procurement of spare parts of mhv , ssv and knife gate valve installed at ahp of make m/s the indure installed at 2x660mw , sstpp , dongalia , 12 x 6 material handling valve assembly , 300 x 150 mm material handling valve assembly ( left ) , 300 x 150 mm material handling valve assembly ( right ) , slide gate housing , slide gate housing , gland packing follower , 12 flanged body , pipe plug , 2 air intake valve ( check valve ) , disc , spring , 12 knife edge gate valve ( manual ) , seat replaceable , slide gate , gland follower , 200 nb segregating slide valve and 200 nb vacuum breaker , 200 nb segregating slide valve assy . , slide gate , seat , valve body half ( 1 set of 2 nos . body with 2 seat )