nit41

Construction of Tube Well up to 100 mtr. depth in all type of rocks by DTH system & over burden to accommodate casing pipe of following sizes in all type of soils & over burden including lowering of casing pipes, (if required) excluding cost of casing pipes, as per IS:2800 Part 1: 1991 and IS:2800 Part II: 1979 (both amended upto date) and technical specifications. The work would be completed after obtaining sand free water. The tube well should have a throughout bore as per nominal dia of casing pipe.

Nominal bore 125 mm dia. ( BSR item 2.45.2)

Supply of ERW M.S. black casing pipe ISI marked as per IS: 1239 (part 1: 2004) or midium fo following sizes at site of work:- 125 mm dia NB( Thickness of pipe 4.8 mm & mass of tube 16.40 Kg/m) (BSR Item 2.47.2)

Supply & installation of GI pipe 32 mm medium class “B” with pipe sockets (heavy duty). (2.50)

Supply and installation of ISI marked india mark II hanpump set complete with cylinder & 15 connecting rods. (BSR Item 2.51)

Supply and installation of ISI mark connecting rod as per departmental specifications of 3 meter length. (BSR Item 2.53)

Installation of India Mark II/III E.D. I & II hand pump set complete on existing platform. (BSR Item 2.54)

Construction of 185 cm. dia platform as per approved design and drawing of UNICEF. (BSR Item 2.55)

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