Chennai Metropolitan Water Supply And Sewerage Board Tender

Making rubber joint for DI pipes for 200mm dia DI Pipe

Cutting of 200mm dia CI pipe

Supplying, conveying and fixing specials as per IS 1538/1986 including earth work excavation at any depth

200mm Dia 90⁰ Bend A/S (socket bend)

200mm Dia 90⁰ Bend D/F (Flanged bend)

200mm dia MJ Collar

Supplying, conveying and fixing valves as per IS 14846/2000 PNI including earth work excavation at any depth 200mm Dia Sluice valve

Jointing the C.I./D.I Double Flanged pipes and specials with rubber insertion to with IS-638 (1979) and M.S.bolts and nuts of IS 1364-1 (2002), including cost of Jointing materials such as bolt and nuts rubber insertion and labour charges Etc., complete

Supplying and fixing 750mm x 200mm dia saddle including Bolt and nuts, Rubber insertion etc

Testing of D.I. pipes with hydraulic testing equipment by filling with water (including cost of water @ Rs.73/KL) and testing to recommended pressure in convenient stetches and attending the bursts if occurred etc., complete for 200mm dia

Construction of Chamber for 200mm dia sluice valve including providing and fixing FRC frames and door size 60cm X 60cm for size 1.35 x 1.20 x 1.55m

Supplying and filling the trenches with Quarry dust including watering, consolidation, remming etc completed

Barrication work along one side of trench for laying the pipe line with casurina post at 1.52m centre to centre (8 to 10 cm dia and 1.52m height) verticals, painting the vertical post in different colours tieing with coir rope, fixing danger flags, danger lights, reflectors including watching during night etc., complete

Hire charges for 5.0 to 7.5 H.P. Diesel pump set for dewatering with fuel and crew charges etc.,

Disposal of surplus earth

Cement concrete 1:2:4 mix using crused stone sand (M-Sand) and 20mm gauge BG Jelly for P.C.C. works, including laying, ramming, curring, etc., complete

Electromagnetic Flow Meter shall be a velocity sensing Electromagnetic type,microprocessor based signal converter, sealed housing, flanged tube meter for 1.0Mpa 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 beuser friendly, self-prompting menu driven. Flow meter test calibration certificate from FCRI, flow test lab / NABL accredited lab to be furnished.

Supplying of Fibre reinforced concrete Frame and Cover as per type HD-20, IS 12592 600mm Dia heavy duty