WBPWD/KWSD-II/AE/ NIT-06/2026-2027sl7

Opening out leaky water supply pipe and making the joints water tight. (iii) 65 mm to 100 mm dia.

Dismantling upto 100 mm sluice valve by parts and cutting out worn out bolts and reassembling the same after regrinding valve,rewashering flanges, asbestos diamond packing including studs,bolts, nuts and necessary repairs.

Renewing cast iron inspection door with bolts and nuts complete for fittings of 50 mm dia. to 150 mm dia. H.C.I. pipe.

Supplying, fitting and fixing in position C.I. manhole/ pit cover with rim. (a) Round (iv) 450 mm X 100 mm X 75 kg (approx.)

Cleaning silt of inspection pit.

Removing chokage of yard gully.

Removing chokage of H.C.I. or S.W. pipe with split bamboo. (a) Underground

(b) Over ground

Supplying, fitting and fixing yard gully with approved H.C.I. grating complete. (i) 225 mm X 150 mm with 230 mm gratings

Supplying, fitting & fixing Cast iron soil pipe only conforming to I.S. 3989/2009 and I.S. 1729/2002 with bobbins, nails etc. including making holes in the wall, floor etc. and cutting trenches etc. in any floor through masonry concrete, if necessary, and mending good damages with necessary jointing materials and painting two coats to the exposed surface with approved paint complete. (Measurement will be made along the center line of the total pipe line in fitted condition including specials,payment for specials & Painting will however be paid seperately). (a) With valamoid joints including sealing with sand cement morter (4:1) upto quarter depth. (i) 150 mm dia. (internal)