Improvement and Extension of existing water supply net work under Laxmipur Gram Panchayat under SD-II, CD, APWD, Diglipur

Amount

Providing and fixing G.I. pipes complete with G.I. fittings including trenching and refilling etc. External work

25 mm dia nominal bore

40 mm dia nominal bore

50 mm dia nominal bore

Making connection of G.I. distribution branch with G.I. main of following sizes by providing and fixing tee, including cutting and threading the pipe etc. complete :

50 to 80 mm nominal bore

Providing and fixing gun metal gate valve with C.I. wheel of approved quality (screwed end) :

25 mm nominal bore

40 mm nominal bore

50 mm nominal bore

65 mm nominal bore

80 mm nominal bore

Painting G.I. pipes and fittings with two coats of anti-corrosive bitumastic paint of approved quality :

25 mm diameter pipe

40 mm diameter pipe

50 mm diameter pipe

Providing and fixing G.I. Union in G.I. pipe including cutting and threading the pipe and making long screws etc. complete (New work) :

25 mm nominal bore

40 mm nominal bore

50 mm nominal bore

Providing and fixing G.I. Union in existing G.I. pipe line, cutting and threading the pipe and making long screws, including excavation, refilling the earth or cutting of wall and making good the same complete wherever required :

65 mm nominal bore

80 mm nominal bore

Constructing masonry Chamber 60x60x75 cm inside, in hollow block work in cement mortar 1:4 (1 cement : 4 coarse sand) for gate valve complete with C. I. double flap surface box 400x200 x200 mm (inside) with locking arrangement 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 40mm nominal size ) and inside plastering with cement mortar 1:3 (1 cement : 3 coarse sand) 12mm thick, finished with a floating coat of neat cement complete as per standard design:

With hollow block of 200mm thickness

Dhananjay Biswas

INDRAJIT BARMAN