Technical specification (Customized service is available)
| Testing object | Evaporator and condenser |
| Vacuum pump dimension: | 1200mm*200mm*600mm (L*W*H*) |
| Vacuum pump quantity | 2 (each could accommodate 2 objects) |
| Tracer gas | Helium |
| Pressure for helium leak test | 2.0 Mpa (or lower than 2.0Mpa) |
| Pressure for gross leak test | 3.0 Mpa (or lower than 3.0 Mpa) |
| Leak rate: | 2g/year （R134a） |
| Cycle time | 20s/pcs (including the handling time) |
| Helium recovery rate | ≥98% |
Application:
Evaporator and condenser helium leak detector is mainly designed to deliver gas tightness test for automatic air conditioning evaporator and condenser. But it could also be used to detest the evaporator and condenser for household refrigerator and air conditioning. With the helium leak detector, the air tightness level for testing objects is well guaranteed, and the leakage of horizontal substances (refrigerant) will be well avoided.
In accordance to the basic principle of helium leak detection, we adopt helium, rather than Freon, as the tracer gas. After charging helium into the testing object within vacuum pump, the helium leak detector will be adopted for leak testing. The testing method features high precision and fast detection.
The evaporator and condenser helium leak detector is equipped with two vacuum pumps, and each of them is outfitted with 2 sets of couplings. After placing the testing objects within vacuum pump, and connecting it with the coupling, the door will be closed. After that, a comprehensive array of processes will be automatically delivered, including gross leak test, strength test, evacuating, helium charging, micro-leakage test, helium recovery and etc. The system features fast cycle and high testing precision. Meanwhile, since the system is equipped with helium recovery system, the helium cost is largely saved.
