the recommended service life of mainstream gas tanks (such as carbon steel) on the market is 10 years, and this standard has formed an industry consensus.
2. Balancing security risks and costs
   More than 10 years later, the risk of leakage or explosion in the gas storage tank has increased significantly due to factors such as material aging and increased corrosion. Although some companies may extend service life through enhanced maintenance, the balance point between safety risks and maintenance costs usually points to a 10-year replacement cycle.

2. Determination conditions for actual replacement

1. Regular test results
   • within 5 years: The Quality and Technical Supervision Bureau mainly verifies pressure gauges and safety valves, and the tank body does not need to be pressurized for testing.
   • more than 5 years: Comprehensive inspections such as water pressure testing need to be carried out on the tank to assess its pressure bearing capacity and structural integrity.
   • extended use: If the gas storage tank is more than 10 years old but passes the test every year, it can continue to be used; if the test fails, it must be scrapped and replaced immediately.
2. Differences in gas storage tank types
   • simple pressure vessels(Volume ≤1 cubic meter, pressure ≤10 kg):
     It is exempted from inspection within the recommended service life, but it is recommended to replace it directly after expiration rather than re-testing.
   • stationary pressure vessel：
     Due to the high replacement cost, companies usually choose to apply for inspection. If you pass the test, you can continue to use it, and if you fail to pass the test, you will be scrapped.

3. Maintenance recommendations to extend service life

1. daily maintenance
   • drainage: Drain water at least once a day to prevent stagnant water from corroding the tank.
   • check for leaks: Observe the air intake process, pipelines and tanks for leaks to ensure that the pressure meets the standard.
   • Clean the surrounding environment: Avoid corrosive gases or fluids from contacting the tank.
2. regular maintenance
   • Calibration attachment: Verify pressure gauges and safety valves annually to ensure they work normally.
   • Inspection of tank: Check the tank body for rust and damage every month, and check the firmness of the weld seam and the aging of the seal ring every year.
3. Records and archives management
   • Properly keep the product quality certificate, test report and other documents of the air storage tank to provide a basis for subsequent testing and replacement.