A further advantage is that filter cleaning intervals will be extended, as long as the temperature of the gas passing through it is generally over 225°C (440°F). For this reason, catalytic converters based on knitted wire are ideal for cooking appliances where the hot air is recirculated, such as rapid-cook ovens. The wire must be made from Fecralloy which consists of 74% iron, 21% chromium and 5% aluminium. Fecralloy is chosen because when heated a layer of aluminium oxide forms on its surface, which serves to protect the iron against oxidation and also provides a key for the coating to adhere to. Knitted wire substrates made from Fecralloy therefore meet the hygiene requirements for applications involving food.
In addition to Knitted Wire, we currently offer three other substrate options for use in a variety of catalytic converters, depending on your requirements. These substrates are: