Chennai Metropolitan Water Supply And Sewerage Board Tender

Providing Iron Barricading of size 2.50 m width and 1.75 m height using 40x40x4 mm angle for outer frame supports, 25 x 25 x 3 mm angle for inner frame supports and 20 gauge thickness MS sheet for name board (as per drawing) including cutting, welding, fabrication charges and one coat of primer and 2 coats of enamel paint of approved quality, writing "METRO WATER" & work detail/ caution sign, providing necessary interlocking arrangements with adjoining units, fixing danger flags, danger lights, reflectors, fixing stickers etc, including watching during night and placing the barricading units as directed at the sites

Supplying delivery and fixing of the following specials ( IS 1538/1986 )

100 mm A/s Ø 22 1/2 degree bend

100 mm A/s Ø 45 degree bend

100 mm A/s 90 degree bend

100 mm Ø MJ Collar

400x400x100 mm D/F Tee

Cutting D.I. mains

100mm dia

400mm dia

Making Rubber joints

100mm Ø specials

400 mm DI Tees

Construction of thrust blocks using Cement Concrete 1:3:6 ,40mm B.G.jelly for Plain Cement Concrete for at 2.0 m depth.

100 mm A/s Ø 22 1/2 degree bend

100 mm A/s Ø 45 degree bend

100 mm A/s Ø 90 degree bend

Hire charges for diesel pumpset 5HP with fuel and operator charges including transportation.

Testing of D.I.pipes with hydrulic testing equipment by fillling with water and testing to recommended pressure in convenient sretches and attending the bursts if any occurred during the test, excluding the cost of pipes, including other incidental and operational charges,etc., complete.

100mm Ø Pipes

Supply,delivery at site, conveying and fixing of CI sluice valves (PN 1.0) of following sizes conforming to IS: 14846/2000 including tail pieces including loading, unloading, Transportation charges and stacking etc complete as per specifications.

Construction of chamber for 100mm to 250mm dia. sluice valve including providing and fixing FRC cover and frame of size 60 x 60cm for size 1.35 x 1.2 x 1.55 m

Construction of Air Valve chamber of size 1.2mx0.9mx1.8m for fixing 80 mm dia Air valve.

Cement concrete 1:3:6 using 40mm gauge hard broken stone jelly for plain cement concrete works including laying, compacting, curing etc., complete for making road restoration work.

Hire Charges for DG sets 20 KVA for uninterrupted power supply to carry out work such as power breaking, lighting arrangements, dewatering, etc.

Operating of DG sets uninterrupted power supply to carry out work such as power breaking, lighting arrangements, dewatering, etc.

Supplying ,delivery ,conveyance and fixing of the following DI of specials ( Air Valve )

100 X 100 X 100 MM Double socket flanged Tee

100 MM Sluice valve

100 X 80 MM Reducer

80 MM Air valve

Electromagnetic Flow Meter shall be a velocity sensing Electromagnetic type, microprocessor based signal converter, sealed housing, flanged tube meter for 1.0 Mpa working pressure, manufactured to highest standard available for mag-meters, equipped with minimum six digit digital totalizers, reading in different units (Kiloliters / Cubic meter) and shall be accurate within 0.5% of Measured value, shall operate within a range of 0.3 m/sec to 4 m/sec and be constructed as follows: Meter tube (Sensor) shall be fabricated from stainless steel tube and use class PN10 flat face carbon steel flanges in accordance with IS 1538. These flanges shall be welded to the flow tube. The internal and external of the meter tube shall be blasted to near white and lined with hard rubber/ Polyurethrene/ PTFE preferably by SBR or EPDM. Meter tube shall have a constant nominal inside diameter offering no obstruction to the flow. The accuracy should be inclusive of linearity, hysteresis, repeatability, temperature and pressure effects. Coil Housing shall be fabricated from stainless steel (SS304)/ Die cast Aluminium/ Carbon steel with anticorriosive paint for corrosion resistance and welded to the tube providing a completely sealed environment for all coils, electrode connections and wiring harness capable of submerged or buried operation with IP68 Protection. Signal Converter shall be pulsed DC coil excitation type with auto zeroing. The signal converter shall be remotely mounted away from the meter. The converter shall indicate direction of flow and provide a flow rate indication and a total of flow volume for both forward and reverse directions. The converter shall provide an isolated 4-20 mA output into minimum 500-ohm load and a frequency output of a maximum of 0-10 KHZ and a scaled pulse output. The microprocessor based signal converter shall have a self-diagnostic test mode and a backlit display that continuously displays “Rate of Flow” and “Total Volume”. Converter shall be supplied with a programmable low flow drop out, higher flow and empty pipe zero return. The signal converter housing should be die-cast aluminum with glass window. The converter cum transmitter should be fully programmable from the front facia. The programming should be user friendly, self-prompting menu driven. Flow meter test calibration certificate from FCRI, flow test lab / NABL accredited lab to be furnished.

80 MM Meter

Supplying ,delivery ,conveyance and fixing of the following DI of specials ( Flow Meter )

100 mm DI pipe double flange ( 500 mm length )

100 MM DI pipe double flange ( 1500 mm length )

100 mm flanged spigot tail piece

100 MM Flanged socket tail piece

100 MM Dismantling Joint

Construction of Water meter chamber-100 mm size including providing and fixing FRC cover

The Contractor must obtain the existing Static GCP points from CMWSSB which should be considered as the control point with known coordinates X, Y and Z. Survey consultant to ensure the closing error is within permissible limits (SoI Standards) while transferring the levels from the existing Static GCP points and the same to be presented as a report. The same process shall be adopted for random verification of positional accuracy of points established using the PBMs as base. As built survey for every sewage and water pipeline and other assets must be done using DGPS based RTK method by transferring the coordinates from the nearest Static GCP of CMWSSB. Where there are signal interruptions for the RTK method, Total Station can be used. The coordinates from the static GCP shall be transferred to the Total Station by RTK method and the co- ordinates of the assets can then be captured by Total Station. All the features, attributes of all the assets, utilities captured shall be Geo referenced as per standard Coordinate reference system (WGS 84 UTM Zone 44N). The final base map with assets and utilitiesshall be furnished in (.shp) format. The geo referenced assets and utilities along with the attributes (as specified by the GIS Wing, CMWSSB) shall be converted into proper geo database (FGDB / PGDB) with the attributes. One set Hard and Soft Copy of all the CMWSSB assets and utility has to be prepared category wise network wise in A0 Print for verification in a print scale of 1:1000 in A0 plot, with standard legends in international and NUIS standards and should be legible and three sets of final Hard Copy in A0 print. (a) For the Underground / Surface Assets along the roads for the distance ranging from:

Incidental charges during execution of work along pipe laying for deep sewer gravity main, pumping main, HT/LT cables, Network cables, House service connections etc complete.

Providing 160 mm dia PVC - 10 KSC casing pipes across SWD

Hire charges for power breaker to dismantle the side walls of SWD

Cement concrete 1:2:4 using 12 to 20mm gauge hard broken stone jelly for plain concrete work including laying compacting curing, etc., complete.

Sub Total

GST @ 18%