SCR Anti Crystal

SCR Anti Cristal

The AdBlue dosing module is responsible for injecting precisely measured amounts of urea solution into the exhaust stream, where it reacts with NOx in the SCR catalyst to produce nitrogen and water vapour. The metering accuracy required is exact – too little AdBlue and NOx conversion falls short of the certified standard; too much, and unreacted ammonia can be released. The component achieving this precision sits directly in the path of a fluid that, if contaminated or low-purity, crystallises and destroys the very mechanism responsible for dosing it.

HEPU® AdBlue dosing modules are manufactured to OE specification, matching the metering precision and electronic control characteristics required for reliable SCR system operation.

Use the HEPU® parts catalogue to find the correct AdBlue dosing module for your application.

Product Data

Technical specifications

Key features

  • OE-matched metering precision
  • Electronic control matched to OE specification
  • Built for AdBlue's specific material demands
  • Heating element integration where fitted

Benefits

  • Maintains certified NOx conversion
  • Prevents the crystallisation failure cycle
  • Avoids cascading fault codes and power restriction

Applications

  • Passenger cars

Sample references

  • UR2003
  • UR2021

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