Repair maintenance of water pumps and misc maintenance works of various AC plant at Naval Dockyard Visakhapatnam

Amount

Material and labour for repairs and overhauling of pumps of 3 HP capacity by disconnecting and taking out from the bed, transportation to workshop, rebuilding of worn out shaft of its original size/dia, replacement of worn out bush/ball bearing reconditioning the impeller and gland bushes, replacement of gland packing, studs, bolts etc., reassembling the pump unit, reinstalling its original position including painting to pump body with one coat of synthetic enamel paint, testing complete all as specified and as directed.

All as per item No 1.00 above but for 5 HP capacity

All as per item No 1.00 above but for 7.5 HP capacity

All as per item No 1.00 above but for 10 HP capacity

All as per item No 1.00 above but for 25 HP capacity

All as per item No 1.00 above but for 30 HP capacity

All as per item No 1.00 above but for 40 HP capacity

All as per item No 1.00 above but for 50 HP capactiy

All as per item No 1.00 above but for 75 HP capacity

All as per item No 1.00 above but for 100 HP capacity

Material and labour for repairs and overhauling of motors of 2 HP capacity by disconnecting and taking out from the bed, replacement of worn out bush/ball bearing, lugs, studs, bolts etc., re-installing in it's original position including painting the motor body with one coat of synthetic enamel paint, connecting up, testing complete all as specified and as directed.

All as per item No 11.00 above but for 3 HP capacity

All as per item No 11.00 above but for 5 HP capacity

All as per item No 11.00 above but for 10 HP capacity

All as per item No 11.00 above but for 15 HP capacity

All as per item No 11.00 above but for 20 HP capacity

All as per item No 11.00 above but for 25 HP capacity

All as per item No 11.00 above but for 30 HP capacity

All as per item No 11.00 above but for 40 HP capacity

All as per item No 11.00 above but for 50 HP capacity

All as per item No 11.00 above but for 75 HP capacity

Material and labour for disconnecting, taking out the motors of 3 HP capactities from the bed, tranportation to workshop and removing the existing winding and rewinding with new super enameled copper wire of same gauge and same number of turns after thorough cleaning of stator body and rotor applying insulating varnish, drying up by heating for improving ohmic valve, reassembling the motor by replacement of both end bearings, including painting with one coat of synthetic enamel paint, reinstalling on its original position connecting up, testing complete all as specified and as drected.

All as per item No 22.00 above but for 5 HP capacity

All as per item No 22.00 above but for 10 HP capacity

All as per item No 22.00 above but for 15 HP capacity

All as per item No 22.00 above but for 20 HP capacity

All as per item No 22.00 above but for 25 HP capacity

All as per item No 22.00 above but for 30 HP capacity

All as per item No 22.00 above but for 50 HP capacity

Taking down existing corroded/ unserviceable portion of MS flat/angle iron supports/ channels of various sizes fitted in electrical panels in AC plants and supply & fix MS flat/ angle iron including necessary bolting/ welding etc., complete all as specified and as directed .

Supply & fix stainless steel ball valves (ball of stainless steel) for liquid line of 50 mm dia with necessary modification work as required at site including dismantling existing unserviceable valves complete all as specified and as directed. Make:- Audco/Shakti/Zoloto

All as per item No 31.00 above but for 40mm dia

All as per item No 31.00 above but for 25mm dia

Material & labour for complete checking, servicing/ rectification of electrical circuits for all units and control wiring showing phase sequence with proper lugging of AC plant control panel including replacement of fused indication lamps with new ones, cleaning of all power contacts, rectification of minor defects in Ammeters and Voltmeters, testing and commissioning complete all as specified and as directed.

Material & labour for repairs and servicing of blowers including dismantling and re-building the shaft at worn-out places, machining to it’s original size, replacement of worn out bearings and checking of alignment complete all as specified and as directed

Material & labour for de-scaling the condensers of 5 to 7.5 TR package AC units by using HCL acid agent with continuous circulation method using circulation pump, finally neutralizing with fresh water, opening both ends covers of shell and tube condenser, cleaning of copper tubes manually by using nylon brushes, re-fixing the end cover with new ‘Neoprene make’ rubber gaskets, nuts, bolts etc., and commissioning after conducting performance test of the system complete all as specified and as directed.

Supply and charging of R-22 gas complete all as specified and as directed. Make:- Refron 22/Floron 22/Mafron 22

Material & labour for control wiring with suitable PVC insulated multi stranded copper conductor cable for HP/LP cut outs complete with suitable size PVC flexible conduit pipe protection from LT panel to unit control board including replacement of toggle switchs, indication lamps etc., with new ones and taking down unserviceable control wiring complete all as specified and as directed.

Supply & fix medium grade ISI marked GI pipes as in condenser water line of 100 mm bore with fittings and fixed complete to walls and ceilings or laid in floors including taking down the corroded pipes complete all as specified and as directed. Make:-Tata/Jindal/Oswal/Kalinga

All as per item No 39.00 above but for 80mm bore

All as per item No 39.00 above but for 50mm bore

Supply & fix butterfly valves lever operated of 80 mm dia for the existing/new pipe lines of AC plants with necessary modification to flanges, welding as required at site including dismantling existing unserviceable valves complete all as specified and as directed. Make:-Audco/Shakti/Zoloto

All as per item No 42.00 above but for 100mm bore

All as per item No 42.00 above but for 150 mm bore

Material & labour for taking out the defective pressure cut-outs of any range and model and supply & fix new pressure cut-outs of HP/LP pressure cut-out MP-15 connecting the pressure lines/control wiring, leak testing and commissioning complete all as specified and as directed Make:-Indofoss/Danfoss/Ranco

All as per item No 45.00 above but for Water pressure cut-out IPS-70

All as per item No 45.00 above but for Low pressure cut-out MP-1

All as per item No 45.00 above but for High pressure cut-out MP-5

All as per item No 45.00 above but for oil pressure cut-out MP-55

M/s.DSRK CONSTRUCTIONS

Sigma6

Chitturi Associates

LAKSHMI SAI CONSTRUCTIONS

Sri Jaya Surya Techs

SRI SIDDHI VINAYAKA ENTERPRISES