Proventia DEF Mixing Unit

Urea deposits in exhaust pipes

It is a known fact that when an SCR process uses DEF (diesel exhaust fluid), it can cause urea deposits in exhaust pipes, especially in non-road applications using airless DEF injectors. With airless urea dozers DEF spray droplets are larger in diameter, which might lead to wall wetting and film formation on exhaust pipe inner surfaces, causing deposits when local temperatures are very low.

The solution to the problem - Proventia DEF Mixing Unit

Proventia has developed a Proventia DEF Mixing Unit (patent pending) to eliminate wall wetting and to evenly distribute NH₃ in the shortest possible pipe length. Proventia has extensively tested its DEF Mixing technology in worst case conditions with no sign of wall wetting or urea deposit.

Delivers even NH3 distribution Improves the overall performance of the SCR Suitable to be used with all urea dozers Suitable for Stage 3B and Stage 4 and Tier 4i and Tier 4 Final exhaust systems