Features: 1) Design standard: ANSI B 16.34 a) Face to face: ASME B 16.10 b) Flanged ends: ASME B16.5 c) Test & inspection: API 598 2) Size: 1/2"-12", DN15 - DN300 3) Class: 150lb, 300LB 4) Temperature: -29 - 121癈 5) Body / bonnet: WCb / 316 / 304 6) Seat: 13% Cr + PTFE/316 + PTFE 7) A105 + ENP + PTFE 8) Disc: 13% Cr / 316 / A105 + ENP 9) Stem: 13%Cr / 316 / 304