Kalrez庐 Spectrum鈩� 7275 Double Seal Life in Chlorine Dioxide Service

Case Study

Chlorine dioxide is a strong oxidizing gas that finds many uses as bleaching agent and disinfectant, being a more effective and safer biocide than other sources of chlorine. Most of the production of chlorine dioxide is used at paper mills for pulp bleaching

A North American based paper mill had to perform frequent repairs in a pump handling chlorine dioxide in water. According to the reliability engineer, the incumbent non-black FFKM typically failed within 5 months of installation because of the extremely aggressive nature of the stream. With replacement of the seals by Kalrez庐 7275, the pump seal life was extended to more than 12 months, removing the pump from the 鈥渂ad actors鈥� list and into a regular yearly maintenance.

Kalrez庐 Spectrum鈩� 7275, a specialty non-black perfluoroelastomer product, is made with a k8娱乐 patented crosslinking system, and is suggested for seal applications where high resistance to oxidizing and reactive media is required

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