Outlet Sampling System for Aftertreatment System

An exhaust gas aftertreatment system comprising:

• an outlet housing body;
• an outlet housing fitting;
• and
• an outlet sampling system comprising:
• a sampling ring defining a sampling ring cavity and a plurality of sampling ring inlet apertures, the sampling ring apertures configured to receive a portion of exhaust gas from the outlet housing body and provide the portion of exhaust gas to sampling ring cavity, and
• a connector defining a connector cavity and comprising a connector floor flange, the connector floor flange comprising:
• a connector floor flange upstream portion configured to cause exhaust to flow in a direction towards the outlet housing body,
• a sensor boss contiguous with the connector floor flange upstream portion, the sensor boss defining a sensor aperture, and
• a connector floor flange downstream portion contiguous with the sensor boss and configured to cause exhaust gas to flow in a direction away from the outlet housing body and provide exhaust gas to the outlet housing fitting.