R/ Mtc. of Drinking Water Supply Schemes under Old Agartala R.D Block under the jurisdiction of PWD (DWS) Sub-Division, Jirania / SH Maintenance of Pipe line, Repairing Leakages in Pipe line and other allied works during the year 2025-26.

Excavating trenches of required width for pipes, cables etc. including exacavation for sockets, dressing of sides where required, ramming of bottoms, depth upto 1500 mm (slope-1 in 200) including getting out the excavated soil and backfilling of soil as required after laying of pipeline, in layers not exceeding 200 mm in depth including consolidating each deposited layer by ramming, watering etc. and disposing of surplus excavated soil with all required leads as per Chapter - 2 of CPWD specification and direction of the Engineer - in - charge.

A) For UPVC pipes in new work. a. All kind of Soils i) For pipes not exceeding 90 mm dia

Providing, fixing and laying rigid UPVC pipes conforming to IS : 4985 jointing with couplers, of same class conforming to IS : 10124 ( Pt-II ) with solvent cement conforming to IS : 14182 including testing of joints complete (but excluding the cost of specials like bend, tees etc. which will be paid separately) as per CPWD specification and direction of the Engineer - in - charge. A. Class - 3 ( working pressure 6.0 kg / cm2)

i) 40 mm OD

ii) 90 mm OD

Providing, fixing and laying fabricated UPVC bend of required degree conforming to IS : 10124 ( part 8 / 9 / 10 / 11 / 12 / 13 ) with solvent cement conforming to IS : 14182 including testing of joints complete as per CPWD specification and direction of the Engineer - in - charge.

i) 90 mm dia

ii) 110 mm dia

Providing, fixing and laying fabricated UPVC end cap conforming to IS : 10124 (Part 4) with solvent cement conforming to IS : 14182 including testing of joints complete as per CPWD specification and direction of the Engineer - in -charge.

i) 90 mm dia

ii) 40 mm dia

Providing, fixing and laying fabricated UPVC equal tee conforming to IS : 10124 ( Part 5 ) with solvent cement conforming to IS : 14182 including testing of joints complete as per CPWD specification and direction of the Engineer - in -charge..

i) 90 x 90 mm dia

ii) 110 x 110 mm dia

Providing and fixing C.I. sluice valves ( with cap ) complete with bolts, nuts, rubber insertions etc. ( the tail pieces if required will be paid separately ) as per CPWD specificationand direction of the Engineer - in - charge. i) 150 mm dia. A. PN - 1.6

ii) 125 mm dia A. PN - 1.6

iii) 100 mm dia A. PN - 1.6

Providing and fixing CIDF Butterfly valve with bolts, nuts, rubber insertions etc. complete as per CPWD specification and direction of the Engineer - in - charge. (The tail pieces, tappers etc if required will be paid separately )

i) 150 mm dia

Providing and fixing G.I union as per CPWD specification & direction of the Engineer –in-charge. i) 15 mm dia.

Providing and fixing G.I socket as per CPWD specification & direction of the Engineer –in-charge. i) 15 mm dia.

Providing and fixing G.I bend/elbow in the pipe line in/c testing of joints complete as per CPWD specification as per direction of the Engineer –in- charge. i) 15 mm dia.

Providing and fixing G.I nipple of medium class as per CPWD specification and direction of the Engineer –in- charge. i) 15 mm dia 150 mm long.

Providing & fixing G.I pipes medium class as per IS:1239 with latest amendment complete with G.I fittings including trenching & refilling, cutting and making good the walls etc. complete as per specification and direction of the Engineer-in-charge. A. External work. i) 15 mm dia. nominal bore

Providing & fixing of Brass ferrule with C.I cover conforming to IS: 2692 including boring & tapping the main as per CPWD specification and direction of the Engineer-in-charge. i) 10 mm dia. nominal bore.

Providing and fitting fixing PVC / plastic bib cock conforming to IS : 9763 in hydrant points at different location as per specification & direction of the Engineer-in-charge.

i) 15 mm dia PVC /plastic bib cock

Charges for repairing of leakage in UPVC / HDPE pipe line with PVC coupler & solvent cement etc. including necessary earth excavation, backfilling of soil as required after laying of pipeline, in layers not exceeding 200 mm in depth including consolidating each deposited layer by ramming, watering etc. complete as per specification & direction of the Engineer-incharge.

i) 90 mm OD

ii) 110 mm OD

iii) 140 mm OD

Washing & removal of deposited iron sludge & any other foreign materials etc. from inside the existing water distribution pipe line foreign materials from inside the excavation trenches up to required width & depth cutting of PVC pipe line at a length of every 55.00 Mtr. interval jointing of pipe with PVC coupler and solvent cement in/c satisfactory testing of joints refilling trenches with available excavated earth etc. complete as per direction of the Engineer-in-charge [Rate in/c the cost of cement solvent PVC pipe for making PVC couplers, will be issued by the Department at free of cost).

i) 90 mm dia

ii) 110 mm dia

iii) 140 mm dia

Providing flanged joints to double flanged C.I / D.I. pipes and special including testing of joints as per CPWD specification and direction of the Engineer - in - charge.

i) 150 mm dia.

Providing, fixing and laying fabricated UPVC socket / coupler conforming to IS : 10124 ( Part 2 ) with solvent cement conforming to IS : 14182 including testing of joints complete as per CPWD specification and direction of the Engineer - in - charge.

i) 90 mm dia

ii) 110 mm dia

iii) 140 mm dia