tender for work of overhauling of valves and wall blowers of unit no. 13, 2×200 mw, btps, obra - servicing of feed line and steam line gate valves & control valves viz.v2-116,v2-117,v2-85,v2-86, fcv-1&7, v2-56 (l&r) and e2 etc. 2 servicing of e-2 nrv (nb-300mm, np-250 kg/cm2). 3 servicing of low load line gate valves and control valve (fcv-2) 4 servicing of pneumatically operated s/h spray valve (e-19). valve size nb150mm, np-250kg/cm2. 5 servicing of pneumatically operated r/h spray (r-17) valve. 6 servicing of pneumatically operated s/h & r/h spray control & isolating valves. 7 servicing of boiler drum safety valves at 52m elevation 8 servicing of safety valves installed on hot reheat, cold reheat line and main steam line on right hand side of boiler at 52m elevation. 9 servicing of safety valve on soot blower line at 52m elevation. 10 servicing of high-pressure valve & nrv’s at different elevation from ‘0’meter level to 54meter level nominal bore may vary from ø10mm to ø100mm. 11 servicing of l.p. valves of air line, oil line & water line. 12 servicing of electromagnetic relief valve 13 servicing of h.o. filter 14 replacement/servicing of the actuators of v2-116 & 117, v2-85 & 86, v2-56 (l&r), e-2 valves 15 replacement/servicing of the actuators of b-55, s-16 and soot blower isolating valve size 65 mm 16 replacement/ dismantling and re-fitting of valves of size - 15 mm to 25 mm 17 replacement/ dismantling and re-fitting of valves of size - 40 mm to 50 mm 18 replacement/ dismantling and re-fitting of valves of size - 65 mm to 70 mm 19 replacement/ dismantling and re-fitting of valves of size - 100 mm valves 20 replacement/ dismantling and re-fitting of valves of size - 150 mm to 200 mm 21 replacement/ dismantling and re-fitting of various safety valves of such as boiler drum/ main steam/ crh/ hrh line etc. 22 welding of main steam line joint by tig welding. 23 repairing of main steam line joint. 24 welding of cold reheat / hot reheat line. 25 servicing of wall blowers 26 servicing of head valve of wall blowers 27 repairing/replacement of worn out pipes and bends of atomizing steam, heavy oil line/water line/air line from 15mm to 40mm nb from old & used healthy economizer pipe dia 32mm/new tracing line of 32mm/40mm. new tracing line pipe/ old economizer tubes