29 1/2"-500psi annular bop bore: 29 1/2" working pressure: 500psi top connection: 29 1/2", asme b16.47, 1000 psi wp studded, ring groove r-95 bottom connection: 29 1/2", asme b16.47, 1000 psi wp, flanged, ring groove r-95 weight£¨kg£©£º10973 dimension£¨mm£©£º2070¡á2070¡á1749