supply and delivery of different valves, surge tank, bend etc. for maintenance and repair works of different m.i. schemes under kandi(a-i) sub-division within berhampore-ii(a-i) division under non-plan , supply and delivery of materials , c.i. n.t.p. valve as per drawing (annexure-e )with ms spindle and weight of the bottom disc to be fitted with rubber washer which will be fitted tightly at the closing of ntp valve. there should arrangement of squre type key holder made of ms complete including two course of painting over a coat of priming. approximate weight 20 kg excluding key.(i) 150 mm dia. , supply of nuts & bolts ( tata or approved make ) 5/8 x 2.5 , supply of nuts & bolts ( tata or approved make ) 1/2 x 2.5 , supply of nuts & bolts ( tata or approved make ) 1/4 x 1.5 , galv. ms column pipe isi marked, is:1239, galv-is 4736 150 mm dia one end screwed & other end non-std flange 3 mtr. long (bottom) , galv. ms column pipe isi marked, is:1239, galv-is 4736 150 mm dia one end std & other end non std flanged (top) 3 m long , c.i. spout key ( square) for ntp valve ( as per sample) , spindle with square nut for sluice valve (as per sample) , 150 mm dia ms flange (12 mm thick)