Public Works Department-PWD has published Tender For Urgent Shifting And Replacement Of 100Mm Dia Ms Pipeline At Newly Constructed Bridge At Hodar In Ccmc In Curchorem Constituency (Deposit Work).. Submission Date for this Tender is 07-06-2023. Pipe Laying Tenders in margao Goa. Bidders can get complete Tender details and download the document.
| Sr No | CorrigendumDate | Corrignedum | CorrigendumType | NewSubmissionDate |
| 1 | 24-May-2023 | Bid Auto Extn Corrigendum | Bid Auto Extn Corrigendum | 07-06-2023 |
| Sl. No. | Item Description |
| 1 | Supplying stacking at site and conveying hoisting, laying in position to correct line and level and linking joints of MS specials.fabricated from MS plate including cutting, bending, welding, procurement of plates, gas cutting to required size, rolling,tackwelding, assembling in suitable length toform special, welding on automatic machine and forming V edge on both ends of special as required,hydraulic pressuretest at factory to therequired test pressureconformingto IS : 3589-1991 including freightetc. complete |
| 2 | With 10 mm -12 mm thick plate |
| 3 | Tees, bends, reducers, |
| 4 | Supplying at store or site of work including railway freight, carting, loading, unloading, stacking etc. C. I. Sluice valve conforming to IS :14846-2000 and bearing ISI mark double flanged with cap. TYPE P.N. 1.0 (Class B ) |
| 5 | 50mm dia |
| 6 | 100mm dia |
| 7 | Supplying cast iron fittings as perIS : 1538 -1993 including sealing rubber gasket (NR) CI Compression glands and coated MS Nuts bolts. |
| 8 | Mechanical CompressionCollar Coupling |
| 9 | 150mm dia |
| 10 | Flanged Socket Tail piece ( Flanged Adaptors) |
| 11 | 100mm dia |
| 12 | 150mm dia |
| 13 | Supplying at store or site of work including railway freight, carting, loading, unloading, stacking etc. C. I. Double orifice type air valveas per fig DS1 withinbuilt isolating valve smallwith SS spindle and CI protective cap confirming to IS1 4845/2000 (with latest amendments).Low pressure large orifice chamber with vulcanite coated timber ball resting on moulded rubber seating and chamber having CI cowl protection.High pressure chamber shall have rubber coated timber ball as float having Float guides; and LTB or SS orifice nippleThe body seat ring shall be of LTB as per IS 318 LTB2 or of SS. All nuts /bolts shall be of carbon steel of SS. The flange shall be drilled and faced ,as per IS1538(part 4 &6) suitable to working pressure of 10 kg /cm2 TYPE P.N. 1.0 (Class B) |
| 14 | 50mm dia |
| 15 | Cutting the bituminous road for laying the pipeline in trenches for a width of 0.6mincluding labour, tools, etc. and disposing the excavated excess material from the trench to a distance of 1000 metres, including making level the trench surface by utilising the serviceable material to the level of the top surface of road,by compacting, watering ramming with rolling with road rollerafter completion of laying of pipe and refilling the trenches etc. complete as per the direction of engineer in charge. |
| 16 | By Manual Means : |
| 17 | District Road, State highways, National highwayand roads of similar standards |
| 18 | Earth work in excavation by mechanical means (hydraulic excavator)/manual means in foundation pipeline trenches, drain not exceeding 1.5m in width 10 sq.mon plan including dressing of sides ramming of bottoms for all lead and liftincluding setting out the excavated soil & disposal of surplus soil with all leadincluding providing barricading danger lighting guarding as directed by departmental officer in all typesstrata comprising any of the materials such as soil, silt sand clay gravel moorum of all conglomerated laterite rock, soft rock fissured shattered decomposed rock or weathered rock and all such other materials as described under Appendix A to these specification either in full or in parts as the case may be adopting any approved method of methods as may be convenient or permitted inclusive of chiselling, wedging etc, blasting probhibited in all conglomerates as directed by the Engineer-in-charge etc, complete. |
| 19 | Conveying carefully from stack at site, 250m from both sides rolling and lowering in trenches, laying and jointing true toline and level and perfect linking of joints |
| 20 | S&S flanged/plain ended specials |
| 21 | Providing and laying three coat of anticorrosive and anti-toxic surface coating for MS pipeline. The paint shall be applied after removing the scales and rust over the pipe by wire brush. Paint shall be applied uniformly to achieve uniform coating of average DFT of 60 microns per coat with the brush. 2nd coat shall be applied over the 1st coat after 8 hrs. the process shall be repeated for the 3rd coat. DFT for the final coat shall be 35 microns. Final surface shall be uniform and shall have total thickness of about 150 microns. The rate is inclusive of material, transportation up to the site of work including, labour, machinery as required etc. complete. All three coats shall be of distinctive colour as approved be Engineer-in- charge. |
| 22 | Fixing C.I. Double orifice / Kinetictype air valve of following sizes with bronze ferrule at inlet screwed on isolating valve small orifice elastic ball resting valve small orifice elastic ball resting on small bronze orifice nipple and large orifice vulcanite ball resting on moulded seat ring inlet faced and drilled to BST "D" suitable to working pressure of 10 kg/sq. cm. |
| 23 | 50mm dia |
| 24 | Making flanged joints for C.I./D.I. Pipes and specials with rubber insertion, nuts and bolts including necessary hydraulic testing etc. complete including cost of rubber insertion nuts and bolts, as directed by the Engineer in-charge. |
| 25 | 100mm dia |
| 26 | Making joints to D.I/ C.I pipes with mechanical joints by nut bolts rubber rings that are provided with the joints, forpushon tight joints including the cost of work force, tools, hydraulic testing of joints, etc. complete as per the direction of the engineer in-charge. |
| 27 | Double socketed specials such as bends, collar couplings etc |
| 28 | 150mm dia |
| 29 | Making joints to D.I/ C.I pipes with mechanical joints by nut bolts rubber rings that are provided with the joints, forpushon tight joints, and including the cost of rubber ring, nut bolts, for flanged joint, including the cost of work force, tools, hydraulic testing of joints,etc. complete as per the direction of the engineer in-charge. |
| 30 | Flanged Socket |
| 31 | 100mm dia |
| 32 | 150mm dia |
| 33 | Rubble packing with hard laterite stone under floors including watering ramming and consolidating etc. in pipeline trenches and other foundations complete. |
| 34 | Providing & laying cement concrete 1:2:4 (1 cement: 2 coarse sand: 4 graded granitic or basaltic stone aggrt. 20 mm. nominal size) excluding cost of centering, shuttering and finishing in: |
| 35 | All works upto plinth level |
| 36 | Hoisting laying cast iron sluice valves/butterfly valves/reflux valve of size given below at location in pipeline etc. complete as directed as perIS:2685-1971 CLASSI |
| 37 | 100mm dia |
| 38 | Construction of masonry chamber 90x90x100 cm inside in 40kg/sq. cm brickwork complete with 23 cms wall thickness and in cement mortar 1:4( 1 cement : 4 coarse sand) for sluice valve of sizes 100 mm, 120 mm 150 mm and 200mm diawith necessary excavation, foundation concrete 1:5:10 ( 1 cement : 5 coarse sand: 10 graded stone ballast 40 mm nominal size) andinside plastered with CM 1:3 ( 1 cement : 3 coarse sand)finished with floating coat of neat cement complete and chamber cover as specified below etc. all complete as per standard drawing . (rate is inclusive of rate earthwork excavation, cost of surface coverand all other materials and labour and as per details below |
| 39 | Without surface box and with 120 mm thick R.C.C. slab coverin cement concrete 1:2:4 ( 1 cement: 2 coarse sand: 4 graded stone ballast 20 mm nominal size) |
| 40 | Refilling the pipeline/foundation trenches plinth sides, foundation etc. with available excavated earth in layers not exceeding 20 cm depth consolidating each layer ramming and watering lead upto 50 M and all lifts and disposal of surplus earth as directed by Engineer in Charge. |
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