Fuel rails

Helium leak test

Leak testing systems for fuel rails

Detect leaks from fuel rails using helium in a vacuum chamber

The helium test as a dry method is ideal for checking fuel rails. The fuel rails are tested at high pressures of > 200 bar and a relatively low permissible leakage rate. An efficient helium recovery system completes the device.

Test object

From practice

Helium vacuum leak test and assembly line for fuel distribution rails (3-, 4- and 6-cylinders)
Technical specifications
  • Effective cycle time: 7 seconds
  • Capacity: 514 parts per hour
  • Test pressure: 10 bar
  • Leak rate: 5 · 10−5 mbar · l/s
Helium Leak Test – fuel Rails
Technical specifications
  • Effective cycle time: 17 s
  • Capacity: 211 parts / h
  • Test gas: 100% helium
  • Leak rate: 1 · 10−5 mbar · l / s
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