Metal Parts: 304 Stainless Steel
Spring: 304 Stainless Steel
Rotary Face: Phenolic Carbon, Graphite, Silicon Carbide
Bellow: NBR (Nitrile), FKM (Viton®), CR (Neoprene®), E.P.R (EPDM).
Seat: Ceramic, Silicon Carbide, Tungsten Carbide, Stainless Steel, Ni-Resist.
