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, installation, testing and commissioning of Trolley mounted with four wheels diesel engine driven Horizontal centrifugal Mix flow auto priming pump coupled with min. 127 HP engine mounted on heavy base frame suitable for automatic operation and consisting of following complete in all respects, as required: (Diesel Driven Pump) Pump Specifications:- a)70CFM or above. The pump shall have an independent vacuum system with air tight provision. Rubber hose shall be attached to this. The vacuum pump power shall be taken from the main drive itself and shall able to suck the liquid at the rate of 70 CFM vacuum pump should operate simultaneously with the main pump through the same prime mover making it feasible prime and reprime and release air as and when required with the help of float assembly (capable of online air intake and discharge). No other arrangement shall be allowed. b) Suction x Discharge:-300mm x 300mm c)Max. Suction lift:- 9 Mtr. or above d)Max. Solid handling:-70-75mm e) Performance:-1500 RPM, Flow:-1350m³/hr or above f)Head:-30 Mtr. or above Engine Specifications:- a) 4-cylinder, Radiator -cooled, naturally turbo charge aspirated diesel engine b) Capacity:-127HP @1500 RPM c) Starting: Electric with starter Motor, Charging Alternator,Oil bath Air cleaner, fuel Injection Pump,oil filter, engine mounted Exhaust Silencer,Manual shut Off, wire harness & starting Panel d)12/24Volt batterries of suitable size e) 1) Engine shall preferably be from the engine manufacturers who have ISO 9001 quality

2) Noise level should not be more than 75 dB at max 7 Mtrs. distance 3) Engine exhaust emission level shall comply with the latest revised emission norms of GOI. 4) The engine should have automatic belt tensioning arrangement for battery charging 5) The engine shall have facility for the indication of oil level in oil sump during running. 6) The engine water pump should be directly driven by engine system. 7) Spares and services should be available in the nearby area. Material of Construction:- a)- Impeller:-Standared SS-304 (Open Type) b)Pump Shaft:-Standared SS-431 c)Volute casing:-Standared FG-260 High grade cast iron with powder coating inside and outside. d) Priming Tank: Mild steel with powder coating inside and outside. The priming tank shall be provided with a heavy-duty automatic float valve suitable for continuous operation, to maintain the required water level for reliable pump priming. The float valve shall automatically control inlet water, provide positive shut-off to prevent overflow, and ensure automatic refilling. All components shall be made of corrosion-resistant materials suitable for raw water and outdoor service, properly sized for the tank capacity, leak-proof, easy to adjust and maintain, and compliant with applicable standards. No Foot Valve Shall be required on suction side. Priming and repriming should happen automatically without manual intervention. Pump should be 100% dry primimg, should not require any manual water filling.

e) Discharge Head: Mild steel f) Stuffing Box: High grade Cast Iron with double mechancial seal immersed in oil bath g) Mounting: Small Wheel trolley built-in fuel tank of MS. The pump shall be provided with a heavy-B14duty suction strainer, designed to permit the passage of solid particles up to 70–75 mm diameter without choking or restricting suction flow during operation. The suction strainer shall be adequately sized to ensure free flow of water, prevent ingress of oversized debris, and maintain minimum head loss with stable suction conditions under continuous duty. The strainer shall be manufactured from stainless steel of suitable grade, offering high resistance to corrosion, abrasion, and mechanical impact, and shall be suitable for handling raw water, sewage, sludge, debris-laden water, and site operating conditions. The strainer shall be provided with an industrial-grade powder-coated external finish to enhance protection against corrosion, environmental exposure, and handling wear, ensuring long service life h) Coupling: Fenaflexty Recoupling Silenced Canopy:-Without Canopy Trolley:- a) Type:-Heavy duty Tractor towed b)Towing Hook:-Heavy duty c) MOC:-Mild steel d)Paint :-Non-Corrosive Paint e) Tyre Size:-15inch 4 Nos.

Supplying, installation, testing and commissioning of diesel engine driven Horizontal centrifugal Mix flow auto priming pump coupled with min. 105 HP engine mounted on heavy base frame suitable for automatic operation and consisting of following complete in all respects, as required: (Diesel Driven Pump) Pump Specifications:- a)Vacuum Capacity:-70CFM or above b) Suction x Discharge:-200mm x 200mm c)Max. Suction lift:- 9 Mtr. or above d)Max. Solid handling:-70-75mm e) Performance:-1500 RPM, Flow:-900m³/hr or above f)Head:-32 Mtr. or above Engine Specifications:- a) 4-cylinder, Radiator -cooled, naturally turbo charge aspirated diesel engine b) Capacity:-105HP @1500 RPM c) Starting: Electric with starter Motor, Charging Alternator,Oil bath Air cleaner, fuel Injection Pump,oil filter, engine mounted Exhaust Silencer,Manual shut Off, wire harness & starting Panel d)12/24Volt batterries of suitable size e) 1) Engine shall preferably be from the engine manufacturers who have ISO 9001 quality

2) Noise level should not be more than 75 dB at max 7 Mtrs. distance 3) Engine exhaust emission level shall comply with the latest revised emission norms of GOI. 4) The engine should have automa c belt tensioning arrangement for ba ery charging 5) The engine shall have facility for the indica on of oil level in oil sump during running of 6) The engine water pump should be directly driven by engine system. 7) Spares and services should be available in the nearby area. Material of Construction:- a)-Impeller:-Standared SS-304 (Open Type) b)Pump Shaft:-Standared SS-431 c)Volute casing:-Standared FG-260 d) Priming Tank: Mild steel with powder coating inside and outside. The priming tank shall be provided with a heavy-duty automatic float valve suitable for continuous operation, to maintain the required water level for reliable pump priming. The float valve shall automatically control inlet water, provide positive shut-off to prevent overflow, and ensure automatic refilling. All components shall be made of corrosion-resistant materials suitable for raw water and outdoor service, properly sized for the tank capacity, leak-proof, easy to adjust and maintain, and compliant with applicable standards. No Foot Valve Shall be required on suction side. Priming and repriming should happen automatically without manual intervention. Pump should be 100% dry primimg, should not require any manual water filling. e) Discharge Head: Mild steel

f)Stuffing Box: High grade Cast Iron with double mechancial seal immersed in oil bath g) Mounting: heavy base frame with built-in fuel tank of MS h) Coupling: Fenaflexty Recoupling Silenced Canopy:-Without Canopy Frame:- heavy base frame suitable for automatic operation

Providing, laying, testing & commissioning of 'C' class heavy duty MS pipe conforming to IS 1239/Class -II of IS: 3589 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 :

300 mm dia (wall thickness 7 mm)

Providing, installation, testing and commissioning of non-return valve flanged end of following sizes confirming to IS: 5312 complete with rubber gasket, GI bolts, nuts, washers etc.as required :

300 mm dia (PN-16)

Supplying, fixing, testing & commissioning of double flanged sluice valve of rating PN 1.6 with non rising spindle, bronze/gun metal seat, ISI marked complete with nuts, bolts, washers, gaskets and conforming to IS 780 of following sizes as required :

300mm dia

Providing and Laying K-12 Ductile iron chamber restrained joint (bolt less) specials such as tees, bends, collars, tapers & caps etc. conforming to IS:9523 including testing of joints all complete (a) Upto 600mm nominal dia

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

Providing and laying in position specified grade of reinforced cement concrete, excluding the cost of centering, shuttering, finishing and reinforcement-All work up to plinth level

1:2:4 (1 cement : 2 coarse sand (zone-III) derived from natural sources : 4 graded stone aggregate 20 mm nominal size derived from natural sources)

Providing, laying, testing & commissioning of 'C' class heavy duty MS pipe conforming to IS 1239/Class -II of IS: 3589 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 :

200 mm dia (wall thickness 6.3 mm)

Providing, installation, testing and commissioning of non-return valve flanged end of following sizes confirming to IS: 5312 complete with rubber gasket, GI bolts, nuts, washers etc.as required :

200 mm dia (PN-16)

Supplying, fixing, testing & commissioning of double flanged sluice valve of rating PN 1.0 with non rising spindle, C.I. metal Bronze Body seat Ring, ISI marked complete with nuts, bolts, washers, gaskets and conforming to IS 780 of following sizes as required :

200mm dia

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

Performing and making core cutting in the existing RCC wall/Slab of 150/200 mm dia. Etc. Complete as required.