Connection of water supply

Providing and fixing G.I. pipes complete with G.I. fittings including trenching and refilling etc. External work. 80 mm dia. nominal bore. External work.

Painting G.I. pipes and fittings with two coats of anti-corrosive bitumastic paint of approved quality : 80 mm diameter pipe.

Providing and filling sand of grading zone IV or fine grade alround the G.I. pipes in external work. 80 mm diameter pipe.

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 G.I. Union in G.I. pipe including cutting and threading the pipe and making long screws etc. complete (New work). 80 mm nominal bore

Providing and fixing gun metal gate valve with C.I. wheel of approved quality (screwed end): 80 mm nominal bore

Constructing masonry Chamber 30x30x50 cm, inside with 75 class designation brick work in cement mortar 1:5 (1 cement :5 fine sand) for stop cock, with C. I. surface box 100x100 x75 mm (inside) with hinged cover fixed in cement concrete slab 1:2:4 mix (1 cement :2 coarse sand : 4 graded stone aggregate 20 mm nominal size ) 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 Second Class bricks

GOURANGA SAHA

PALASH CHANDRA SAHA