tender for repair and maintenance of water supply network at nhpc complex pasighat; 1 providing and fixing gi pipes complete with gi fittings and clamps including cutting and making good the walls (internal work). 15 mm dia 2 providing and fixing gi pipes complete with gi fittings and clamps including cutting and making good the walls (internal work). 20 mm dia 3 providing and fixing gi pipes complete with gi fittings including trenching and refilling etc (external work). 15 mm dia 4 providing and fixing gi pipes complete with gi fittings including trenching and refilling etc (external work). 20 mm dia 5 providing and fixing gi pipes complete with gi fittings including trenching and refilling etc (external work). 25 mm dia 6 providing and fixing gi pipes complete with gi fittings including trenching and refilling etc (external work). 32 mm dia 7 providing and fixing gi pipes complete with gi fittings including trenching and refilling etc (external work). 50 mm dia 8 providing and fixing gi pipes complete with gi fittings including trenching and refilling etc (external work). 80 mm dia 9 providing and fixing brass full way valve with wheel of approved quality 32 mm nominal bore 10 providing and fixing c.p. brass long body bib cock of approved quality confirming to is standards and weighing not less than 690 gms. 11 providing and fixing c.p. brass stop cock (concealed) of standard design and of approved make confirming to is:8931. a) 15 mm nominal bor 12 providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering – all work up to plinth level : (a) 1:1 1/2:3 (1 cement: 1 1/2 coarse sand derived from natural sources: 3 graded stone aggregate 20 mm nominal size derived from natural sources) 13 providing and fixing white vitreous china pedestal type (european type wc pan) water closet with closet with seat and lid with cp brass hinges and rubbers buffers, 12.5 litres white vitreous china low-level flushing cistern with fittings and brackets 40 mm white porcelain in enamel led flush band, 20 mm over flow pipe with specials and mosquito proof coupling of approved municipal design complete including cutting and making good the walls and floors where required. a) wc pan with white plastic seat and lid. 14 providing and fixing white vitreous china wash basin with rs or ci brackets painted white 15 mm cp brass pillar taps and cp brass chain with rubber plug 32 mm cp brass waste of standard pattern, 32 mm dia cp brass trap and mi unions complete, including cutting and making good the walls where required. a) flat back wash basin size 550x400mm with a pair of 15mm cp brass pillar taps of heavy quality. 15 providing and fixing brass stop cock of approved quality. 20 mm nominal bore. 16 providing and fixing pvc connection pipe with brass union. 30 cm lengh, 15 mm nominal bore. 17 providing and fixing c.p. brass angle valve for basin mixer and geyser points of approved quality confirming to is:8931 a) 15 mm nominal bore 18 providing and fixing brass full way valve with wheel of approved quality 80 mm nominal bore 19 earth work in excavation in foundation and trenches in soils containing 50% or more of shingle or small size boulders upto 30 cm size, lift upto 1.50 m and stacking the excavatedsoil not more than 3 m clear from the edge of the excavation and returning the stacked soil in 15 cm layers when required, into plinth, sides of foundation etc consolidating each deposited layer by ramming and watering and then disposing of all surplus excavated soil as directed within a lead of 50m. 20 providing and fixing brass full way valve with wheel of approved quality 50 mm nominal bore