Flexstation Leak Test system for auto A/C hose with open chamber Flexstation Leak Test system for auto A/C hose, angled view

A global supplier of automotive components required a small footprint leak test system with tooling to support a complex part shape and multiple types of tests, including an inner and outer tube leak test, pressure sensor functional test, and a flow/occlusion test. 

We engineered a flexible solution using our FLEXSTATION helium leak test system featuring a custom leak test chamber with custom tooling blocks to accommodate two unique test parts. With chambers featuring minimal test volume and hard interface tooling, the paths made in the aluminum precisely fit the complex shape of the part, reducing dead space and speeding test cycles. The system utilized the helium hard vacuum leak test method with airproof test, occlusion test and functional pressure sensor test.

  • Custom aluminum test chamber designed with two interchangeable tooling blocks that mount to the test part. 
  • FLEXSTATION software configuration to accommodate a variety of test fixture and test sequence options
Application:
Leak testing A/C hose
Industry:
Automotive A/C Systems & Components
Production Volume:
Medium to high
Tracer gas:
Helium
Controller System:
FLEXSTATION
Leak Test Method:
Helium hard vacuum
Leak Rate:
Outer: 0.01 cc/min at 3.0 MPa helium; Inner: 2.0 cc/min at 3.0 MPa helium
Test Pressure:
3.6 MPa helium
Cycle Time:
> 30 seconds
Configuration:
Portable cart
Chamber:
Two custom machine billeted chambers on carts
Leak Detector:
LDS3000
Pumping System:
Rough vacuum pump, two stage roots blower package


Application Notes

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

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

Videos

Production Leak Testing Solutions Showcase