tender for overhauling and reconditioning of the iep (2 unit) other ancillary works at ambari falakata h/w site at block rajganj, under jalpaiguri division, p.h.e. dte.--1 cost of stanier including fitting fixing in hokle with proper tightness all complete 2 painting 3 anticorrosive paint in inside wall for filter and oxidation chamber and dish of vessel 2 coats 4 wall 5 top and bottom dish 6 bed plate both side 7 painting primer to out side vessel and all exposed pipe line 8 primer one coat in ms vessel out side only 9 vessel out side 10 top and bottom dish 11 in all exposed pipe line 12 a)150 mm dia cidf pipe 13 b)100 mm dia cidf pipe 14 c) 80mm dia cidf pipe 15 synthetic anamel paint to out side of vessel . 16 media for iep chamber 17 anthractic (coal & sand) of size 1mm to 4mm 18 b)filter sand (16/32 mesh)of depth 19 gravel size 20 i)20 mm to 12 mm 100 mm depth 21 i) 12 mm to 6 mm 100 mm depth 22 i) 6 mm to 3 mm 100 mm depth 23 weight of gravel @2250kg/cum 24 media for oxidation chamber mno2 granule 25 labour for placement of media in to vessel 26 transport cost of media for 100 km 27 add extra @10%for special /fittings 28 pressure gauge 29 construction of different dia sluice valve /air valve /washout chamber in different sizes for village road where light traffic run and for main road where heavy traffic run as deptt.approved drawing with 25cm thick brick work (1:6) over cement concrete (4:2:1) over a single b/f soling over150mm.thick sand filling in foundation including earth work in excavation and disposal of excess earth from work site with rcc (1:1.5:3) cover slab 100mm / 150mm thick slab on top of chamber with 1% reinforcement in rcc cover slab with necessary opening for operation of valve all complete including cost of labour & materials as per departmental dwg. [reinforcementtype:- other manufactuerers not specified] 30 80 mm dia to 150 mm dia 31 200 mm dia 32 supply and delivery of cidf sluice valve (special type)pw-1.00 of different dia make with ci double flanged non rusting spindle sluice valves conforming to is14846-2000with latest emended having body dome/bonnet and cover of c.i.gr-f. g210mtr. spindle of is-6603g.r 12/gr-13 non magnetic, nutsseatringsare of gunonetalasperis:318ltb-2flangesanddrilled to is:1538part iv&vi valves are suitable for max. working pressure of 10kg/cm2(seat test)and body tested to 15kg/cm2. 33 150 mm dia 34 200 mm dia 35 supply the following materials for connection of inlet, outlet, overflow, washout of ohr as per deptt. drawings. (a) cidf pipe class-b as per i.s. 7181-1986 with latest revision. 36 ordinary cement concrete (mix 1:2:4) with graded stone chips (20 mm nominal size) excluding shuttering and reinforcement,if any, in ground floor as per relevant is codes.b) river bazree 37 plaster (to wall,floor,ceiling etc.) with sand and cement morter including rounding off or chamfering corners as directed and raking out joints or roughening of concrete surface,including throading, nosing and drip course where necessary. with 1:4 cement morter c)10 mm thick plaster 38 neat cement punning about 1.5mm thick in wall, dado, windowsill, floor etc. 39 ordinary cement concrete (mix 1:1.5:3) with graded stone chips (20 mm normal size) excluding shuttering and reinforcement, if any, in ground floor as per relavent is code. a) river bazree 40 brick work 1 st class brick cement morter (1:6) (in foundation and plinth 41 clearing compound premises of shurbs, plants, jungles etc. by cutting and removing as directed (specific permission of engineer-in-charge prior to execution will be necessary). (payment to be made on area cleared) 42 welding in m.s. structural work with gas or electric:a) tack weld