Improvement of water distribution network at Barama Block ID-1240 AC-127390559 under 15th FC Tied Grant for the year 2024-25 during 2025-26.

Supplying, laying , fitting & fixing HDPE pipes ( High Density poly ethylene pipes pE 100 ) conforming to IS 4984/2016 (with up to date amendament) with necessary jointing material like mechanical connector of jointing pipes by heating the ends of pipes with help of teflon coated electric mirror / heater to the required temperature and then pressing the ends together against each other to form a monolitic and leak proof joint by thermosetting process. it may be required to be done with jack/ hydraulc jacks/butt fusion machine . (50mm & above fusion jointed & below 50mm mechanical jointed). the HDPE fitting should be ISI marked conforming to relevant BIS code. i) 75mm dia.

ii) 90mm dia.

iii) 110mm dia.

iv) 125mm dia.

Constructing of Brick masonry Sluice Valve Chamber 900mm(L) x 900mm(B) x 1250mm(H) inside, in 230mm brick work in cement mortar 1:5 (1 cement : 5 coarse sand) and precast R.C.C cover slab in prop. 1:2:4 mix (1 cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size ) reinforced with 10mm M.S. bar @ 150mm centre both ways tying with 20 gauge black annealed wire including necessary earthwork (excavation and return filling), 75mm PCC in prop. 1:4:8 (1 cement:4 coarse sand : 8 coarse agg.) over brick flat soling and 15 mm thick inside plastering and outside plastering (upto 150mm from top) with cement mortar 1:5 (1 cement : 5 coarse sand) , complete as per standard design, including Supplying, carrying, placing in position, fitting and fixing 100mm/ 125mm/ 150mm diameter CID/F sluice valve all complete as directed. Approved good for construction drawing will be issued by the deptt. C) For 150mm dia Sluice valve against 160mm dia Distribution pipe line - 1 no. 150mm dia CID/F sluice valve with cap/ wheel as per IS 14846-2000 PN 1.0 with ISI marking, 2 nos. 150mm dia GI Nipple (225mm long), 4 Nos. 150mm dia GI Threaded Flange, 2 Nos. 160mm dia UPVC Flange, 30 Nos. Bolts & nuts and 6 nos. 3mm thick rubber insertion sheet for 150mm dia pipe. i) 150mm dia pipe.

Construction of Functional Household Tap Connection including earthwork in excavation for pipe line (both connection in distribution line and service connection) and refilling, dressing etc., providing PVC Saddle Piece of average size 110 mm x 15 mm (i.e. ranging from 63mm to 140mm) and make Supreme or equivalent, making holes in the distribution pipe, providing 15 mm dia bronze ferrule cock (PN-16) conforming to IS:2692 (1989) as ammended and make Zoloto or equivalent, connecting it to the saddle piece, providing and fixing 3 layer (Outer green / GREY coloured UV Stabilised, middle black coloured UV Stabilised and inermost layer white coloured with antimicrobial property) Fusion welded PP- R ( Poly propylene-random copolymer) Pipes, SDR 7.4 having thermal stability for hot and cold water supply conforming IS 15801-2008 of length 10m from saddle piece to the tap point ( pipes of make SFMC/ FUSION/Wetflow, Kisan brand or other brand of equivalent quality and PN-16 Pipe,20 mm OD,SDR-7.4) including all plain PP-R fittings and brass threaded PP-R fitting and clamping, cutting and making good to the damages, including all taxes and duties as applicable and including the cost of all required labour and materials as directed and specified. The item also includes construction and installation of R.C.C Hydrant Pillar of size 100mm x 100 mm , height 1200 mm with 6 mm dia bar embeded to RCC Post in proportion 1:1.5:3 with 4 nos 10 mm dia main and 6 mm dia stirrup @ 150 C/c and fixing 15 mm dia PPR pipe to the hydrant, with 6 mm rings embedded in concrete for anchoring inclusive of cost of transportation to site and also supplying fitting and fixing PVC Bib cock all complete as directed and specified. Approved good for construction drawing will be issued by the deptt. For Kaljhar, Digheli & Sarukuchijhar PWSS.