Public Works Department-PWD has published Supply Installation Testing Commissioning Of Rotary Lobe Pump Sets And Related Equipments For Improvement Of Zakhira Rub Surrounding Area Under Nwed, New Delhi.. Submission Date for this Tender is 09-02-2024. Submersible Pump Tenders in Delhi Delhi. Bidders can get complete Tender details and download the document.
| Sl. No. | Item Description |
| 1 | Supplying, installation, testing and commissioning of pump Set for dewatering mixed flow consisting of storm water and sewage with positive displacement Rotary Lobe Pump, gerared motor, base plate ,pressure switches, level switches, VFD Based control panel with starters, automation panel with accessories, complete automation of rotary lobe pumps with VFD control Panel, protection relays, interlocking with level and pressure switches & fixtures meeting below mentioned specifications all complete as per direction of Engineer-in-Charge. A Rotary Lobe Pump • Insensitive to dry running ( capable of handling trapped air), Self-priming capabilities, over -0.9 bar and should not need repeated priming, • Adjustable housing segments, Changeable pumping direction (Reversible) • Cartridge Blockring Mechanical seal (single compact unit for quick, easy replacement and easy alignment) • 3 sets of Bearing for Zero Shaft Deflection, Lobes mounted between bearings. Overhung design is not allowed. • Lobes - Pulsation free geometry, Nitrile ButadieneRubber(NBR),Highflow • Pump Shall be with high resistance and should allow large free passage up to 90 mm size solids. Stepless Shafts • Shaft dia Pump Chamber: Minimum 85 mm • Housing segments: Grey cast iron GG 25 - 0.6025 /ASTM A48 • Wear plates: high wear resistant steel Grade • Seal type: Cartridge Blockring Mechanical Seal made of SS304/Cr2O3 / Duronite • Pump and motor are to be mounted on a heavy duty C-Channel baseplate fabricated out of of size not less than 125 x 65 x 6 mm, aligned with flexible coupling. Coupling guard made of MS Galvanised sheet of not les than 2mm, included. • Steel Galvanized Connectors, flange as per ASME B16.5 Raised Face (RF) Class 150# Technical-Specifications: Capacity-147-385 cum/hr (Minimum),VFD Range 25-29 Hz Suction Lift -5 mtr, Vertial head: 30m, Horizontal head: 600m, • Suitable for VFD operation for flow rate adjustment. •Flow rate of the system should be able to handle a discharge range of 147- 385m3/h when pump are operating. •Gate valve and Non-return Valve to provide with each pump as per Discharge pipe size. •Suitable arrangement in each pumping system to lift the waste water from the bottom of the Pit.B Geared Motor: • Motor: BBL/ABB/LHP or equivalent, Gearbox: Nord/Premium/ PBL or equivalent • Power: 55.0 kW • 4 Pole • Output rev.> 407 rpm at 50 Hz, Protection type:IP55,InsulationClass:F • Installation position: B3 (Geared Motor), Voltage: 3Ph/415V/50Hz, • Energy efficiency grade: Minimum IE3. Suitable for Variable Fequency Drive operation and can deliver upto 385 m3/h with a VFD complete etc as required. |
| 2 | Supplying, installation, testing and commissioning of Macerator/Xripperalong with electric control panel etc as reqd & fixtures meeting below mentioned specifications all complete as per direction of Engineer-in-Charge. XRipper • Double-shaft cutter of compact design meant for cutting coarse substances and solids in a fluid flow • Efficient protection from clogging and blockage which might occur in pipes, pumps, armatures • Economical treatment of solids in liquid media • Applicable with various coarse substances and solids • Vertically designed with directly mounted drive for pipe installation • Insensitive to dry running • Mechanical seal as cartridge-unit Materials and design • Rotor material: high wear resistant special steel • Blade width: 10.6 mm • Rotor design: monolithic • Housing segments: steel • Wear plates: high wear resistant special steel • Mechanical seal: blockring/duronite with NBR O-ring • Wetted O-Rings: NBR • Shaft diameter: 84 mm • Connectors: X-Ripper Connectors "straight" made of mild steel galvanized, DN 250 Combi-flange Parallel Shaft Geared Motor: • Motor: BBL/ABB/LHP or equivalent, Gearbox: Nord/Premium/ PBL or equivalent • Power: 4.0 kW • 4 Pole • Output rev. 38 rpm at 50 Hz, Protection type: IP55, ISO-class: F • Installation position: M4, Voltage: 3Ph/415V/50Hz, • 3 Thermistors • Energy efficiency grade: Minimum IE3. • Speed driven shaft: 38 rpm • Speed non-driven shaft: 37 rpm • The motor is mounted directly to the XRipper by a torque support made of mild steel painted. etc. complete as required. |
| 3 | Supplying, installation, testing and commissioning of pump Set for dewatering mixed flow consisting of storm water and sewage with positive displacement Rotary Lobe Pump, gerared motor, base plate ,pressure switches, level switches, VFD Based control panel with starters, automation panel with accessories, complete automation of rotary lobe pumps with VFD control Panel, protection relays, interlocking with level and pressure switches & fixtures meeting below mentioned specifications all complete as per direction of Engineer-in-Charge. A Rotary Lobe Pump • Insensitive to dry running ( capable of handling trapped air), Self-priming capabilities, over -0.9 bar and should not need repeated priming, • Adjustable housing segments, Changeable pumping direction (Reversible) • Cartridge Blockring Mechanical seal (single compact unit for quick, easy replacement and easy alignment) • 3 sets of Bearing for Zero Shaft Deflection, Lobes mounted between bearings. Overhung design is not allowed. • Lobes - Pulsation free geometry, Nitrile ButadieneRubber(NBR),Highflow • Pump Shall be with high resistance and should allow large free passage up to 90 mm size solids. Stepless Shafts • Shaft dia Pump Chamber: Minimum 85 mm • Housing segments: Grey cast iron GG 25 - 0.6025 /ASTM A48 • Wear plates: high wear resistant steel Grade • Seal type: Cartridge Blockring Mechanical Seal made of SS304/Cr2O3 / Duronite • Pump and motor are to be mounted on a heavy duty C-Channel baseplate fabricated out of of size not less than 125 x 65 x 6 mm, aligned with flexible coupling. Coupling guard made of MS Galvanised sheet of not les than 2mm, included. • Steel Galvanized Connectors, flange as per ASME B16.5 Raised Face (RF) Class 150# Technical-Specifications: Capacity-147-385 cum/hr (Minimum),VFD Range 25-29 Hz Suction Lift -5 mtr, Vertial head: 30m, Horizontal head: 600m, • Suitable for VFD operation for flow rate adjustment. •Flow rate of the system should be able to handle a discharge range of 147- 385m3/h when pump are operating. •Gate valve and Non-return Valve to provide with each pump as per Discharge pipe size. •Suitable arrangement in each pumping system to lift the waste water from the bottom of the Pit B Geared Motor: • Motor: BBL/ABB/LHP or equivalent, Gearbox: Nord/Premium/ PBL or equivalent • Power: 55.0 kW • 4 Pole • Output rev.> 407 rpm at 50 Hz, Protection type:IP55,InsulationClass:F • Installation position: B3 (Geared Motor), Voltage: 3Ph/415V/50Hz, • Energy efficiency grade: Minimum IE3. Suitable for Variable Fequency Drive operation and can deliver upto 385 m3/h with a VFD complete etc as required. |
| 4 | 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 : a) 250 m.m dia |
| 5 | Providing, installation, testing and commissioning of non-return valve of following sizes confirming to IS: 5312 complete with rubber gasket, GI bolts, nuts, washers etc.as required : a) 250 m.m dia |
| 6 | Providing, laying, testing & commissioning of "C" class heavy duty MS pipe conforming to IS 3589/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 : a) 250 mm dia (wall thickness 6.3 mm) |
| 7 | Laying and fixing of one number PVC sheathed XLPE insulated Al Conductor Armouredpower cable of 1.1 KV grade of following size on cable tray complete as required. a) 3.5 X 70 Sq.mm |
| 8 | Supplying and making end termination with brass compression gland and aluminium lugs for following size of PVC insulated and PVC sheathed / XLPE aluminium conductor cable of 1.1 kV grade as required. a) 3.5 X 70 sq. mm (38mm) |
| 9 | Supplying and installing following size of perforated painted with powder coating M.S. cable trays with perforation not more than 17.5%, in convenient sections, joined with connectors, suspended from the ceiling with M.S. suspenders including bolts & nuts, painting suspenders etc. as required. a) 100 mm width X 50 mm depth X 1.6 mm thickness |
| 10 | Earthing with G.I. earth pipe 4.5 meter long, 40 mm dia including accessories, and providing masonry enclosure with cover plate having locking arrangement and watering pipe etc. with charcoal/ coke and salt as required. |
| 11 | Providing and fixing 25 mm X 5 mm G.I. strip in 40 mm dia G.I. pipe from earth electrode including connection with G.I. nut, bolt, spring, washer excavation and re-filling etc. as required. |
| 12 | Providing and fixing 25 mm X 5 mm G.I. strip on surface or in recess for connections etc. as required |
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