bids are invited for hydrant valves for patratu project , 1 supply of main equipments-hydrant valves ( isi approved ) 2 supply of mandatory spares-hydrant valves ( isi approved ) 3 supply of mandatory spares-spindle with nuts of hydrant valve 4 supply of mandatory spares-bonnet, gland nut, rubber assembly of hydrant valve 5 supply of mandatory spares -seat, check nut, washer assembly of hydrant valve 6 supply of mandatory spares -rubber washer for female coupling 7 supply of mandatory spares -female coupling assembly complete for hydrant valve 8 supply of mandatory spares-lock pin assembly for hydrant valve total quantity : 576