Maintenance and Operation of Subways Storm Water Pumps FOBs and Related Electrical Installation LT Panel Board DG Set and Dewatering Pumps under PWD South East New Delhi

Supplying and fixing of 24 V DC ,20 Amp Analobattery charger on the existing DG set i/c control wiring with the 2 x 1.5 sq mm single core copper conductor cable on surface /recessed conduit etc complete as reqd.

Painting with synthetic enamel paint of approved brand and manufacture of required colour to give an even shade :

Two or more coats on new work over an under coat of suitable shade with ordinary paint of approved brand and manufacture

Providing and fixing Chlorinated Polyvinyl Chloride (CPVC) pipes, having thermal stability for hot & cold water supply including all CPVC plain & brass threaded fittings This includes jointing of pipes & fittings with one step CPVC solvent cement, trenching, refilling & testing of joints complete as per direction of Engineer in Charge. External work

600 mm dia.

Providing and laying D.I. specials of class K-12 suitable for push-on jointing as per IS : 9523 :

Up to 600 mm dia

Providing and laying S&S Centrifugally Cast (Spun) / Ductile Iron Pipes conforming to IS : 8329 :

400 mm dia Ductile Iron Class K-9 pipes

Providing lead caulked joints to spun iron or C.I. pipes and specials, including testing of joints but excluding the cost of pig lead :

400 mm diameter pipe

Supplying pig lead at site of work

Providing and fixing percolated galvanized iron profile sheets (size, shape and pitch of corrugation as approved by Engineer-in-Charge) of total coated thickness 0.50 mm (base metal of minimum 0.45 mm thickness with total coating thickness of 0.05mm) with zinc coating 120 grams per sqm as per IS: 277, in 240 mpa steel grade, 5-7 microns epoxy primer on both side of the sheet and polyester top coat 15-18 microns. Sheet should have protective guard film of 25 microns minimum to avoid scratches during transportation and should be supplied in single length upto 12 metre or as desired by Engineer-in-charge. The sheet shall be fixed using self drilling /self tapping screws of size (5.5x 55 mm) with EPDM seal, complete upto any pitch in horizontal/ vertical or curved surfaces, excluding the cost of purlins, rafters and trusses and including cutting to size and shape wherever required.

Providing and fixing hard drawn steel wire fabric of size 75 x25 mm mesh or other suitable size wire mesh to be fixed & firmly anchored to the concrete surface by means of “L” shaped mild steel shear key welded with existing reinforcement including the cost of materials, labour, tool & plants as approved by Engineer-in-charge

Steel work welded in built up sections/ framed work, including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer using structural steel etc. as required

In gratings, frames, guard bar, ladder, railings, brackets, gates and similar works

Providing, laying, testing & commissioning of 'B' class heavy duty G.I. pipe conforming to IS 1239 including welding, fittings like elbows, tees, flanges, tapers, nuts, bolts, gaskets etc. and fixing the pipe on the wall/ceiling with suitable clamp/support frame and painting with two or more coats of synthetic enamel paint of required shade complete as required .

Supplying, installation, testing and commissioning of 40 mm Brass Ball Valve having a design standard conforming to IS: 6912 GR FLB, rating:PN-25, two piece design lever operated i/c connection etc. completed as required i/c dismantling the damaged NRV etc. as required.

Supply, installation, testing & commissioning of 6mm dia ss wire rope complete with thimble, U clamp and termination for 30 meter high mast etc complete as reqd.

Performing and making core cutting in the existing RCC wall/Slab of 150 mm dia. Etc. Complete as required.

Overhauling & repairing of 25 HP, non clog sewage submersible pump i/c replacement of following spare parts such as SS Shaft sleeve, shaft key, DE/NDE ball bearing, mechanical seal, stud, thrust bearing, O ring, lube oil, i/c turning and facing on lathe machine, greasing etc I/c tro & fro cartage to work shop,return back to site etc as reqd.

Rewinding of of 25 HP ,3 phase non clog sewage submersible pump with superior quality of PVC insulated water proof copper wire, insulated paper, varnish, baking i/c connections & testing etc. Complete as reqd.

Dismantling and re-installation of 25 HP non clog sewage submersible pump after repair and rewinding i/c connections etc. Complete as required.

Disconnection of suction pipe up to 150 mm up to floor level, dismantling of existing unserviceable pump & lifting the motor and pipe with the help of tripod ,chain pulley block set ,reinstallation the same after repairing ,checking, connection etc complete as reqd at site.