Sealing technology manual for the process industry

FKM in the chemical industry FKM is in many cases sufficiently resistant to common or- ganic solvents. Especially in contact with alkaline solutions, the material is sensitive; for this reason, alkaline cleaning process should be evaluated on a case-by-case basis. Due to the variety of possible applications and application parameters, comprehensive technical clarification by our application advisory service is recommended. Products and materials • O-rings made of 70 FKM 37508, 75 FKM 38269 and 75 FKM 180497 • Molded parts made of 75 FKM 37508 and 75 FKM 180497 • Diaphragms made of 75 FKM 180497 IMMERSION RESULTS OF FKM IN DIFFERENT CIP/SIP CLEANING MEDIA SIP, 0.5% HYDROGEN PEROXIDE CLEANERAT +80 °C (+176 °F)/168 H SIP, 2% PERACETIC ACID CLEANER AT +60 °C (+140 °F)/168 H CIP, 4% PHOSPHORIC ACID CLEANER AT +70 °C (+158 °F)/168 H CIP, 2% NITRIC ACID CLEANER AT +80 °C (+176 °F)/168 H CIP, 10% SODIUM HYPOCHLORITE CLEANER AT +40 °C (+104 °F)/168 H CIP, 5% SODIUM HYDROXIDE CLEANER AT +80 °C (+176 °F)/168 H 60 40 20 0 –20 –40 –60 –80 Change in % volume in % elongation at break in % tensile strength in % Download Data sheet 70 FKM 37508 Download Data sheet 75 FKM 180497 Download Data sheet 75 FKM 38269 APPENDIX PRODUCT PORTFOLIO MATERIALS RESISTANCE & PURITY ENGINEERING PLASTICS ELASTOMERIC MATERIALS TECHNICAL FUNDAMENTALS INTRODUCTION 41

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