* Performance test: whether the exhaust volume, exhaust pressure, power, energy efficiency ratio, etc. meet the standards.

* Safety test: pressure vessel strength test, safety valve opening and closing pressure, electrical safety (grounding, insulation resistance, etc.).

* Operation test: continuous load operation (usually 4-8 hours), check whether the vibration, noise, and temperature rise are normal.

* Air tightness test: no leakage in pipelines, joints, and gas tanks (commonly used soapy water or nitrogen leak detection).

* Control system verification: whether the automatic start and stop, pressure regulation, and alarm functions (such as overpressure and overheating) are sensitive.

* Performance does not meet the standard: insufficient exhaust volume, power ratio exceeds the standard.

* Safety hazards: safety valve failure, pressure vessel weld defects.

* Noise/vibration exceeds the standard: usually due to poor rotor dynamic balance or unstable installation.

* Oil leakage/air leakage: aging of seals or improper assembly.

* Document Verification: Certificate, test report, instruction manual.

* Visual Inspection: No transportation damage, no loose fasteners.

* Trial Run: Verify that the no-load starting current is within the normal range.

* Performance Test: Ensure stable pressure output and normal temperature during load operation.

* Functional Check: Confirm proper operation of the automatic drain valve and air filters.

* Repair Validation: Re-test the specific components that were repaired—e.g., if the airend is replaced, verify discharge volume and vibration levels.

* Critical Component Check: Ensure correct installation and alignment of key parts such as bearings, seals, and couplings.

* System Performance Test: The unit must operate continuously for 24 hours without abnormalities before being approved for acceptance.

* Daily Inspection: Record operating parameters (pressure, temperature, current) every week.

* Regular Inspection: Entrust a third party to test energy efficiency and compressed air quality every 6-12 months.