REPAIRS / MAINT / REPLACEMENT OF WATER SUPPLY DISTRIBUTION NETWORK, CONTROL VALVES AND CONNECTED WORKS AT C and E AREA UNDER GE CHENNAI

Amount

Excavation in trenches in soft/ loose soil n. exc. 1.50m wide and n. exc. 1.50m deep for taking out/ laying cables, CI/ GI/ DI/ HDPE pipe line and getting out complete all as specified and directed.

Excavation in trenches in Hard/ dense soil n. exc. 1.50m wide and n. exc. 1.50m deep for taking out/ laying cables, CI/ GI/ DI/ HDPE pipe line and getting out complete all as specified and directed.

Returning filling in including spreading, levelling, watering & well ramming in layers not exceeding 25cm thick in soft/ loose soil complete all as specified and directed.

Removing excavated soil not exceeding 50m and depositing where directed at a level not exceeding 1.5m above the starting point complete all as specified and directed.

Taking out unserviceable CI/GI/PPR/UPVC/DI/HDPE water main from trenches/walls/ floors including fittings / fixtures like bend, Tee, Union, Elbow etc with socketed ends and lead joints including burning out joints complete all as specified and as directed. Note: Excavation and earthwork will be measured and paid separately under appropriate items.

(a) 80mm bore CI pipe

(b) 100mm bore CI pipe .

(c) 20mm bore GI pipe

(d) 25mm bore GI pipe

(e) 40mm bore GI pipe

(f) 50mm bore GI pipe

(g) 80mm bore GI pipe

(h) 100mm bore GI pipe

(i) 25mm bore PP-R pipe

(j) 40mm bore PP-R pipe

(k) 50mm bore PP-R pipe

(l) 75/80mm bore PP-R pipe

(m) 20mm bore UPVC pipe

(n) 25mm bore UPVC pipe

(o) 40mm bore UPVC pipe

(p) 80 mm DI pipe

(q) 100 mm DI pipe

(r) 75/80mm HDPE pipe

(s) 100/110mm HDPE pipe

Supply, laying and jointing 80mm bore cast iron pipes, centrifugally cast, class LA, conforming to IS-1536 of 2001 in any length laid in trenches or on supports including making alteration in existing/ new pipe line for insertion of new pipe, if necessary complete all as specified and directed.

All as per item No. 6.00 above but 100mm bore CI pipe.

Supply, laying , jointing and testing 20mm bore galvanised steel water tubing medium grade including provision of all pipe fittings such as bends, tees, elbows, reducers, unions, plugs, sockets etc. laid in trenches, fixed to walls or laid in floors etc. complete all as specified and directed.

All as per item No. 8.00 above but 25mm bore tubing

All as per item No. 8.00 above but 40mm bore tubing

All as per item No. 8.00 above but 50mm bore tubing

All as per item No. 8.00 above but 80mm bore tubing

All as per item No. 8.00 above but 100mm bore tubing

M & L for 3- layer PP-R Polypropylene random copolymer concealed pipes size 25 mm SDR 7.4 (PN16) UV stabilized and antimicrobial fusion welded having thermal stability for hot & cold water supply all PP-R plain & brass threaded polypropylene random fittings all pipe fittings such as bends, tees, elbows, reducers, unions, plugs, sockets etc laid in trenches complete all as specified and as directed.

All as per item No. 14.00 above but 40mm PP-R pipe

All as per item No. 14.00 above but 50mm PP-R pipe

All as per item No. 14.00 above but 75/80mm PP-R pipe

Supply, laying, jointing and testing 20 mm bore UPVC pipe (Sch 40 ) with screw, socket joints with all fittings/ fixtures like bends etc. laid in trenches, making alterations in existing/ new pipes as required complete all as specified and directed.

All as per item No. 18.00 above but 25 mm bore UPVC pipe.

All as per item No. 18.00 above but 40 mm bore UPVC pipe.

Supply, laying, jointing and testing 80mm bore DI pipe class K7 with screw, socket joints with all fittings/ fixtures like bends etc. laid in trenches, making alterations in existing/ new pipes as required complete all as specified and directed.

All as per item No. 21.00 above but 100mm bore DI pipe.

Supply, laying, jointing and testing 75/80mm dia HDPE pipe of pressure rating 6Kg with socket joints with all fittings/ fixtures like bends, sockets, unions nipples etc laid in trenches, making alterations in existing/ new pipes as required complete all as specified and as directed.

All as per item No. 23.00 above but 100/110 mm dia HDPE pipe.

M&L for CI specials such as bends, tapers, straight, increasing/ decreasing or double socket/ flanged end collars, connecting pieces etc. for pipes upto 150mm bore as required at site all as specified and directed.

M&L for cement concrete (1:3:6) type C-1 using 20mm graded stone aggregate as in mass concrete in making good to damaged portion of road/ hardstanding complete all as specified and as directed.

M&L detection of leakage in 80mm dia CI/ DI water main by necessary excavation in any type of soil in any situation including bailing out leakage water by suitable means, repairs to pipe line by burning lead joint occurring at site including cutting, threading for addition/ alteration for insertion of fittings including necessary joints complete all as specified and directed. Note: The rate quoted deemed to be inclusive of earthwork including refilling of earth after needful completion of leak arrest test all as directed and as specified.

All as per item No. 27.00 above but for 100mm bore pipes.

All as per item No. 27.00 above but for 150mm bore pipes.

M&L detection of leakage in 20mm dia GI water main by necessary excavation in any type of soil in any situation including bailing out leakage water by suitable means including cutting, threading for addition/ alteration for insertion of fittings complete all as specified and directed. Note: The rate quoted deemed to be inclusive of earthwork including refilling of earth after needful completion of leak arrest test all as directed and as specified.

All as per item No. 30.00 above but for 25 mm bore pipes.

All as per item No. 30.00 above but for 40 /50 mm bore pipes.

All as per item No. 30.00 above but for 80mm bore pipes.

All as per item No. 30.00 above but for 100mm bore pipes.

M&L detection of leakage in 80mm dia HDPE water main by necessary excavation in any type of soil in any situation including bailing out leakage water by suitable means including repair to pipe line by cutting and jointing/ inserting piece of pipe with necessary fittings complete all as specified and directed. Note: The rate quoted deemed to be inclusive of earthwork including refilling of earth after needful completion of leak arrest test all as directed and as specified.

All as per item No. 35.00 above but for 110mm/ 150mm/ 160mm dia pipes.

S&F gun metal, globe or gate valve confirming to IS 778-1984 with iron wheel head, screwed both ends for 20mm bore iron pipe including all fittings/ fixtures like nipple, union etc. fixed in repairs including taking down unserviceable gate valves and connected fittings and fixtures complete all as specified and directed.

S&F gun metal, globe or gate valve confirming to IS 778-1984 with iron wheel head, screwed both ends for 25mm bore iron pipe including all fittings/ fixtures like nipple, union etc. fixed in repairs including taking down unserviceable gate valve and connected fittings and fixtures complete all as specified and directed.

S&F gun metal, globe or gate valve confirming to IS 778-1984 with iron wheel head, screwed both ends for 40mm bore iron pipe including all fittings/ fixtures like nipple, union etc. fixed in repairs including taking down unserviceable gate valve and connected fittings and fixtures complete all as specified and directed.

S&F gun metal, globe or gate valve confirming to IS 778-1984 with iron wheel head, screwed both ends for 50mm bore iron pipe including all fittings/ fixtures like nipple, union etc. fixed in repairs including taking down unserviceable gate valve and connected fittings and fixtures complete all as specified and directed.

S&F gun metal, globe or gate valve confirming to IS 778-1984 with iron wheel head, screwed both ends for 80mm bore iron pipe including all fittings/ fixtures like nipple, union etc. fixed in repairs including taking down unserviceable gate valve and connected fittings and fixtures complete all as specified and directed.

S&F gun metal, globe or gate valve confirming to IS 778-1984 with iron wheel head, screwed both ends for 100mm bore iron pipe including all fittings/ fixtures like nipple, union etc. fixed in repairs including taking down unserviceable gate valve and connected fittings and fixtures complete all as specified and directed.

Supply & fixing cast iron sluice valve PN 1.6 conforming to IS 14846-2000 with stainless steel spindle, iron hand wheel & cap suitable for 80mm bore pipe with flanged ends, any pattern including nuts, bolts, rubber gasket, wheel etc. including taking down unserviceable sluice valve and connected fittings and fixtures complete all as specified and directed.

Supply & fixing cast iron sluice valve PN 1.6 conforming to IS 14846-2000 with stainless steel spindle, iron hand wheel & cap suitable for 100mm bore pipe with flanged ends, any pattern including nuts, bolts, rubber gasket, wheel etc. including taking down unserviceable sluice valve and connected fittings and fixtures complete all as specified and directed.

Supply & fixing cast iron sluice valve PN 1.6 conforming to IS 14846-2000 with stainless steel spindle, iron hand wheel & cap suitable for 150mm bore pipe with flanged ends, any pattern including nuts, bolts, rubber gasket, wheel etc. including taking down unserviceable sluice valve and connected fittings and fixtures complete all as specified and directed.

M&L dismantling sluice valve from 80mm bore pipe line, replacement of brass spindle and check nuts, scratching out all internal surface deposits, servicing and refixing in position including testing complete all as specified and directed.

M&L dismantling sluice valve from 100mm bore pipe line, replacement of brass spindle and check nuts, scratching out all internal surface deposits, servicing and refixing in position including testing complete all as specified and directed.

M&L dismantling sluice valve from 150mm bore pipe line, replacement of brass spindle and check nuts, scratching out all internal surface deposits, servicing and refixing in position including testing complete all as specified and directed.

S&F Ball valve (Sch 80) for 20 mm bore UPVC pipe including all fittings/ fixtures like nipple, union etc. fixed in repairs including taking down unserviceable ball valve and connected fittings and fixtures complete all as specified and directed.

All as per item No. 49.00 above but 25 mm bore UPVC Ball valve including taking down unserviceable ball valve and connected fittings and fixtures complete all as specified and directed.

All as per item No. 49.00 above but 40 mm bore UPVC Ball valve including taking down unserviceable ball valve and connected fittings and fixtures complete all as specified and directed.

Testing of water samples (Raw and Treated ) for physical examination and chemical examination full test from TWADA/ Govt. approved laboratory complete as directed.

M&L construction of brick masonry valve pit chamber of inner dimension 900mm x 900mm x 1050mm suitable for valves upto 200mm size including 150mm thick PCC (1:4:8) type D-2 for foundation, brick work in cement mortar (1:6), 15mm thick internal rendering in cement mortar (1:4) mixed with water proofing compound, 50mm thick coping in PCC (1:2:4) type B-1, including necessary excavation and earth work including provision of MS sheet cover of thickness not less than 2.80mm on 50mm x 50mm x 6.0mm angle iron frame with locking arrangement, including painting MS surfaces with two coats of synthetic enamel paint over one coat of red oxide primer including demolition of old damaged valve pit complete all as specified and directed.

M&L for fabrication and replacement of cover for valve pit of inner dimensions 750mm x 750mm fabricated out of MS sheet of thickness 2.00mm with frame fabricated out of 50mm x 50mm x 6.0mm thick angle iron with locking arrangement including painting MS surfaces with two coats of synthetic enamel paint over one coat of red oxide primer including repair to brick work as required complete all as specified and directed.

All as per item No. 54.00 above but for valve pit of inner dimensions 200mm x 200mm.

All as per item No. 54.00 above but for valve pit of inner dimensions 200mm x 300mm.

All as per item No. 54.00 above but for valve pit of inner dimensions 1000mm x 1000mm.

RK ENTERPRISES (BID ID -3114305)

G.L.THIRUMALAI NAIDU AND COMPANY (BID ID -3127306)

A V ENGINEERING (BID ID -3115541)