WEAR INDICATOR FOR A CIRCUIT INTERRUPTER EXHAUST CONTROL DEVICE

摘要

An exhaust control device (10) includes a wear indicator (90) disposed within a housing of the exhaust control device. The wear indicator (90) is arranged to be exposed to a flow of exhaust gas through the exhaust control device (10). The wear indicator has a first observable state indicative of remaining useful life of the exhaust control device. The wear indicator is responsive to a flow of exhaust gas through the exhaust control device to assume a second observable state indicative of the exhaust control device having reached the end of its useful life.