Improvement of water distribution network at Kokrajhar Block (ID-1027, Activity Code-126153690) under the award of 15th FC Tied Grant (1st Installment) for the year 2024-25 during 2025-26.

Laying of HDPE Pipe (Nayekgaon PT-II PWSS) Providing, Laying, Jointing & field testing of HDPE pipes (High Density Polyethylene Pipes-PE 100) confirming to IS 4984/2016 (with up to date amendment) with necessary jointing material like mechanical connector of jointing pipes by heating the ends of pipes with the help of Teflon coated electric mirror/ heater to the required temperature and then pressing the ends together against each other, to form a monolithic & leak proof joint by thermosetting process. It may be required to be done with Jack/Hydraulic Jacks/ Butt fusion machine. (50 mm & above fusion jointed & below 50mm mechanical jointed). The HDPE fitting should be ISI marked conforming to relevant BIS code. 110 mm HDPE pipe

90 mm HDPE pipe

75 mm HDPE pipe

63 mm HDPE pipe

Construction, testing and commissioning of Valve Chamber for Sluice Valve Constructing masonry Chamber 90x90x100 cm inside, in brick work in cement mortar 1:4 (1 cement: 4 coarse sand) for sluice valve, with C.I. surface box 100 mm top diameter, 160 mm bottom diameter and 180 mm deep (inside) with chained lid and RCC top slab 1:2:4 mix (1 cement: 2 coarse sand: 4 graded stone aggregate 20 mm nominal size), i/c necessary excavation, foundation concrete 1:5:10 (1 cement: 5 fine sand 10 graded stone aggregate 40 mm nominal size) and inside plastering with cement mortar 1:3 (1 cement: 3 coarse sand) 12 mm thick, finished with a floating coat of neat cement complete as per standard design: With common burnt clay F.P.S.(non modular) bricks of class designation 7.5 A) For 100mm dia Sluice valve against 110 mm dia Distribution pipe line

Constructing masonry Chamber 60x60x75 cm inside, in brick work in cement mortar 1:4 (1 cement: 4 coarse sand) for sluice valve, with C.I. surface box 100mm top diameter, 160 mm bottom diameter and 180 mm deep (inside) with chained lid and RCC top slab 1:2:4 mix (1 cement: 2 coarse sand: 4 graded stone aggregate 20mm nominal size), i/c necessary excavation, foundation concrete 1:5:10 (1 cement: 5 fine sand : 10 graded stone aggregate 40 mm nominal size) and inside plastering with cement mortar 1:3 (1 cement: 3 coarse sand) 12 mm thick, finished with a floating coat of neat cement complete as per standard design: 18.33.1 With common burnt clay F.P.S.(non modular) bricks of class designation 7.5 A) For 80mm dia Sluice valve against 90mm/75mm dia Distribution pipe line

Replacement of 3 layer PPR pipe Providing and fixing 3 layer PP-R (Poly propylene Random copolymer) pipes confirming to IS:15801 UV stabilized & anti microbial fusion welded, having thermal stability for hot & cold water supply, including all PP R plain & brass threaded polypropylene random fittings, including trenching, refilling & testing of joints complete as per direction of Engineer-in-Charge. 18.6.1 PN-16 Pipe, 20mm OD (SDR-7.4)

Laying of HDPE Pipe (Haijraiguri PWSS) Providing, Laying, Jointing & field testing of HDPE pipes (High Density Polyethylene Pipes-PE 100) confirming to IS 4984/2016 (with up to date amendment) with necessary jointing material like mechanical connector of jointing pipes by heating the ends of pipes with the help of Teflon coated electric mirror/ heater to the required temperature and then pressing the ends together against each other, to form a monolithic & leak proof joint by thermosetting process. It may be required to be done with Jack/Hydraulic Jacks/ Butt fusion machine. (50 mm & above fusion jointed & below 50mm mechanical jointed). The HDPE fitting should be ISI marked conforming to relevant BIS code. 90 mm HDPE pipe

75 mm HDPE pipe

63 mm HDPE pipe