ENVIROSTAR 400
Packingset made by combining two expanded Graphite grades and designs in order to avoid blow out and extrusion and as well enhance the sealability of this valve sealing set. The set test and approve by the AMTEC GmbH Lauffen in Germany.
The leakage parameters of 8.6 x 10-3 mbar · l/(s·m) complies with the VDI 2440/TA Luft @ +400 °C, which specifies a maximum allowed leakage of 1.0 x 10-2 mbar · l/(s·m) (test media helium) and therefore recommend as a high grade seal system.