tender for chinnasevalai road to cuddalore road 3’’ pvc pipeinthiruvennainallur town panchayat. 1 earth work excavation for pipe and depositing on bank with initiallead of 10 m and lift of 2 m in narrow trenches for layingof pipes for water supply and sewerage works in thefollowing type of soils as directed by departmentalofficers such as hard stiff clay, stiff black cotton, hard red earth, shales, murram gravel, stoney earth and earth mixed with smallsize boulders and hard gravelly soil.one cubicmetre. 2 supplying and delivery of 110 mm dia pvcpipe with excise dutyas per is 4985 / 2000and 6 ksc pvc pipe includind all cost of materials and other charges etc complete complying with standard specifications ( 110 mm dia pvc pipe 6kg ) 3 lowering 110 mm dia pvc6ksc pipe and specials in the trenches and laying toproper grade and alignment and as directed by the department officers. ( 110 mm dia pvc pipe 6kg ) 4 refilling with excavated earth other then sand complying with standard specifications includingall labour charges etc.completed 5 supplying and delivery of 80 mm dia gipipe ( medium ) as per is 1239 / part i / 2004 includind all cost of materials and other charges etc complete complying with standard specifications ( 80 mm dia pipe ) 6 lowering 80 mm dia gipipe ( medium ) and specials in the trenches and laying toproper grade and alignment and as directed by the department officers.80 mm dia pipe ) 7 supply and delivery of di d / f gate valves ( soft seated ) resilient seated soft sealing gatevalves ( sluice valves ) with body bonnet of ductile cast iron of grade ggg40, wedge fullyrubber 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 vaccum tight and 100% leak proof with face to face dimentions as epr bs 5163-89 / isi 14846-2000 / din 3202 f 4. all the valves should be with electrostatic powder coating both inside and outside with pocket less all lthe valves are to be compatible for burried application with pressure rating pn 10 / 16. 8 10mm dia gate valve