KEMANALYSIS

In practice, flanges are found that demonstrate various faults in the contact surface to the gasket. Whether they constitute se­vere damage depends upon the impact on the locally present surface pressure.
For instance, the following faults can be detected:

• Unevenness in the flange caused by corrosion (planar ero­sion and/or pitting corrosion)
• Scratches that run from the inside to the outside, e.g. caused by cleaning the flange using scrapers or brushes that are harder than the flange material.
• Depressions in the outer area of the sealing strip, caused by setting tools during the assembly or dismantling of the gasket.
• Partial indentation points in the centre of the sealing sur­faces.
• and much more.

KemAnalysis facilitates an estimation of this situation. The con­nection between the deformation and applicable surface pres­sure is established by visualising the unevenness as a com­pression in the graphite layer and simultaneously illustrating the surface pressure by means of pressure-sensitive paper.

KemAnalysis is assembled in the same manner as a normal gasket. The special coating securely holds the measuring de­vice together and protects the sensitive measurement paper against chemical attack. The analysis can then begin immedi­ately. Either by means of a purely visual estimate or with the aid of a software-supported surface analysis.