TRELLEBORG SEALING SOLUTIONS The next generation of fiber-reinforced graphite gaskets, FlatSeal™ HMF20, provides reliable long-term sealing in challenging operating environments. FlatSeal™ HMF20 combines the high mechanical strength of a conventional fiber gasket with the high temperature and pressure characteristics of graphite gaskets. It demonstrates the following properties: • Reliable sealing performance in high temperature environments • Wide-ranging media compatibility • Ability to withstand high pressures • Excellent residual stress characteristics Incorporating a high proportion of graphite content, FlatSeal™ HMF20 as been specially engineered to deliver this unique performance profile. • Petrochemical processing • Chemical processing • General industrial applications in high temperature environments • Excellent long-term performance in high pressure environments • Wide ranging media compatibility, including oils, greases, acids, alkalis, solvents, refrigerants, water and steam • Good temperature resistance up to +250 °C / +482 °F • Anti-stick coating with long service life • Satisfies leakage limits specified in DIN 3535-6 • Complies to fugitive emissions standards • Approvals: DVGW, WRAS, HTB DIN 30653, BAM (max. 110 °C / 130 bar ), BS7531 (X) • Graphite morphology optimized to meet TA Luft and VDI 2290 requirements Using a multi-step, state-of-the-art production process, HMF FlatSeal™ gaskets are manufactured with the highest quality raw materials. Every batch of material must match precise specifications and is subjected to rigorous inspection to ensure that only approved materials are used in production. To guarantee consistent high quality at all steps, a process control system monitors and controls the preparation of formulations, their blending operation, and the calendaring process that forms the material sheet from which a FlatSeal™ is formed.

Recommendations for use The temperature and pressure recommendations in the graphs apply to gaskets 2.0 mm / 0.08 inch thick that are used with raised face flanges. Higher stresses are possible when thinner gaskets are used. The recommendations are based on material characteristics and installation conditions. The information provided should therefore be considered cautious estimates rather than specific operational limits. Royal blue Water/water vapor WWW.TRELLEBORG.COM/SEALS Copyright © 2022 Trelleborg AB (publ). All rights reserved. Information and related materials are subject to change without...