REPAIR/REPLACEMENT OF CORRODED CI/GI/PPR WATER PIPE LINES, EXTERNAL WATER PIPELINE NETWORK AND ALLIED WORKS AT TAMULPUR, DARRANGA AND HATTIGOR MILITARY STATION UNDER GE RANGIA

Amount

Excavation in trenches n.exc 1.5m wide and n.exc 1.5 m in depth for foundation etc or for shafts, wells, cesspits, manholes, pier holes etc n.exc 10 sqm on plan and n.exc 1.5m in depth and getting out in soft/loose soil complete all as per specified and as directed by Engineer-in-charge.

Returning, filling in, including spreading, leveling, watering and well ramming in layers n exc 25cm complete all as per specified and as directed by Engineer-in-charge.

Removing excavated material not exc. 50 m & depositing where directed at a level not exc. 1.5 m above starting point complete all as per specified and as directed by Engineer-in-charge.

Taking out old existing GI/CI/PPR water mains 100 mm bore (including all fittings) with spigot and socket ends and fittings for re-use in the work and removing unserviceable pipes and fittings from site complete all as per specified and as directed by Engineer-in-charge.

All as per serial item No. 4 above but for size of 80 mm bore.

All as per serial item No. 4 above but for size of 50 mm bore.

All as per serial item No. 4 above but for size of 40 mm bore.

All as per serial item No. 4 above but for size of 32 mm bore.

All as per serial item No. 4 above but for size of 25 mm bore.

All as per serial item No. 4 above but for size of 20 mm bore.

Laying only old serviceable GI/CI/PPR water pipe of any grade 100 mm bore in trenches including cleaning of pipe as required and testing complete all as per specified and as directed by Engineer-in-charge.

All as per serial item No. 11 above but for size of 80 mm bore.

All as per serial item No. 11 above but for size of 50 mm bore.

All as per serial item No. 11 above but for size of 40 mm bore.

All as per serial item No. 11 above but for size of 32 mm bore.

All as per serial item No. 11 above but for size of 25 mm bore.

All as per serial item No. 11 above but for size of 20 mm bore.

Supply and laying medium grade galvanised iron water pipe 100 mm bore with all fittings in trenches including testing complete all as per specified and as directed by Engineer-in-charge.

All as per serial item No. 18 above but for GI pipe of size 80 mm bore.

All as per serial item No. 18 above but for GI pipe of size 50 mm bore.

All as per serial item No. 18 above but for GI pipe of size 40 mm bore.

All as per serial item No. 18 above but for GI pipe of size 32 mm bore.

All as per serial item No. 18 above but for GI pipe of size 25 mm bore.

All as per serial item No. 18 above but for GI pipe of size 20 mm bore.

Supply and laying triple layer PP-R Pipes 110 mm dia ( PN 16/ SDR 7.4) with all fittings laid in trenches including testing complete all as per specified and as directed by Engineer-in-charge. Note - Earthwork involved if any shall be measured and paid separately.

All as per serial item No. 25 above but for PPR pipe of size 90 mm dia. (PN 16/ SDR 7.4).

All as per serial item No. 25 above but for PPR pipe of size 63 mm dia. (PN 16/ SDR 7.4).

All as per serial item No. 25 above but for PPR pipe of size 50 mm dia. (PN 16/ SDR 7.4).

All as per serial item No. 25 above but for PPR pipe of size 40 mm dia. (PN 16/ SDR 7.4).

All as per serial item No. 25 above but for PPR pipe of size 32 mm dia. (PN 16/ SDR 7.4).

All as per serial item No. 25 above but for PPR pipe of size 25 mm dia. (PN 16/ SDR 7.4).

M&L for construction of valve pit of internal size 120 cm X 120 cm X 90 cm with one brick thick brick masonry wall in cement mortar (1:4), PCC foundation 15cm thick (1:4:8) type D-2 with 15cm offsets, PCC copping 5 cm thick (1:2:4) type B-1, plastering 15mm thick in cement mortar (1:4), 40X40X6mm angle iron frame and 3mm thick MS sheet cover with locking arrangement including painting to steel surfaces with two coats of synthetic enamel paint over a coat of red oxide primer and necessary excavation and earth work including dismantling of existing one complete all as per specified and as directed by Engineer-in-charge.

All as per serial item No. 32 above but pit of size 90 cm X 90 cm X 60 cm.

S&F gun metal globe or gate valve, with iron wheel head screwed both ends for pipe of 50 mm bore including dismantling unserviceable one complete all as per specified and as directed by Engineer-in-charge.

All as per serial item No. 34 above but valve of size 40 mm bore.

All as per serial item No. 34 above but valve of size 25 mm bore.

S&F cast iron sluice valve for 150 bore pipe, heavy duty, (PN-1.6), ISI mark with stainless steel/brass spindle and cast iron wheel head confirming to IS-14846 flanged both ends and including all jointing materials required viz rubber gasket 3mm thick, bots, nuts and washers including dismantling old unserviceable one complete all as per specified and as directed by Engineer-in-charge.

All as per serial item No. 37 above but valve of size 100 mm bore.

All as per serial item No. 37 above but valve of size 80 mm bore.

S&F cast iron fittings for flanged pipes upto 150 mm bore such as Bends. Tapers, Tee pieces (single & double branch) any type and angle/radius and straight connecting pieces but all ends flanged including necessary gasket, nut bolts etc including taking down old unserviceable fittings complete all as per specified and as directed by Engineer-in-charge.

Supply and laying 100 mm bore cast iron pipes with spigot and socket ends centrifugally cast. class LA, in any length, laid in trenches or fixed vertically to OH tank, including testing complete all as per specified and as directed by Engineer-in-charge.

S&F CI non return valve 100 mm dia both end flanged, horizontal type confirming to IS 5312 complete with all acessories such as jointing materials 3 mm thick rubber gasket, bolts, nuts, washers, etc, including dismantling old unserviceable one complete all as per specified and as directed by Engineer-in-charge.

Supply and fixing PP-R Gate valves (brass insert) suitable for PP-R pipe of outer dia 25mm including taking down old unserviceable one complete all as per specified and as directed by Engineer-in-charge.

All as per serial item no. 43 above but valve suitable for pipe of dia. 32 mm.

All as per serial item no. 43 above but valve suitable for pipe of dia. 40 mm.

All as per serial item no. 43 above but valve suitable for pipe of dia. 50 mm.

All as per serial item no. 43 above but valve suitable for pipe of dia. 63 mm.

Dismantling and lowering down of old rusted top plate/roof sheet made out of 3.15mm thick mild sheet from pressed steel water tank on 40 feet staging carefully without making any damage to other members after necessary unscrewing bolts, nuts, etc. complete all as specified and as directed by Engineer-in-charge.

Supply, errection, hoisting and fixing of mild steel top plate/roof sheet 3.15mm thick made to required shape and drilling necessary holes for fixing of bolts & nuts and fixed on existing pressed steel water tank on 40 feet staging including necessary wire mesh jaly as required complete all as specified and as directed by Engineer-in-charge.

Refixing of serviceable top plate obtained from serial item No. 48 after properly cleaning with the help of wire brush complete all as specified and as directed by Engineer-in-charge.

Dismantling and lowering down 5 mm thick pressed steel side plates of size 1.22m x 1.22m from pressed steel water tank on 40 feet staging, carefully without damage to other members after necessary unscrewing of bolts, nuts, washers etc including separating serviceable side plates and kept in safe custody for reuse in the same work complete all as specified and as directed by Engineer-in-charge.

Dismantling and lowering down 6 mm thick pressed steel side plates of size 1.22m x 1.22m from pressed steel water tank on 40 feet staging, carefully without damage to other members after necessary unscrewing of bolts, nuts, washers etc including separating serviceable side plates and kept in safe custody for reuse in the same work complete all as specified and as directed by Engineer-in-charge.

Supply, errection, hoisting and fixing of new pressed steel side plate of 1.22mx1.22m and 5 mm thick, made to required shape and drilling necessary holes for fixing of bolts and nuts in existing pressed steel water tank on 40 feet staging complete all as specified and as directed by Engineer-in-charge.

Supply, errection, hoisting and fixing of new pressed steel side plate of 1.22mx1.22m and 6 mm thick, made to required shape and drilling necessary holes for fixing of bolts and nuts in existing pressed steel water tank on 40 feet staging complete all as specified and as directed by Engineer-in-charge.

Fixing only old serviceable pressed steel side plate of size 1.22mx1.22m obtained from serial item No. 51 here-in-before of 5 mm thickness with nuts, bolts and washers in existing pressed steel water tank after proper cleaning with the help of wire brush on 40 feet staging complete all as specified and as directed by Engineer-in-charge.

Fixing only old serviceable pressed steel side plate of size 1.22mx1.22m obtained from serial item No. 52 here-in-before of 6 mm thickness with nuts, bolts and washers in existing pressed steel water tank after proper cleaning with the help of wire brush on 40 feet staging complete all as specified and as directed by Engineer-in-charge.

Dismantling and lowering down mild steel tie bar made out of angle iron size 65mm x 65mm x 6mm and 2.00 metre long each from pressed steel water tank on 40 feet staging without any damage to other members with necessary unscrewing of bolts, nuts and washers complete all as specified and as directed by Engineer-in-charge.

Supply, errection, hoisting and fixing mild steel tie bars made out of angle iron of size 65mmx65mmx6mm and 3.00 metre long Each and drilling necessary holes for fixing of bolts & nuts in existing pressed steel water tank on 40 feet staging complete all as specified and as directed by Engineer-in-charge.

Fixing only serviceable tie bars obtained from serial item No 57 above duly cleaned complete all as specified and as directed by Engineer-in-charge.

Supply and fixing mild steel machine made nut and bolt 16-20 mm dia and not exceeding 5 cm long nuts and bolts with washers for fixing of steel plates, tie bars, etc. complete all as specified and as directed by Engineer-in-charge.

Supply and fixing mild steel machine made nut and bolt 11-15 mm dia and not exceeding 5 cm long nuts and bolts with washers for fixing of steel plates, tie bars, etc. complete all as specified and as directed by Engineer-in-charge.

Fixing only serviceable nuts, bolts and washers obtained from dismantled items for fixing of pressed steel plates, tie bar, roof sheets, etc. complete all as specified and as directed by Engineer-in-charge.

M&L for fixing leak proof materials comprising of lead wire, glass wool and black putty in existing pressed steel tanks to ensure water tightness after taking out old existing jointing materials by burning with blow lamps and cleaning and jointing surface complete all as specified and as directed by Engineer-in-charge.

M&L for preparation of painted old steel surfaces (inside surfaces of water tank) by removing all foreign particals from steel surfaces and cleaning throughly the surfaces and complete drying the surfaces and applying one coat of black bituminous paint suitable for drinking purpose in pressed steel water tank on 40 feet staging complete all as specified and as directed by Engineer-in-charge.

M&L for preparation of new steel surfaces (inside surfaces of water tank) by removing all foreign particals from steel surfaces and cleaning throughly the surfaces and complete drying the surfaces and applying two coats of black bituminous paint over a coat of primer suitable for drinking purpose in pressed steel water tank on 40 feet staging complete all as specified and as directed by Engineer-in-charge.

M&L for preparation of old painted steel surfaces of water tank (outside surfaces or replaced pressed steel sheets and tie bars and angle irons) and applying one coat of synthetic enamel paint complete all as specified and as directed by Engineer-in-charge.

M&L for preparation of new steel surfaces of water tank (out side surfaces of replaced pressed steel sheets and tie bars and angle irons) and priming with red oxide primer and applying two coats of synthetic enamel paint of existing colour complete all as specified and as directed by Engineer-in-charge. Note:- The contract sum shall be calculated by deducting the amount shown in Credit Schedule attached to this tender, from total amount of Schedule 'A'/BOQ.

MUKUL CHOUDHURY

M/s. G. K. Traders