Johnson Matthey DPF-CSF Catalysed Soot Filter
This is a passive system containing a filter coated with catalyst. It requires higher exhaust temperatures than the CRT® to regenerate reliably but is more compact.
These passive systems are suitable for use with a range of non-road machinery, engine power ranges and engine emission levels. It depends partly on how hard the engine is working during the normal operation of the machine as this affects the exhaust gas temperature which needs to be above a certain level for 50% of the time for these systems to regenerate reliably. The other factor is the balance of NOx to particulate level in the exhaust gas, which is often determined by the certified emissions level of the engine. The CSF system has a filter coated with catalyst. This system needs higher exhaust temperatures than the CRT® to regenerate reliably but is more compact.
In the UK Johnson Matthey is represented by BISAF Ltd (www.bisaf.co.uk)
This product is certified by the Energy Saving Trust Non Road Mobile Machinery scheme