Sensor Technologies



Extend the Life of Hot Process Pipes:

The Challenge

Monitoring process pipes for corrosion, erosion, or stress during operation at temperatures of 250-300°C is impractical with most conventional sensors. Some of these pipes have corrosion, erosion, or stress that must be inspected frequently or monitored continuously. In addition to the safety issue, the cost of an interruption of the plant process to replace or repair degraded piping is of major concern to plant operators.

How can degraded high temperature pipes be monitored while in service? How can monitoring these pipes reduce costs? Can labor cost be reduced? Can the corrosion information become part of a reliability based maintenance program?

The Solution

FOX-TEK high temperature fiber optic FT sensors are readily bonded onto the outside surface of degraded process pipes. With proper selection of the installation location, these sensors give measures of pressure, temperature, stress, or wall thinning. With a FOX-TEK monitor in the system, more frequent updates to a database of piping health are possible. This leads to fewer replacements during shutdowns, and consequently, shorter shutdown periods. With sensor leads brought from any remote or inaccessible location to an easy-to-access monitoring station, periodic or continuous readouts are made with FOX-TEK monitors.

Summary of Benefits

  • Supports reliability based maintenance
  • More complete system health database
  • Additional process parameters monitored
  Cost Savings
  • Extended operating life of components
  • Less down time required for maintenance
  • Fewer parts replaced during shutdown
  • Less labor required for inspection
  • Critical areas checked on demand without process interruption
  • Less likelihood of failure in service
  • Reduced requirement for hand inspection in inaccessible areas
  • Lower probability of contamination from leaks