used. Under ideal conditions, seals made of NBR and HNBR can be stored for up to 6 years and FKM seals for up to 10 years. - Seals pre-assembled on the couplings must be inspected for damage and contamination [...] management and exhaust technology - with the highest quality and lasting reliability. With over 90 years of experience and a deep-rooted spirit of innovation, we are shaping the technologies of tomorrow [...] countries. VOSS is wholly owned by the non-profit Hans Hermann Voss Foundation, which for more than 30 years has supported projects in the natural sciences and research, education and training, youth and the