supply & delivery of 150 mm dia c.i. sluice valve and other miscellaneous materials for different govt own & operated major rli schemes under assistant engineer ( a-m ) mathabhanga ( agri-mech ) sub division under the jurisdiction ofcooch behar ( agri-mech ) division supply and delivery of 150 mm dia c.i. sluice valve and other miscellaneous materials for different govt own major rli schemes , supply of 150 mm dia c.i. sluice valve with hand wheel confirming to isi : 14846 / 2000 with latest ammendments and shall be duly marked with standard lsi certification marks..the fittings shall be of sizes and class as per is specifications.pressure designation:pn 1.6 , supply & transport of rubber insertion 5 mm thick with proper reinforcement 2 ply conforming to is: 638 / 79 with isi mark with latest ammendments suitable for raised surface of ms flange as per is: 6392 / 71 ( i ) 150 mm dia rubber insertion ( table 17 & 5 ) , supply of deep groove ball bearing 6307 ( make:tata, skf ) , supply of flat belt of size 8x4 for fitting with the belt system of iron coupling. ( as per sample ) , supply of m.s. hexagonal head bolts & nuts conforming to is : 1363 ( part-i ) / 1992 of product grade-c with latest amendments for bolts & is: 1363 ( part-3 ) / 1992 of product grade-c with latest amendments for nutrs properties / class for bolt - 4, 6 & for nut-4.5. , m12x65mm nut & bolts , m12x40mmnut & bolts