The 3- way catalysts are used for waste gas purification of λ=1 – engines. This helps to reduce Carbon Monoxide (CO), Formaldehyde (HCHO) and Nitrogen oxide (NO), but only if the engine runs within the  λ –window i.g. in a stoichiometric relation with an oxygen content of 0% in the exhaust gas.  

Following basic reactions take place:
2 CO + O₂ →2 CO₂
HCHO O₂ → CO₂ + H₂O
2 NO → N₂ + O₂
2 NO₂ →N₂ + 2O₂

We offer several types of housings. In principle, the housings differ depending on the installation location. The catalyst can either be installed into an exhaust pipe or into the head of a silencer or a heat exchanger. The advantage of the integrated installation is lower costs.
Generally, catalysts have a proportionally long service life and therefore do not have to be especially accessible. Since the 3-way catalysts have to achieve reduction rates of up to 95%, insertion racks cannot be installed. Because of the higher reduction rate, 3-way catalysts have to be dimensioned larger. With the aid of the latest 3D-CAD.technology we can always find solutions for very complicated installation conditions.
We strictly abide to the TA-Luft-values, but if necessary, can also deliver catalysts designed to meet the stricter maximum values of i.e. Switzerland.