Pressure rating: 1500 / 2500 (4500) lbs, PN 160 - PN 640 Size range: 3/8 - 2 Inch. Body materials: SA105N, SA350-LF2, SA182-F12, SA182-F22, SA182-F316(L), SA182-F51. End connections: BW, SW, NPT, Flanged. Features: Integral Bonnet (Bonnetless), Loose Backseat.