maintenance of mechanical equipments of ugp, wmp and ventilation group of mmu section for duration of 2 years- opening of the manhole cover for cleaning of tower section / distributor cleaning and sparger installation manhole installation with the gasket/ normalization during ugp shutdown., ugp viewing window o-ring replacement during ugp shutdown., flange gasket replacement (flange size -upto 3 ), flange joint gasket replacement (flange size- 3 to 8"), flange joint gasket replacement (flange s

Nuclear Power Corporation Of India Limited has invited bids for the maintenance of mechanical equipments of ugp, wmp and ventilation group of mmu section for duration of 2 years- opening of the manhole cover for cleaning of tower section / distributor cleaning and sparger installation manhole installation with the gasket/ normalization during ugp shutdown., ugp viewing window o-ring replacement during ugp shutdown., flange gasket replacement (flange size -upto 3 ), flange joint gasket replacement (flange size- 3 to 8"), flange joint gasket replacement (flange size- 10" and above), overhauling of diaphragm valve (size up to 2 ) , overhauling of diaphragm valve (size > 2.5 ) , overhauling of gate/globe/check valve (size: upto 4"), overhauling of gate/globe/check valve (size: 6" to 10 ) , overhauling of gate/globe/check valve (size: 10" and above), relief valve calibration (size: upto 3" inlet size), relief valve calibration (size: greater than 3" inlet size), overhauling of centrifugal/vacuum pump/canned rotor pump (size < 10 kw power rating) , overhauling of centrifugal pump/electric motor capacity > 10 kw power rating and < 50 kw ., overhauling of centrifugal pump/electric motor capacity > 50 kw power rating and < 150 kw., overhauling of washing machine/ drying tumblar/ hydro extractor machines at wmp laundrry/ non active aundry. , shell and tube type hx cleaning; (includes flanges opening, tube cleaning and box-up);size <20 , shell and tube type hx cleaning; (includes flanges opening, tube cleaning and box-up);size >20 , cleaning of filter/strainer (size upto 6")., cleaning of filter/strainer (size more than 6")., overhauling of ahu., replacement of ahu., replacement of pulley of fan/ahu., replacement of v-belt (one set) of fan/ahu., replacement of vibration isolator pad of ahu/ fan., drain tray cleaning and drain line flushing of ahu., insitu cleaning of fins of ahu cooling coil. , cooling coil replacement of ahu., overhauling of centrifugal fans (up to 30 kw motor rating)., overhauling of centrifugal fans (above 30 kw motor rating)., duct mounted fan removal and installation. , fan / motor bearing greasing., replacement or cleaning of pre filter/wire-mesh/grill., replacement of hepa filter., replacement of hepa charcoal filter., installation of screen/ wire mesh., overhauling/maintenance of multi flapper damper/gravity louvers , fabrication & installation of multi flapper damper/gravity louvers., fussible link inspection of fire dampers., fabrication and installation of new duct., removal and installation of old ducts., fabrication and installation of miscellaneous gi sheet items., canvas cloth installation in ducts expansion joints (up to 1600 mm perimeter)., canvas cloth installation in ducts expansion joints (above 1600 mm perimeter)., turbine building / service building air washer plant spray nozzles removal, cleaning, replacement, installation and testing. including flushing of all headers of air washer plant., replacement of tyre in tyre coupling of ahu. , insitu cleaning of pc cooling coil fins., insitu cleaning of fm vault cooling coil fins., insitu testing of butterfly damper., overhauling of butterfly valve/damper (up to size 300 mm dia.)., overhauling of butterfly valve/damper (above size 300 mm dia.)., actuator seal kit replacement., molecular sieve replacement., replacement of door seals., maintenance of door lever (handle)., closing/opening of r/b v1/v2 door., replacement of polythene sheets of suppression pool and vent shaft opening in r/b., ep opening and boxup., fm vault liner cooler casing removal and installation., fm vault fan casing and support fastener tightening., providing assistance to departmental manpower for various condition monitoring checks, routine work/ miscellaneous jobs by one semi-skilled person for 8 hrs., hourly assistance beyond normal working hours for manpower against soqr- 61., providing assistance to departmental manpower for various condition monitoring checks, routine work/ miscellaneous jobs by one skilled person for 8 hrs., hourly assistance beyond normal working hours for manpower against soqr- 63., providing assistance to departmental staff for various office works, related to documentation and vibration trending of ventilation group equipment by one skilled person for 8 hrs., supply of industrial grade heavy duty pen oil., supply of chisel paint stripper (gasket remover)., supply of rubber sheet as per attached specifications, moc-buna-n (nbr), size= 2000 mm x 1000 mm x 1.6 mm, supply of rubber sheet as per attached specifications, moc-buna-n (nbr), size= 2000 mm x 1000 mm x 3.0 mm, supply of special proofed cotton canvas as per bis specification no. is:6803 : 1972 with basic fabric as per bis specification no. is: 1424-1983, latest, variety-3; width 91cm. The estimated project cost is ₹1.98 Cr, with an EMD of ₹0.04 Cr. Interested bidders can submit applications until 12 October 2026, with the technical opening scheduled for 12 October 2026.