Tender For Drought Mitigation Works -Supply And Erection Of 200 Mm Dia Di Surge Control Valves In 1000 Mm, 900Mm & 800Mm Existing Psc Pipes Under Cwss To Dindigul Corporation 6 Town Panchayats And 636 Rural Habitations In Dindigul District With Cauve
Tender Overview
Project Description
Tender for Drought Mitigation Works -Supply And Erection Of 200 Mm Dia Di Surge Control Valves In 1000 Mm, 900Mm & 800Mm Existing Psc Pipes Under Cwss To Dindigul Corporation 6 Town Panchayats And 636 Rural Habitations In Dindigul District With Cauvery River As Source (Sdrf Fund)-Package Iv - From Eriodu To Dindigul Reach (Construction Period: One Month And Trial Run: One Month)
Corrigendum
| Sr No | Corrigendum Date | Corrigendum | Type | New Submission Date |
|---|---|---|---|---|
| 1 | 20-Aug-2026 | Tender Extension | Date | 28-Aug-2026 |
BOQ
| Sl. No. | Item Description |
| 1 | Drought mitigation works -Supply and Erection of 200 mm Dia DI Surge Control Valves in 1000 mm, 900mm & 800mm Existing PSC Pipes under CWSS to Dindigul Corporation 6 Town Panchayats and 636 Rural Habitations in Dindigul District with Cauvery River as Source (SDRF Fund)-Package IV - From Eriodu to Dindigul Reach (Construction period: One month and trial run: one month) |
| 2 | Package IV - From Eriodu to Dindigul Reach |
| 3 | Total Basic Value |
| 4 | Add GST @18% on Basic Value |
| 5 | Manufacturing, supply and delivery of DI diaphragm type surge control valve against power failure surges or pressure waves caused by velocity changes, quick opening relief easily adjustable pressure setting. The valve should remain closed when line pressure is between the set-points of the two pilots. The valve should open initially when line pressure drops below the setting of the low-pressure pilot to anticipate surges associated with a pump stopping. The valve will also continue to react and remain open when the return high-pressure wave is above the setting of the high-pressure pilot or open when inlet pressure exceeds a pre-determined set point at which time the valve opens quickly, With high speed discharge, with flange dimension to EN 1092-2/ ISO 7005[DIN]. Body and cover in ductile cast iron of Grade GGG 40 (or) GGG 50. All internal parts & all cover bolts of austenitic alloy steel and gaskets and seals of EPDM of grade W 270(approved for drinking water) with Electrostatic epoxy powder coating (EP-P) inside and outside color blue RAL 5005 with minimum coating thickness of 250 microns” and with 5 years warranty etc., complete and as directed by TWAD Board Officers |
| 6 | 200mm Dia DI Surge Control Valve |
| 7 | Supply and delivery of DI D/F Gate (sluice) valves (soft seated) resilient seated soft sealing Gate Valves (Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or GGG 50, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163-89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and outside with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty etc., complete and as directed by TWAD Board Officers |
| 8 | 200 mm dia DI Sluice Valve PN 10 |
| 9 | Supply and delivery of following sizes of DI Specials conforming to IS specifications inclusive of transportation charges anywhere in Tamilnadu etc., complete and as directed by TWAD Board officers. |
| 10 | 200mm DI D/F bend |
| 11 | Supply and delivery of the following sizes of Ductile Iron Class PN10 Flanged Pipes as per IS 8329/2000 including transportation charges to stock yard excluding unloading any where in Tamilnadu etc., complete and as directed by TWAD Board officers |
| 12 | 200 mm dia PN10 DI D/F pipe - 4 mtr pipe/each |
| 13 | Jointing the 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 and as directed by TWAD Board officers |
| 14 | Jointing of 200 mm dis DI D/F Pipes and specials |
| 15 | Supply and Delivery of MS pipes Spiral/Longitudidnal welding as per Table- 5 of IS 3589/2001 fabricated with Fe410 grade steel conforming to IS 3589:2001 and other allied codes inclusive of Transportation charges to stockyard excluding unloading anywhere in Tamil Nadu etc., complete and as directed by TWAD Board officers |
| 16 | 219.10 mm dia x 6.30 mm Thick MS Pipe - 1 mtr per each |
| 17 | 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board) etc., complete and as directed by TWAD Board Officers |
| 18 | Erection Charges for DI diaphragm type surge control valve, DI D/F pipe Fixinging in value outlet, MS barre pipe with flange Facrication & Fixing and Jointing with Existing Pumping Main along with its alied bold nut & Erection of Sluice value at site including cost of Labour Charges etc complete and as directed by TWAD Board officers (As per Annexure) |
| 19 | 200mm Dia DI Surge Control Value |
| 20 | Earth work excavation and depositing on bank with initial lead of 10 m and lift of 2 M in narrow trenches having bed width 1.25m & below for laying of pipes for water supply in Hard stiff clay, stiff black cotton, hard red earth, shales, murram gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil etc complete and as directed by TWAD Board officers |
| 21 | Refilling with excavated soil ( Other than Sand) complying with the standard specification for filling the trenches etc., complete and as directed by TWAD Board officers. |
| 22 | Supply and Delivery of MS pipes Spiral/Longitudidnal welding as per Table- 5 of IS 3589/2001 with internal lining and external coating made with FE410. Pipes shall be internally lined with plant applied cement mortar lining 1:2, The Lining thickness range from 6 mm to 12 mm as per Table -8 of IS 3589:2001 and other allied codes. Pipes shall be externally coated with Coal Tar Enamel Wrapping Tape as per IS 15337:2013 inclusive of Transportation charges to stockyard excluding unloading anywhere in Tamil Nadu etc complete and as directed by TWAD Board officers |
| 23 | 813X18 mm MS Pipe |
| 24 | Charges for single sleeved or swelled joint sleeve circumferential welding / butt welding making small angular deviations for the joint of following size of MS pipe of various thickness with one end socket and other end spigot by inserting the spigot end into the sleeve end exactely after properly cleaning, preparing the surface and welding as per IS 3589 (2001) using suitable welding electrode as per IS 814 (Part 2) -1974 (E6010 /E6011/E7016/ E76018) for required thickness. Welding shall be done so that there shall be thorough fusion and complete penetration. Prior to welding, the ends of the pipes shall be fitted closely and they shall be held firmly while welding. Welding the joints shall be done both inside and outside of the pipe of 600mm diameter and above and the joints shall be neatly grinded and finished without any undulations. The cost of welding shall include surface preparation, suitable branded welding rod, hire charges for suitable capacity of portable welding machine with suitable electric power generator, Gas cutting equipments with all accessories, labour charges for skilled welder and helper including providing inside lining/epoxy coating as per IS 13620-1993 and outside coating with cement mortar of 20mm thick as per IS 1916-1989 & IS 7322-1985 and all other incidental charges etc complete and as directed by TWAD Board officers |
| 25 | 813X18 mm MS Pipe |
| 26 | Jointing the MS pipes and specials with neat cement or cement mortar and spun yarn including caulking the joints, curing (including cost of jointing materails ) etc., complete and as directed by TWAD Board Officers. |
| 27 | 813X18 mm MS Pipe |
| 28 | Providing thrust blocks in RCC 1:1.5:3 using 40 mm HBG stone including earth work excavation, sand filling, P.C.C.1:4:8, cost of centering, shuttering and GI strutting and reinforcement, laying of concrete, curing and finishing etc complete and as directed by TWAD Board Officers - using M sand |
| 29 | 813X18 mm MS Pipe |
| 30 | 200mm DI D/F bend - 90 degree |
| 31 | Construction of masonry valve pit as per TWAD Type design including fixing the valves including earth work excavation for foundation, P.C.C. 1:4:8 using 40mm HBG metal for levelling course, brick work in CM 1:5 for side wall, plastering with CM 1:3, 12mm thick, RCC 1:1.5:3 using 20mm HBG stone jelly for cover slab, PCC 1:3:6 using 20 HBG including supply, fabricating and placing of RTS grills for the following valves, charges for precasting and fixing surface box, valves and specials in position, refilling the sides of the pit etc., complete and as directed by TWAD Board Officers - using M sand |
| 32 | 200mm Dia DI Surge Control Valve Please Enable Macros to View BoQ information Erection charges for the Surge control valve and pipe erection SI No Descreption Unit Qty |
| 33 | Erection Charges for DI diaphragm type surge control valve, DI D/F pipe Fixinging in value outlet, MS bare pipe with flange Facrication & Fixing and Jointing with Existing Pumping Main along with its alied bold nut & Erection of Sluice value at site including cost of Labour Charges. a Fitter - Mechanical including welder (Class II) Nos 4.0 b Helper - Mazdoor Category I Nos 7.0 c Electrician (Mason Class I) Nos 1.0 e Hire charge for Pockline for lifiting work Hr 36.0 f Dewatering using 3HP diesel engine pumpset including Hire charges, cost of Diesel, Engine oil, pump operator, labour charges, conveyance of pumpset and fuel to site and back, loading, unloading and any other incidental charges etc., complete. Hire charges for Diesel Pump set for 3 HP (3*36 = 108 Hrs) Hr 108.0 |
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