A global aerospace and industrial products manufacturer specified unique requirements for a leak test system designed to test a high-pressure oxygen test rig. Requirements included a high-pressure proof test, sliding tray, helium leak detector, and specialized vacuum chamber with cladding for safe operation at high pressures. Test requirements included high helium pressure (2,200 psig), high leak test sensitivity, and chamber sealing interface.
We engineered a custom helium hard vacuum leak test system with precision tooling and high surface finish to meet the leak test sensitivity requirements. The system also incorporated a high purity nitrogen vent and high capacity gas booster.
| Application: | Leak testing heat exchangers in high pressure oxygen test rig |
| Industry: | Aerospace |
| Tracer gas: | Helium |
| Controller System: | PC-based LabView |
| Leak Test Method: | Helium hard vacuum |
| Leak Rate: | Helium leak tested to 1 x 10-8 atm-cc/sec |
| Test Pressure: | Designed to maintain the set pressure of at least < 0.2 psia, 5 psia, 8 psia, and 14.7 psia, while the test rig tests the “unit under test” between sea level ambient pressure (14.7 psia) and rough vacuum (< 0.2 psia). |
| Configuration: | Portable cart |
| Chamber: | 18″ DIA x 30″ D stainless steel horizontal cylinder |
| Door Configuration: | Hinged door with pneumatic clamps |
| Vacuum Rating: | Capable of pumping down the chamber to achieve better than 1 Torr (<0.2 psia) |
| Finish: | Glass bead blast interior and exterior |
| Leak Detector: | Inficon Modul 1000 |
