Sealing technology manual for the process industry

CIP/SIP MEDIA CONCENTRATION RANGE (%) RESIDENCE TIME (MIN.) TEMPERATURE RANGE Acidic cleaning agents e.g. on the basis of HNO3 0.5 to 3.0 20 to 30 +30 to +80 °C (+86 to +176 °F) Alkaline cleaning agents e.g. on the basis of NaOH 2.0 to 3.0 20 to 120 +30 to +80 °C (+86 to +176 °F) Disinfectants e.g. on the basis of H2 O2 0.3 to 1.0 30 to 60 +25 °C (+77 °F) Acidic disinfectants e.g. on the basis of H2 O2 and HNO3 0.5 to 1.0 20 +25 °C (+77 °F) Alkaline disinfectants e.g. on the basis of H2 O2 and NaOH H2 O2 : 0.5 NaOH: 1.0 to 2.0 30 +80 °C (+176 °F) Sterilization with steam 100.0 20 to 45 +120 to +140 °C (+248 to +284 °F) Examples of possible testing cycles Test methods and possibilities • Sealing tests in conjunction with acids, alkaline solutions and disin- fectants • Separate media supply for valve and seal contamination • Testing of critical applications with superheated steam, cooling water and compressed air supply • Testing of all types of seals in fit- tings and equipment assemblies, such as O-rings, diaphragms, but- terfly valve seals and gaskets as well as molded parts THE ADVANTAGES AT A GLANCE • Demonstration of customized CIP/ SIP processes under real operating conditions • Verified statements concerning re- sistances and reliability of material and seal design • Validation of the seal selection prior to the start of series production • High operational reliability through- out the product life cycle • More efficient production processes • Avoidance of time-consuming and cost-intensive field tests • Testing of measurement instrumen- tation and pump seals • Damage analysis in the event of leakage • Reliable compatibility recommen- dations concerning seals and pro- cess media APPENDIX PRODUCT PORTFOLIO MATERIALS RESISTANCE & PURITY ENGINEERING PLASTICS ELASTOMERIC MATERIALS TECHNICAL FUNDAMENTALS INTRODUCTION 9 0.5 to 3.020 to 30 2.0 to 3.020 to 120 0.3 to 1.030 to 60 0.5 to 1.020 Sterilization with steam 100.020 to 45

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