Metal Parts: 316 Stainless Steel
Spring: Hastelloy “C”
Rotary Face: Graphite, Silicon Carbide.
Bellow: NBR (Nitrile), FKM (Viton®), E.P.R (EPDM), Kalrez/Perlast (FFKM), Aflas (TFE/P), Creavey (PTFE/FKM), Silicon (VMQ).
Seat: Silicon Carbide, Graphite.
