purchase of variety tubewell materials under nabagram gp.-1 garden pipe 2 column pipe 3 3 cable 4 starter 5 mta 6 25 union 7 gum 8 taplon 9 1 pipe 10 elbow 11 lime ( chun ) 12 gum 13 column pipe 3 14 1 pipe 15 elbow 1 16 supplying, fitting and fixing steel cutter piece upto 450 mm long with sockets. ( i ) 40 mm dia. 17 supplying pvc strainer of approved make with adapter conforming to i.s.12818 specifications. ( iv ) 80 mm dia. 18 supply of pvc pipes & fittings schedule 80 ( medium duty ) conforming to astmd - 1785 and threaded to match with gi pipes as per is : 1239 ( part - i ) . 80 mm 19 supply of pvc pipes & fittings schedule 80 ( medium duty ) conforming to astmd - 1785 and threaded to match with gi pipes as per is : 1239 ( part - i ) . 32 mm 20 reducing socket ( mm x mm ) 100 x 40 21 80 mm dia g.i. well cover 22 40 mm non - return valve 23 supplying and delivery 240 v, single phase dm coupled pump set. make : crompton greaves model : dm 13 t, sus x del : 1 x 1, 1.0 h.p. 24 2.5 mm water proof flat cable 25 3 / 5 hp single phase push button starter 26 supplying p.v.c. water storage tank of approved quality with closed top with lid ( black ) - multilayer ( d ) 1000 litre capacity 27 ( ii ) polythene bib cock / stop cock with plastic inlet ( emco / atlas or equivalent ) 15 mm 28 gum 29 starstar 30 adactor 31 1.25 / 1 gi elbow 32 union 33 brush elbow