In addition to this there is a range of different filter sizes that can be used depending on the exhaust gas flow rate from the engine and the required back pressure limit. Once the size and type of filter is specified, it then has to be packaged on the machine in order to give least impact on operation.
Johnson Matthey said that they can also give detailed installation advice and that the company has many application specific designs available. They recommend on product type and installation based on individual engine/machine/application/oper ation requirements.
The manufacturer was keen to stress that its filter systems have been independently tested and shown by VERT to reduce particulate count by 99.9%.
The DPF systems are designed specifically for off-road machines using robust stainless steel housings and vibration-reducing mountings. Electronic systems monitor back pressure and control regeneration.
The company said it believed that it was a world leader in the control of vehicle emissions and had supplied tens of thousands of DPF systems for on- and non-road applications. The non-road DPFs were backed by a warranty and technical support.
The Johnson Matthey DPF range offers filter sizes, filter types and regeneration methods to cover most non-road applications. The manufacturer said that the modular design enabled easy inspection and servicing. The monitoring and control systems were designed to minimise demands on the operator. Service intervals are typically the same as for the engine.
Johnson Matthey DPF kits were designed to replace the existing silencer in a machine. The company said that DPF could be installed quickly, maintaining the appearance of the machine and saving on installation costs.
