bids are invited for servicing of motor operated m-bfp discharge isolation valves, control & isolating valves on feed water lines, ist/iind discharge nrvs of m-bfp, manually operated gate/globe valves installed of hp lines on turbine side. size: 250~300mm, design press.: > 40 kg/cm2, temp.: 250 oc , servicing of motor operated discharge isolation valve, ist / iind. discharge nrvs of t-bfps, control & isolating valves on feed water lines. size:350 mm,design press.: 219~302 kg/cm2, temp.:210 oc , servicing of feed water minimum flow isolation valves, pneumatically operated control valves on turbine side. size:150 mm, pr. : 219~224 kg/cm2 , servicing of motor operated control valve, motor operated gate/globe valves, manually operated gate/globe valves, check valves size:150~250 mm & manually operated valves of size: 15~100mm installed on hp lines. motor operated valves. size: 25~100 mm pr.> 40 kg/cm2 , servicing of hydraulic operated hp bypass spray water control valves, spray isolation valves, nrvs on turbine side. size:100-150mm, pr. : 152 kg/cm2. , servicing of hph 5a, 5b, 6a, 6b extraction steam valve, check valves. size: 250mm, pr.: 40~51kg/cm2 , servicing/overhauling of crh reverse current valve. size:900 mm, pr: 51 kg/ cm2. , replacement of hp / lp valves of different floors by cutting of damaged valve & welding of new valve. size: 08~25 mm. , replacement of flange gasket of hp/lp valves & piping on per mm dia.basis of valve. , replacement of gland packing with new one of hp / lp valves on per mm dia. basis of valve. , replacement of hp / lp heater man hole flange gasket. , servicing of hph - 5a/5b, 6a/6b, lph-2&3, deaerator & gland steam header safety valve. , servicing of suction relief valves of t-bfps / m-bfps / ceps / lphs / hphs and safety valves of main air ejectors. , servicing of motor operated/control & isolation valves installed on lp lines. size: 25~100mm, pr. <40 kg/cm2. , servicing of motor operated / control & isolation valves installed on lp lines. size: 150~200mm, press<40 kg/cm2. , servicing of motor operated/control & isolation valves installed on lp lines. size: 250~650 mm, press<40 kg/cm2. , servicing of mannual operated gate/globe valves & nrvs installed on lp lines. size: 15~100mm, pr. <40 kg/cm2. , servicing of mannual operated gate/ globe valves & nrvs installed on lp lines. size:150~350mm, press<40 kg/cm2. , servicing of mannual operated gate/ globe valves & nrvs installed on lp lines. size: 400~650mm, press < 40 kg/cm2. , servicing of steam drain trap valve. size: 40~50mm, pr. < 40kg/cm2. , revisioning/ servicing of butterfly valves installed on acw system & gland steam system.size:150~350mm. , revisioning / servicing of butterfly valves of acw system. size: 450~750mm , revisioning / servicing of nrvs installed on acw system. size: 500mm. , revisioning / servicing of nrvs installed on srw system. size: 750mm. , servicing of gear boxes of various valves installed on acw system, feed water, condensate & steam line. valve size: 100~750 mm. , servicing of gear boxes of various valves provided at condenser inlet & outlet in cw line and bfp-t exhaust to condenser. valve size: 1350-2100 mm. , revisioning/servicing of butterfly valves of bfp-t exhaust to condenser. size:1350 mm. , revisioning/servicing of butterfly valves provided at condenser inlet & outlet in circulating water line. size:2100 mm. , welding/repair of lp pipings attending leakages of pipe lines & headers etc. by cutting the damaged portions. , revisioning / servicing of ventilator valve. , replacement of flange type gate/globe valves of m-bfp & t-bfp oil coolers / lp lines size: 80 -100 mm , replacement of butt welded gate/globe valves of m-bfp & t-bfp oil coolers/lp linessize: 80-100 mm , revisioning/servicing of nrvs installed on sump pump pipe lines on turbine side. size: 50-100 mm. , revisioning / servicing of ball collector of condenser tube cleaning system. , inspection/minor repairing of ball catch strainer of condenser tube cleaning system installed inside cw return line of size:2100 mm , revisioning/servicing of ball type valves installed on condenser tube cleaning system on turbine side. size:15-40 mm. , revisioning/servicing of ball type valves installed on condenser tube cleaning system on turbine side. size: 65 -100 mm. , inside inspection and minor repairing of hp/lp flash tanks. , inspection/repairing of nozzle of starting air ejector. , replacement of hp / lp valves of different floors by cutting of damaged valve & welding of new valve. size: 40~65 mm. , inspection and o/h of nozzles of steam jet air ejector. , inside inspetion of cw outlet duct by opening of its manhole , revisioning / servicing of hp heater bypass valve bf-031-egv , revisioning / servicing of isolating valve for superheater spray water sp-031-mgv , replacement of main steam line drain / hpbp spray valves & other similar valves of size nb-80~100 mm, pr. > 40 kg/cm2, temp. > 540 oc , putting the new spool piece for replacement of main steam line drain /hpbp spray valves & other similar valves of size nb-80~100 mm, pr. > 40 kg/cm2, temp. > 540 oc , replacement of lp valves of size nb-300 mm, pressure rating < 40 kg/cm2. , putting the new spool piece for replacement of lp valves of size nb-300 mm, pressure rating < 40 kg/cm2. , replacement of lp valves of nb-350 mm, pressure rating < 40 kg/cm2. , putting the new spool piece for replacement of lp valves of nb-350 mm, pressure rating < 40 kg/cm2. , replacement of lp valves of nb-250 mm, pressure rating < 40 kg/cm2. , replacement of heater level control valves, isolating valves & nrvs of pressure rating < 40 kg/cm2. , attending feed water leakage in hp heater’s , overhauling /servicing of lp heaters