supply of various sizes bfv supply of various sizes bfv for daily valve operation in city area under ae m ww city s section , supplying, loading, transporting on site, unloading butterfly valves of pn 1.6 conforming to awwa c-504 in sgi- is 1865 (grade 500/7) material with appurtenances and flange adapters, nuts, bolts, washers, packings etc. stacking the same as directed on site for following diameters. (manually operated). the flange adapter used here conforms to awwa c-219. note :(1) butterfly valves, flange adapters and all other materials shall be supplied as per the acceptance criteria of mcgm as given in specification. 1200 mm dia. , supplying, loading, transporting on site, unloading butterfly valves of pn 1.0 conforming to awwa c-504 in sgi- is 1865 (grade 500/7) material with appurtenances and flange adapters, nuts, bolts, washers, packings etc. stacking the same as directed on site for following diameters. (manually operated). the flange adapter used here conforms to awwa c-219. note : butterfly valves, flange adapters and all other materials shall be supplied as per the acceptance criteria of mcgm as given in specification. 600 mm dia.