Providing Additional Water Supply Arrangement to Government model school campus ,Thuvakudi ,Tiruchirapalli

Amount

Supply , delivery and fixing HDPE pipes-PE 100 as per IS 4984/2016 and as amended from time to time and bearing ISI marking of the following sizes for delivery at site of work excluding all taxes but including loading,unloading freight etc complete.

75mm HDPE PN6 PE 100 PIPE

Supply and delivery of following sizes of HDPE specilas as per IS 4984/2016 and as amended from time to time and bearing ISI marking of the folllowing sizes for delivery at site of work excluding all taxes but including loading,unloading,freight etc complete.n

75mm HDPE PN6 PE 100 Pipe Tee

Earth work excavation and depositing on bank withinitial lead of 10m and lift of 2.00m in narrow trenches 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 SS.20B with standard width and depth of trench (vide chapter IV -"pipe laying works" of the technical specifications Booklet) including shoring,strutting and bailing out water and all other incidental charges such as barricading providing dager light etc and as directed by the TWAD Board officer. Note: For Earthwork excavation in SDR, DMR, HR etc., linear measurement rate may be worked out seperately and to be approved by the SE concerned after verification of soil classifications by putting trial pits at closer intervals. (B.P.Ms. No. 82/ CoM wing/ Dt: 22.08.2008)

75mm HDPE PN6 PE 100 PIPE

Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and alignment and as directed by the TWAD officiers pg.no.171

75mm HDPE PN6 PE 100 PIPE

Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by Department Officers. (TWAD SOR 2022-2023, Pg 279)

75mm HDPE PN6 PE 100 PIPE

Testing of MS/CI/DI/PVC/HDPE Pipes with hydraulic testing equipment by filling with water (including cost of water @60/kl) and testing to recommended pressure in convenient stretches and attending the burst if any occurred during the text excluding the cost of pipes including other incidental operational charge etc complete for the following diameters of pipes.

75mm HDPE PN6 PE 100 PIPE

Refilling the trenches with excavated earth (other than sand) in layers and watering, ramming and consolidation as per standard specification after the pipes and specials are laid jointed and tested to the required pressure and depositing the surpllus earth at places as directed by TWAD Board officers.

75mm HDPE PN6 PE 100 PIPE

Jointing 80mm GI Pipe flange pipe with rubber insertion with IS 638(1979) and MS bolt and nuts of IS 1364-I(2002) Including cost of jointing materials such as bolt and nuts rubber insertion and labour charges etc.,complete.

80mm GI pipe jointing

Supplying and delivery of following UPVC Pipes and specials etc., complete as per standard specification

75mm UPVC Pipe

75mm UPVC Elbow

75mm UPVC MTA

Supply and fixing of brass gate valve 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 out side 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 warrantyetc., complete as per standard specification

Plain Cement concrete 1:4:8 (One cement,four sand, eight aggregate) using 40mm ISS HBG metal including cost and conveyance of all charges etc., complete as per standard specifications.

Plain Cement Concrete 1:2:4 (one cement, two Crushed Stone Sand (M- Sand) and four coarse aggregates) using 20mm size ISS HBG metal including cost and conveyance of all materials to site and including for the mixing, laying and labour charges etc., complete as per standard specification

Labour charges for cutting of B.T road or WBM roads for laying of mains and as directed by Engineer in charge. (TWAD SOR 2024-2025, Pg 195)

BT CUTTING

Interconnection arrangements for sumps includiong labour charges cost and conveyance etc.,

M/s. AT Engineering Construction (BID ID -1418146)