Metal Parts: 304 Stainless Steel
Spring: Hastelloy “C”
Rotary Face: Graphite
Bellow: NBR (Nitrile), FKM (Viton®), CR (Neoprene®), E.P.R (EPDM), Kalrez/Perlast (FFKM), Aflas (TFE/P), Creavey (PTFE/FKM), Silicon
Seat: Silicon Carbide, Stainless Steel, Ni-Resist.
