IRIS (Internal Rotary Inspection System) is a measuring system to measure the exact thickness of both ferrous and non-ferrous tubes of exchangers, airfins, coolers, boilers and other similar equipment.

Most exchangers are sensitive for internal and/or external corrosion (pitting). Many other inspection methods only give a rough idea of the remaining wall thickness, do not locate the damage and are unable to measure a small decrease in tube thickness which the IRIS system does.

• IRIS can be applied on almost each material
• Exact determination of location of pitting/corrosion
• Small changes in thickness measurable 
• No negative effect on results caused by external items like fins or baffles
• Measurement produces nominal value for wall thickness of pipe
• No calibration pipes needed
• IRIS can also be used in steamdrums