tender for supply & delivery of 150mm dia gi voltas bend and other ms accessories for different govt own & operated major rli schemes under assistant engineer(a-m) mathabhanga(agri-mech) sub division under the jurisdiction of cooch behar (agri-mech) division under non-planned maintenance work , supply of 150mm dia gi voltas bend both ends flanged as per is 6392 with latest amendments , supply 150mm dia. (g.i) 90 degree gi both end flanged conforming to is 1239 (part-2)/2011 with latest amendments thereof (4.8 mm thick wall thickness) duly isi marked is-1239:2011 , supply 150mm dia. (g.i) 90 degree gi both end flanged conforming to is 1239 (part-2)/2011 with latest amendments thereof (4.8 mm thick wall thickness) (priming bend) duly isi marked is-1239:2012 , supply of gi top cover 10mm thick with boss on p.c.d 255mm to match with the body of 150 mm alfa alfa valve (type-c) (ms with gi coating) , supply of m.s./g.i 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. , m6 x 40mm nut & bolt , supply of foot valve leather washer150mm dia , supply and transportation of 150mm dia alfa alfa valve (c.i/m.s/type-c) as per following technical specifications and drawing :- 1. spindle (sq rh thread) - s.s(410) 2. top cover : g.i with 8 nos nut and bolt 3. body :- c.i (grey fg 200, is:210/78) 4. galnd, valve seat : fg 200 the valve to be painted with one one coat of red oxide primer and two coats of black japan paint