supply and fixing of maintenance materials for karbala raw water pump house under zone no. 02- providing & laying ductile iron mechanical joint collar with followerglands conforming to is-9523 / 2000 having dimension as per table 24 ofis-9523 / 2000 in the nominal diameter / sizes with external bitumen coatingand internal cement mortar lining. ( laying conforming to is 12288 :1987 ) 2 adopter 600 mm dia 3 m.s pipe 300 mm dia 4 m.s bend flnage 20.5 300 mm dia 5 socket flange 250 mm diaa.c. coupler / socket suitable for a.c. pressure pipe is: 1592 / 1989 ismark 100 mm dia 6 sluice valve 250 mm dia 1c.i. flange heavy duty as per is: 1538 for c.i. sluice valve 50mm dia 7 sluice valve 300 mm diac.i. flange heavy duty as per is: 1538 for c.i. sluice valve 100mm dia 8 socket flnage 300 mm diaproviding 200mm dia ductile pn-16 type iron flanged spigot conformingtois-9523 / 2000 having dimension as per table 24 of is-9523 / 2000 in thenominal diameter / sizes with external bitumen coating and internal cementmortar lining with finishing as per clause 13 of is-9523 / 2000. 9 adopter 300 mm dia 10 joint m.s bend 300 mm diag.i. bend ‘m’ class heavy duty double side threaded 40 mm dia 11 tee 600 x 600 x 300g.i. equal tee as per is 1879 / 1975 heavy duty isi mark 20 x 20 x 20mm dia 12 reduser 300x250mm