Single Piece Design Ball Valve in Screwed End connection One Piece Design Screwed Ball Valve (FB) Design & Testing Design Standard : IS 9890-1981 Pressure Testing : BS 6755 Part I/API 598/IS 6157-1981 Screwed Dimensions : ANSI B 1.20.1/BS 21/IS 554 Size:1/4" to 2" Class:150 MOC:WCB(CS)/CF8(SS304)/CF8M(SS316)