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Sealing technology manual for the process industry

FG-120 – FG-120 is a fiber-reinforced graphite seal in an unmistakable royal blue color. This flat gasket is reinforced with aramid fibers (bound with NBR) and thus withstands a wide variety of chemical and thermal stresses. FG-180 – FG-180 is a silica-filled flat gasket made of modi- fied PTFE. Its very good mechanical characteristics, thermal resistance and white color make it a particular favorite of the pharmaceutical industry. FG-360 – The unique flexibility of FG-360 is due to the fact that it consists of 100% expanded PTFE (ePTFE). Gaskets made from expanded PTFE stand out for their high temper- ature cycle resistance. They also resist cold flow and are con- sidered especially pure. CHARACTERISTICS FG-120 FG-180 FG-360 1.5 MM THICK 3.0 MM THICK Type FA-A1-0 DIN 28091-2 TF-M-0 DIN 28091-3 TF-0-0 DIN 28091-3 TF-0-0 DIN 28091-3 Material Graphite, aramid fibers (bound with NBR) Silica-filled PTFE Expanded PTFE Expanded PTFE Color blue white white white Approvals • EU Reg. 1935/2004 • TA Luft • DVGW • KTW • WRAS • W 270 • EU Reg. 1935/2004 • FDA 21 CFR 177.1550 • TA Luft • DVGW • FDA 21 CFR 177.1550 • USP Class VI –121 °C (250 °F) • TA Luft • FDA 21 CFR 177.1550 • USP Class VI –121 °C (250 °F) • TA Luft Densitiy g/cm3 1.74 2.10 0.85 0.85 Tensile strength longitudinal N/mm2 18.0 17.0 14.0 18.0 Compression % 6.0 5.0 69.0 66.2 Recovery % 60.0 45.0 7.6 11.6 Temperature range –100 to +300 °C (–148 to +572 °F) –200 to +210 °C (–328 to +410 °F) –268 to +315 °C (–450 to +599 °F) –268 to +315 °C (–450 to +599 °F) In addition to the conventional flat gasket form made of FG- 360, Freudenberg also offers a sealing band (joint sealant). This sealing band, delivered in rolls, can be individually cut and is self-adhesive on one side. That means it can seal joints, covers or frames quickly and reliably – without tool- ing costs. The FG-360 joint sealant is 25 m long and is avail- able in a variety of widths. APPENDIX PRODUCT PORTFOLIO MATERIALS RESISTANCE & PURITY ENGINEERING PLASTICS ELASTOMERIC MATERIALS TECHNICAL FUNDAMENTALS INTRODUCTION 73 1.742.100.850.85 18.017.014.018.0 Compression % 6.05.069.066.2 Recovery % 60.045.07.611.6

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