tender for supply and delivery of ms item required for maintanance of different rli scheme under ae (a-m) purulia-i (am) sub-div under the jurisdiction of purulia (am) division, belguma, purulia under non-plan maintenance work supply and delivery of ms item required for maintanance of different rli scheme under ae (a-m) purulia-i (am) sub-div under the jurisdiction of purulia (am) division, belguma, purulia under non plan maintenance work. , 150 mm n.b alfa alfa valve withg.i top cover (type-c) with hand wheel, one wheel for four nos. of valve. , 150 mm diaisi marked sluice valves pressure designation p.n.1.6 with hand wheel for water works purpose, c.i flanged type conforming to is 14846/2000 with amdt. no. 1&2. components/parts of sluice valves shall be manufactured from basic materials given in table 1 of is 14846/2000 with amdt 1& 2. the valves shall be tested for (closed end test) against hydrostatic test requirement.150 mm nominal size c.i. sluice valve. , 150 mm dia, 2 mm thickness,45mm width g.i heavy duty hose clamp fitted with g.i. bolt & nuts. , c. i adopter flange 150 mm dia , m.s reducer 150 x 125 mm both end flanged. 200 mm long as per is 6392/71 table -17, 12 mm take. , 300 mm dia gi z bend make from mserw pipe both end flange welded. pipe as per is 1239 and flange as per is 6392/71, table 17