50mm flanged globe valve class 1 straight type fuel type hsd material body bonnet or c over is of brass other component as per is 778 1984 min length of threaded portion 17 0mm flange di mensions diameter 165 1 1 mm thickness 11 1 5 0 mm belt circle diameter 125mm no of hole s 4 diameter of holes 18mm as per is 778 1984 and and all other dimensions specifications as per is 77 8 1984 or latest