Maintenance of DWS Scheme located at Karaiyamura GP under Tepania RD Block under DWS Sub-Division No-II during the year 2026-27/Extention Pipeline, Removal of iron from pipeline, pipeline leakage etc. (Gr-II). (Deposit Work)

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. A) 90 mm dia OD

B) 110 mm dia OD

C) 140 mm dia OD

Excavation trenches of required width for pipes , cables, etc. in/c. excavation for sockets , dressing of sides where required , ramming of bottoms , depth upto 1500 mm in/c. getting out the excavated soil and backfilling of soil as required after laying of pipeline , in layer not exceeding 200 mm in depth in/c. cosolidating of surplus excavated soil with all required leads as per chapter -2 of CPWD specification and direction of the Er. -in -Charge. A) For UPVC pipe in new work. a. In all kinds of soil. 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) 90 mm dia OD

ii) 40 mm OD

Providing and laying of flexible PVC pipe ( conforming to IS:763) complete as per specification and direction of the Engineer in charge. ( cost of Earth work and fittings will be paid separately ) i) 15mm dia

Labour for removal of deposited iron foreign materials from existing PVC pipeline by chain led pully system attached with required dia of cutter etc. in/c necessary earth excavation dismantling cutting relaying of jointing of pipes by making pvc coupler and solvent cement and refilling of earth etc complete as per direction of engg in charge(pin point for cutting PVC pipeline will be as per direction of engg-in-charge and as per actual site condition and necessary pipe for making coupler and solvent cement, will be issued by dept. free of cost).

Providing and fixing C.I sluce valve (with cap) complete with bolts, nuts, rubber insertions etc. (the tail pieces if required will be paid separately) as per chapter 20 of CPWD specification and direction of the Engineer-in-charge. A) 80 mm dia, PN-1.6

C) 150 mm dia, PN-1.6