1)Standard compliance: Design & Manufacture Std.: API608 Face to Face Std.: ANSI B16.10 & API 6D Flange dimensions: ANSI B16.5 Butt welding dimension: ANSI B16.25 Pressure temperature lating: ANSI B16.34 Inspection and test: API 598 & API 6D 2)ball valve Major parameter Size: 1/2"-8" Class: 150Lb--600Lb Body /Bonnet: WCB LCB CF8 CF3 CF3M CF8M Ball: 304/316/A105+ENP/316L Stem: 13%Cr/316/316L/304 Sealing: Soft sealing, metal to metal, flexible graphite Operated Way: Lever, Gear, Pneumatic, Electric Medium: Water, Oil, Gas, etc. Working Temperature: -29 C~150 C Structure Type: Two-Piece Anti-static construction "AS" and fire-resistant construction "FD".