NOxBUSTER® DPF + SCR retrofit systems

Proventia NOxBUSTER® DPF + SCR system is the most efficient retrofit emission control system available.

It is a powerful combination of various technologies that effectively eliminates the NOx , PM, CO and HC emissions from on-road and off-road machines. 

The NOxBUSTER® DPF +SCR system offers SCR (Selective Catalytic Reduction) technology for efficient NOx reduction, the concept can be complemented with a Diesel Particulate Filter (DPF) for PM reduction and a Diesel Oxidation Catalyst (DOC) for HC and CO reduction.

  • For on-road and off-road applications 70-450 kW
  • NOx reductions of over 80%
  • PM reductions of over 90% with optional DPF
  • Reliable operation in all applications
  • Application -specific canning and piping available for a variety of bus and truck makes and models
  • Optional heated urea lines and 2 NOx sensors for challenging circumstances
  • Upgrades your on-road vehicle regarding emissions from
    • EURO 3, 4  and 5  to  EURO 6
  • User-friendly with monitoring and service software
  • Cost-effective: about 20 retrofits for the amount spent on one new bus
  • Fully approved systems, e.g. for London's LEZ and Swedish Environmental zones (Miljözon)
  • Proven results from global retrofit projects

How NOXBUSTER® systems work

SCR control unit continuously monitors the amount of NOx in the exhaust gas. Depending on the NOx level an optimal amount of AdBlue® is injected into the exhaust gas stream to reduce NOx. Urea pumps and control systems operate independently, which guarantee operation in all applications. Optional DPF and/ or DOC elements can be integrated to the system to also reduce PM, HC and CO emissions.