The dosing module (product number 5.45177) from DT Spare Parts is an important component of the exhaust gas cleaning system, as it makes it possible for nitrogen oxide emissions to be reduced by up to 90 per cent. The dosing module individually injects the water-urea mixture (AdBlue) in compressed form into the exhaust system.
The quantity that is injected depends on the engine speed and vehicle load. AdBlue is made up of 32.5 per cent high-purity urea and 67.5 per cent demineralised water.
Exhaust gas cleaning through SCR technology (selective catalytic reduction) reduces nitrogen oxide emissions. For this process, the reducing agent AdBlue is injected into the exhaust tract. When this mixture is exposed to heat, ammonia is produced, which converts the nitrogen oxide emissions into nitrogen (N₂) and water (H₂O).
When the dosing module is replaced, all the associated hoses and cables must also be replaced. It is furthermore important to make sure that the cables and electrical plugs are clean and securely attached.
For more information on DT Spare Parts contact Truck & Bus Parts on +353 1 409 8200.