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Sealing technology manual for the process industry

1 Clamp connection with nominal diameter DN 6 to DN/OD ¾″ Series A: DN 6 to DN 8 Series B: DN/OD 10.2 to DN/OD 17.2 Series C: DN/OD ¼″ to DN/OD ¾″ 2 Clamp connection with nominal diameter DN 10 to DN/OD 6″ Series A: DN 10 to DN 200 Series B: DN/OD 21.3 to DN/OD 219.1 Series C: DN/OD 1″ to DN/OD 6″ 3 A version with truncated lip pursuant to ISO 2852 is also available 2 3 1 Conventional clamp seal Clamp seals Clamp seals were developed for a quick and secure pipe con- nection for continuously operating systems. The main advan- tage of clamp connections is their simple installation, since the flanges are designed symmetrically and thus the seals do not need to be installed with a particular orientation. The di- mensions are standardized in accordance with ISO 2852 (inch dimensions) and DIN 32676 (metric dimensions), the standard- ized seals are therefore particularly economical and available from stock. Since the clamp connection does not have a me- tallic stop, there is the danger that leakage can occur if the seal is overly compressed or not seated properly on installation. Freudenberg offers a portfolio of four materials that can be processed into clamp seals from a single tool: • 70 EPDM 291 (black) • 70 EPDM 253815 (white) • 75 Fluoroprene® XP 41 (blue) • 70 VMQ 117055 (transparent) Applications Clamp seals cover a broad range of applications for the seal- ing of pipe connections: • Suitable for use in a wide variety of pipe connections in the food, beverage and pharmaceutical industries • Ideal for flange connections that need to be opened on a regular basis • Used in non-critical media Dimensions • According to ISO 2852 • Nominal dimensions from DN 10.2 to DN 219.1 • According to DIN 32676 • Nominal dimensions from DN 6 to DN 200 • Nominal dimensions from 1/4” to 6” THE ADVANTAGES AT A GLANCE • Standardized sealing element • High density of use • Especially fast and easy assembly, regardless of the direc- tion of installation • Can be removed quickly • Available in numerous approved materials variants APPENDIX PRODUCT PORTFOLIO MATERIALS RESISTANCE & PURITY ENGINEERING PLASTICS ELASTOMERIC MATERIALS TECHNICAL FUNDAMENTALS INTRODUCTION 71 23

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