Leak Testing
Tanks are processed through dedicated leak-testing rooms and/or chambers with approval settings based on our validated experience and customer requirements. This includes a final automated "Go/No-Go" test with a measured leak rate associated with each specific tank. Every test is recorded to a database for part history and traceability.
Sniffing Tracer Gases
- Sniffing with tracer gases using mass spectrometers resolves many issues associated with immersion tests.
Leak Testing: Helium Vacuum Chamber
- Every tank can have a customized program to suit all aspects of a customer’s requirements. In addition, two duplicate systems provide greater throughput capacity and productivity.
- Sniffing with tracer gases using mass spectrometers resolves many issues associated with immersion tests.
Leak Testing: Helium Vacuum Chamber
- Every tank can have a customized program to suit all aspects of a customer's requirements. In addition, two duplicate systems provide greater throughput capacity and productivity.
Details
- This is pass/fail test.
- Part and vacuum chamber pump are tested down to 0 PSIA.
- Part is backfilled with helium to part specification.
- Helium leaking from part is measured using integrated global mass spectrometer.
- Part passes or fails depending on measured leak rate and leak-rate rejection set point.
- Failed parts leave chamber pressurized with helium and are manually sniffed to pinpoint leaks for repair.
Advantages of helium vacuum chamber
- Automated test eliminates opportunities for human error.
- Integrated database uses part serialization to track test history.
- High concentration of helium allows for maximum accuracy.
- Integrated helium-recovery system allows testing with high helium concentrations to be cost-effective.
- Versatile programs can be adjusted to fit any customer-specified PSI limits or leak-rate specifications.
- Chamber has the ability to test large parts at a high level of sensitivity.
- Chamber dimensions are 118" L x 81" W x 62" H.
- Uses a pressure-decay test.
- Uses a 95% nitrogen/5% hydrogen sniff.
Cleaning
Tanks are cleaned utilizing an automated cleaning sequence to ensure maximum reliability. As customers' cleaning requirements in newer products become more stringent, we are continually building new methods into our process to meet these needs.
• Uses automated cleaning stations and dedicated hanging bars.
• Ensures each tank is cleaned the same way every time.
• Ensures that every tank is hung in the best position for cleaning and draining.
• Automated tank-flushing equipment allows for cleanliness validation.
• Tanks are flushed while hung in the same position as they are washed.
• This allows the tank to be accurately flushed to ensure all remaining debris can be extracted for gravimetric evaluation.
• The system runs the extracted material straight to a filter for evaluation.
• This eliminates opportunities to lose some of the captured material, while giving a more accurate measurement of tank cleanliness.
• A separate tank clean-room offers a valuable opportunity for final assembly work on items post-cleaning.
• Ensures each tank is cleaned the same way every time.
• Ensures that every tank is hung in the best position for cleaning and draining.
• Automated tank-flushing equipment allows for cleanliness validation.
• Tanks are flushed while hung in the same position as they are washed.
• This allows the tank to be accurately flushed to ensure all remaining debris can be extracted for gravimetric evaluation.
• The system runs the extracted material straight to a filter for evaluation.
• This eliminates opportunities to lose some of the captured material, while giving a more accurate measurement of tank cleanliness.
• A separate tank clean-room offers a valuable opportunity for final assembly work on items post-cleaning.
