Supplying and Laying of 300mm dia CI pumping main from Border Thottam SPS to ICE House SPS in Depot 114, Area IX

Supplying, delivery, conveying and laying of C.I. S/S pipes (A class) with EDPM rubber gaskets conforming IS code 1536/2001 including earthwork excavation for trenches in hard stiff clay, blackcotton, hard red earth, shales, murams, gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil depositing the earth on banks with initial lead of 10 m and initial lift of 2m, lowering into the trenches, aligning, refilling the trenches with excavated soil, watering and ramming to consolidation, etc., and testing to recommended pressure in convenient stetches and attending the bursts if any occured during the test, excluding the cost of pipes, including other incidental and operational charges, etc.,

300mm dia at an avg. depth of 1.5m Non Bus Route

300mm dia at an avg. depth of 1.5m Bus Route Road

Supplying,Conveying and fixing specials, CI specials conforming IS code no 1538/1986 including earth work excavation etc complete

300mm D/Soc CI 90 deg bend

300mm D/Soc CI 45 deg bend

300mm D/Soc CI 22.5 deg bend

300 mm CI collars

Supplying,Conveying and fixing specials, CI specials conforming IS 14846/2000 PN 1 WITH ISI MARKING including earth work excavation etc complete

300 mm dia Sluice Valve

80mm dia CI Double air valve

80mm dia Sluice Valve

300 mm x 80 mm D/Soc/Fl Tee CI Specials for 80 mm Air valve

80 mm dia CI Double Flanged pipe

300 mm dia CI Double Flanged pipe

300 mm DI Fl/ Soc tail piece

300 mm DI Fl/ Spi tail piece

300 mm CI cut Pipe 1 m

Cutting of CI pipes 300 mm dia

Jointing the C.I. Double flanged pipes and specials with rubber insertion to the required specifications with M.S. bolts and nuts (including cost of jointing materials) and labour cost etc. complete

Cutting Asphaltic road using Power Breaker Machine

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.

Testing of CI/DI pipes with hydraulic testing equipment by filling with water and testing to recommended pressure in concerned stretches and attending the burst if any occured during excluding cost of pipe, but including other incidental charges etc;

300mm dia Pipes

Providing thrust blocks with Plain Cement Concrete in 1:3:6 with 40mm HBG for the DI pumping main including the cost of shuttering, compaction, curing etc. complete.

300mm CI D/S 90 deg bend

300mm CI D/S 45 deg bend

300mm CI D/S 22.5 deg bend

Hire charges for disel pumpset 7.5 HP

Construction of Valve Chamber

Construction of Sluice Valve Chamber of following sizes in second class brick work in CM 1:4 proportion with 12 mm thick outside plastering and 20mm thick inside plastering in CM 1:3 proportion, RCC cover slab in CC 1:2:4 proportion using 20 mm jelly, chamber foundation and bed block in PCC 1:3:6 proportion using 40 mm jelly including cost of reinforcement and labour charges, CI steps, etc. as per drawing including providing and fixing L.S. cover and frame of size 60cm x 60cm including necessary masonry work and plastering etc., complete.. 300mm dia

Construction of 80mm Double Air Valve chamber for 100mm to 350mm dia.pipeline including providing and fixing FRC cover and frame of size 60 x 60cm for size 1.2 x 0.9 x 1.8 m

Supply and Filling Crushed stone sand M Sand for Foundation and basament watering consolidating ramming etc..

Cement concrete 1:1 ½:3 using 20mm gauge hard broken stone jelly for reinforced cement concrete works excluding cost of steel, centering, shuttering and cost of steel reinforcement but including laying in position, compacting, curing, finishing, etc., complete

Supply, delivery, erection, testing and commissioning of 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 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) 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, Communication interface is RS485, HART 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 form 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.

Supply, conveying and fixing CI D/F pipes as per IS:1537 and CI SS/DF specials like Tee, Bends ,Tapers and Tailpieces as per IS 1538 including earthwork excavation, lowering into the trenches, aligning, refilling the trenches with excavated soil, watering and ramming to consolidation, etc. at any depth.

Specials for mm Electromagnetic Flow Meter

300 mm F/Spi Tail Piece

300 mm F/Soc Tail Piece

300 mm D/F Pipe -0.6mlong

300 mm D/F Pipe -1.5mlong

Construction of water meter Chamber in second class brick work in CM 1:4 proportion with 12mm thick outside plastering and 20 mm thick inside plastering in CM 1:3 proportion, RCC cover slab in CC 1:2:4 proportion using 20 mm jelly, chamber foundation and bed block in PCC 1:3:6 proportion using 40 mm jelly including cost of reinforcement and labour charges,earth work excavation,sand filling,refilling and disposal of surplus earth ,fixing CI steps, etc. complete and including providing and fixing L.S cover and frame of size 60cmx60cm including necessary masonry work and plastering etc complete as directed by the Engineer at site as per specification of sizeas mentioned below

Jointing the CI specials with molten lead and yarn including caulking the joints and testing to the required pressure with water. (Including cost of Jointing materials)

Jointing the double flanged specials with rubber insertion to the required specifications with M.S bolts and nuts, complete.

RTK Survey

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 utilities shall be furnished in (.shp) format. The geo referenced assets and utilities along with the attributes(as specified by the GIS Wing, CMWSSB) shall beconverted into proper geo database (FGDB / PGDB) with the attributes. One set Hard and Soft Copy of all the CMWSSBassets and utility has to be prepared category wise network wise in A0 Print for verification in a print scalebof 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.

Additional works for SWD crossing

Providing 400 mm HDPE Pipe 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.

Repacking of side walls of SWD

Sub Total (excluding GST)

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