1)Material: cast steel WCB,also available with stainless steel CF8/CF8M; ANSI Class 150 to 900 2)Design: ASME B16.34, API 6D. 3)Face to face: ANSI/ASME B16.10 4)Wormwheel operated. 5)Inspection & Testing: API 598, 6)Suitable media: water, oil, Gas and some corrosive liquids. Flanged ball valve (worm wheel ball valve), & Gear operation. carbons steel, stainless steel