Exhaust Gas Recirculation (EGR) Orifice Tube Assembly

The EGR orifice tube assembly is a section of the EGR system that contains the metering orifice and a port on either side of the metering orifice that the differential pressure feedback EGR sensor connects to. This can be contained within one component (such as a cold tube) or in some applications can be across multiple components (such as across an EGR valve and cold tube).