CHALLENGE

  • High pressure leak test
  • Mix and boost helium gas to minimize cost
  • Correlate refrigerant leak to helium leak and validate for the customer
  • Heavy compressor on a power free roller conveyor

Solution

  • Helium hard vacuum leak test system
  • Low cost horizontal cylindrical chamber with dual doors and integration to production line roller conveyor
  • Simple operator loading with pallet
  • Gas booster and custom software to mix and boost test gas
  • Integrated air proof test to 300 psia
  • Calibrated leak with master part to calibrate and validate the test
  • Enclosed pumping system to reduce noise

PERFORMANCE SPECIFICATIONS

  • Leak Rate Reject Limit: 1.0 x 10-4 mbarL/sec with diluted helium
  • Test Cycle Time: Less than 3 minutes per cycle