Pressure rating: 1500 / 2500 (4500) lbs, PN 160 - PN 500 (B760). Size range: 2 1/2 - 4 Inch. Body materials: (S)A105N, (S)A182-F22, (S)A182-F91, (S)A182-F92, (S)A182-F316(L), 1.0460, 10CrMo9.10, 1.4903. End connections: BW. Features: Pressure Seal Bonnet, Integral Backseat.