Metal Parts: 316 Stainless Steel
Spring: 316 Stainless Steel
Rotary Face: Graphite, Tungsten Carbide, Silicon Carbide
Bellow: NBR (Nitrile), FKM (Viton®), E.P.R (EPDM), Kalrez/Perlast (FFKM), Aflas (TFE/P), Silicon (VMQ)
Seat: Ceramic, Silicon Carbide, Tungsten Carbide, Stanless Steel, Ni-Resist.
