Size: 1/4â-2â Pressure Rating: 800LB, 1500LB, 2500 LB Material: A105N, LF2, F11, F22, F304ï¼F316, F304L, F316L, F317 End: NPT, SW, RF, RJT, BW Design & Manufacture Standard: API 602 Face to Face: ASME B16.10 End Connection: ASNI B16.11(SW), ASNI B1.20.1(NPT), ANSI B16.25(BW) Test Standard: API598 OS&Y Bolted bonnet or Welded bonnet Full bore or reduced bore Integral backseat