Custom turnkey leak test system for A/C coils Custom turnkey leak test system for A/C coils

A manufacturer of HVAC components and systems required an automated leak testing system for two unique A/C coil parts. 

We engineered an automated turnkey leak test system utilizing the hard vacuum leak test method. By using a mixture of helium and nitrogen as a tracer gas, the customer used less helium. The leak test system achieved maximum efficiency, throughput, and flexibility through a custom-tooled, L-shaped test chamber.

  • Custom tooled "L" shaped vacuum test chamber accommodates two separate, unique test parts
  • Chamber features include front loading opening, manual vertical sliding door, and manually operated slide-out loading shelf
Automotive A/C Systems & Components
Leak testing A/C coils
Production Volume:
Medium to high
Tracer gas:
Helium 95%, Nitrogen 5%
Controller System:
Leak Test Method:
Helium hard vacuum
Leak Rate:
5.3 x 10-5 atmcc/sec Helium Nitrogen mix
Leak Reject Limit:
5.6 x 10-5 atmcc/sec Helium
~29 seconds per part
Cycle Time:
50 seconds, including load/unload
Test Pressure:
295 PSI on helium leak test, 550 PSI on proof test
Portable cart
Custom tooled "L" shaped vacuum test chamber
Leak Detector:
LDS3000 Mass Spectrometer
Pumping System:
Three-stage roots blower package

No accessories available.

Product Brochures

Comprehensive Leak Test Solutions

Reference Materials

What Should I Include In My Leak Test System Request for Proposal (RFP)
Presentation: A Process for Selecting and Implementing the Optimum Leak Test Method

Application Notes

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


Production Leak Testing Solutions Showcase