Helium Hard Vacuum Leak Test System for Refrigeration Assemblies Helium Hard Vacuum Leak Test System for Refrigeration Assemblies Helium Hard Vacuum Leak Test System for Refrigeration Assemblies Test chamber detail

Aerospace equipment company required a custom leak test system for multiple models of refrigeration assemblies. Test requirements include a nitrogen proof and gross leak test prior to the helium test. We engineered a custom turnkey leak test system with custom programmed controller software to automate a leak test process that required custom test recipes for multiple leak test methods, parts, and leak rates.

  • Leak test chamber is a 48" DIA X 86" L belt-driven actuating horizontal chamber operating on sliding rails to enclose the part shelf and seal to the bulkhead door
  • Custom bulkhead is machine-polished to ensure proper sealing and equipped with multiple custom ports and feedthroughs
  • Safety measures include a chamber enclosure fence – during chamber actuation, actuation stops if light curtain barrier is breached
  • High pressure booster for nitrogen proof test of the refrigerant circuit increases the pressure from 80 psig to 625 psig
  • Custom system controller with PC interface, including ethernet connection to customer's network
Refrigeration Components
Leak testing refrigeration components
Production Volume:
Tracer gas:
Nitrogen, air, and helium
Controller System:
Custom controller with PC interface
Leak Test Method:
Gross, proof, Helium hard vacuum
Leak Rate:
Variable rates dependent on part being tested
~ one part per hour
Cycle Time:
< one hour
Fixed installation turnkey system
48" DIA X 86" L horizontal cylindrical stainless steel test chamber
Leak Detector:
Inficon LDS3000

No accessories available.

Product Brochures

Comprehensive Leak Test Solutions

Application Notes

Technical Note A: Production Leak Testing: What, Why and How

Reference Materials

Presentation: A Process for Selecting and Implementing the Optimum Leak Test Method