supply erection and commissioning of sprinkler system at ash dyke ( lagoon-i ) of 2x600mw sstpp , mppgcl , dongalia , supply , supply of hdpe pipe 90 mm outer diameter ( id-75 . 50 mm thickness 07 . 25mm ) pn 10 each pipe of standard 6 meter in length . material grade pe-100 with special high pressure hde , mlc and mec zink plated ms latch and clamp with handle set to be connected with hdpe pepe to make it portable with complete set of rsr and sq . ring . , hdpe elbow 90 degree size 90 mm dia for above mention pipe for taking pipe downward to lagoon . , coupler for jointing hdpe pipe with main line of water , hp sprinkler nozzle of area coverage 50 m dia flow 12 cum/hr at 5 kg/sq cm sprinkler size 75 mm along with all accessories for sprinkler nozzle . , sprinkler tripod with 1 . 25x30 long gi raiser pipe . , ms slip on flange class 150 connected with main water pipe line nipple line size 80 mm , ms blind flange class 150 connected with main water pipe line for close unused water line size 80 mm , butterfly valve for isolation of 80 mm ms line from hdpe line along with counter flange class-150 cast iron isi mark centric disc design butterfly valve molded nitrile seat/epoxy resin coated body : ci disc ss304 seat nitrile shaft aisi 410 operation lever operated type :- water b type hyd test pressure 16 kg/sq cm ( for body ) 11 . 5 kg/sq . cm ( for seat ) , ball valve for isolation of sprinkler nozzle with riser pipe body - astm a351 gr cf8/cf8m ball astm a 351 gr cf8m stem aisi304/aisi 316 mfg std generally confirming to bs 5351 , testing bs 6755 lever aisi 304 with pvc sleeve end screwed to bsp size 1-1/4 ( 32 mm ) , nut and bolt m16x75 mm , gasket sizer 80 mm , work , fabrication of portable ms stand/stools for hdpe pipe resting and clamping , excavation work , erection and commissioning work complete pipeline lying fittings along with nozzles - as per detailed scope of work ( total work completion period : with in 20 days ) scope of work as per enclosed annexure