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  ISO 9001:2008

Monitoring (CEM)

These applications are unique in that stack gas is very wet and hot. You must maintain temperatures above the dew point during extraction at the sample probe and transport to the sample conditioning cabinet.

The problem areas start with the transition from the sample probe to the tubing bundle. While the sample maintain temperatures are generally in the range of 150 to 180ºC the stack gas may be 200 to 350ºC when it is extracted. The extraction temperatures can quickly exceed the maximum allowable temperature for the process tube and many electric tracers so it must be cooled before it is transported. Because stack gas does not have a high specific heat providing adequate cooling is almost never a problem but it must be considered in the design of the system.

STACKPAK™ CEM sample and probe support bundles
TRACEPAK® heated tubing bundles