REPAIR MAINTENANCE OF EXTERNAL WATER SUPPLY PIPE LINES VALVES VALVE CHAMBERS AND ALLIED WORKS AT ZONE A UNDER GE M ARAKKONAM

Amount

Excavation in trenches not exceeding 1.5mtr wide & not exceeding 1.5 mtr deep getting out in soft /loose soil for taking up/laying CI/GI pipe all as specified and directed by Engr-in-charge.

Returning , filling in trenches (Soft/Loose soil) in layers not exceeding 25 cm thick after laying of pipe including spreading, levelling & well ramming including watering as required all as specified and directed by Engr-in-charge.

Removing surplus excavated soil to a distance not exceeding 50 mtr and depositing where directed at a level not exceeding 1.5 mtr above from the starting point all as specified and directed by Engr-in-charge.

M&L for rectifying leakage of GI pipe line including excavation in mud (not exc 0.7m x0.7mx0.7m) and making arrangement for dewatering by using electric/diesel pump/manual additional labour, taking out existing joint and making joint including providing all GI fittings i.e. socket, tee, elbow , nipples upto 6'' length,GI unions,Reducer (Except GI pipes) complete all as directed for following size of pipe lines:-

a) 80 mm bore.

b) 32 to 50 mm bore.

c) 15 to 25 mm bore.

Taking up or down steel tubing of following sizes from roof/ ceiling /wall /trenches complete all as specified and as directed. Note: Excavation and earth work shall be measured and paid separately under relevant items.

a) 15 mm bore of pipe

b) 20mm bore of pipe

c) 25 mm bore of pipe

d) 50 mm bore of pipe

e) 80 mm dia bore of pipe

f) 100 mm dia bore of pipe

h) 150 mm dia bore of pipe

Supply and lay tubing, medium grade galvanised with all fittings specials such as bends, elbows, tees, short pieces connection, back nuts, diminishing pieces, caps, plugs and unions etc., laid in trenches of following sizes complete all as specified and as directed. Note: Excavation and earth work will be measured and paid seperately under relevant items of schedule.

a) 15 mm bore of pipe

b) 20mm bore of pipe

c) 25 mm bore of pipe

e) 50 mm bore of pipe

f) 80 mm dia bore of pipe

g) 100 mm dia bore of pipe

h) 150 mm dia bore of pipe

Supply and lay tubing, medium grade galvanised with all fittings such as bends, elbows, tees, short pieces connection, back nuts, diminishing pieces, caps, plugs and unions etc., laid in walls, ceiling and laid in floor of following sizes complete all as specified and as directed. Note: Quoted Rate includes supply and fixing suitable MS clamps with painting and wooden plug along with screws in specified intervals.

a) 15 mm bore of pipe

b) 20mm bore of pipe

c) 25 mm bore of pipe

d) 50 mm bore of pipe

Cutting the exisiting road for 0.3m width, 0.6m depth for laying of any type of pipes incl excavation in any type of soil, returning filling, removing and including material and labour PCC 1:4:8 type D2 (40mm graded aggregate) of 15cm thick for making good the disturbed road portion complete all as specified and directed. Note: DI pipe with all fittings shall be measured and paid under the respective items

Material and labour for PCC 1:2:4 type B-1 (Using 20mm graded stone aggregate) as in filling and making good distrubed surface complete all as specified and as directed.

Taking down existing unserviceable sluice valve from the existing pipe line and supply and fix in repairs sluice valve CI body ISI marked class PN 1.6 heavy duty flanged ends cast iron wheel with SS spindle (ISI marked) conforming to IS:14786-2000, short body including nuts, bolts, washers and gasket of following sizes complete all as specified and as directed. Note: Quoted rate deemed to include making good the damaged valve chamber.

a) 80 mm dia

b) 100 mm dia

c) 150 mm dia

d) 200mm dia

e) 300mm dia

Repair/ preventive maint or smooth operation function of defective sluice valves of size 80 mm to 300 mm from existing section/delivery/distribution pipe line, opening up/unscrewing of nuts & bolts and removing of unserviceable brass spindle check nuts and replacement of brass spindel wedge nuts as per existing size and shape including provision of nuts bolts washers gaskets packing/gland packing and repairs of leakage complete as required at site, reassemling and fixing sluice valve to its original position testing complete all as directed by Engr-in-Charge:-. Note: Spares such as brass spindel, spindel threading wedge nut shall be measured and paid separetaly under relevant items

a) 80mm dia

b) 100mm dia

c) 150mm dia

d) 200mm dia

e) 300mm dia

Supply only spindel made with brass gun metal material of same size including necessary machining for following sizes sluice valves:-

a) 80mm dia

b) 100mm dia

c) 150mm dia

d) 200mm dia

e) 300mm dia

Supply only wedge nut made with brass gun metal material of same size for following sizes sluice valves:-

a) 80mm dia

b) 100mm dia

c) 150mm dia

d) 200mm dia

e) 300mm dia

Taking down existing unserviceable Non return valve from the existing pipe line and supply and fix for new Non return valve CI body ISI marked class PN 1.6 heavy duty flanged ends conforming to IS-14786-2000, short body with bypass arrangement including nuts, bolts, washers and gasket including necessary machining work if required complete all as specified and as directed. Note: Quoted rate deemed to include making good the damaged valve chamber.

a) 50mm dia

b) 80mm dia

c) 100mm dia

d) 150mm dia

Taking down the existing unserviceable gate valve of following sizes and supply and fix new gun metal globe valve with iron wheel, screwed both ends for iron pipes along with barb nipple fitting etc., complete all as specified and as directed.

a) 15mm bore

b) 20mm bore

c) 25mm bore

d) 50 mm bore

e) 80mm bore

Supply and lay 3-layer PP-R Polypropylene random copolymer) pipes SDR 7.4 & SDR 11 UV stablised and antimicrobial welded having thermal stability for hot & cold water supply including all PP-R plain & brass threaded polypropylen random fittings fixed complete .with all fittings specials such as bend, elbows,tees, short pieces connection, back nuts, diminishig pieces, caps, plugs and unions etc laid in trenches of following size, Make : SFC / Vectus /Finolex /Supreme/ Prayag with ISI marked

a) 32 mm bore of pipe

b) 63 mm bore of pipe

c) 90 mm bore of pipe

Note: (i). Excavation and earth work will be measure and paid seperately (ii). Make : KPT/SFC / Vectus /Finolex /Supreme/ Prayag with ISI marked

Supply and lay 3-layer PP-R Polypropylene random copolymer) pipes SDR 7.4 & SDR 11 UV stablised and antimicrobial welded having thermal stability for hot & cold water supply including all PP-R plain & brass threaded polypropylen random fittings fixed complete to walls, ceilings or in floors etc with all fittings such as bend, elbows,tees, short pieces connection, back nuts, diminishig pieces, caps, plugs and unions etc laid in Walls, ceiling & laid in floor of following sizes Make :KPT/ SFC / Vectus /Finolex /Supreme/ Prayag with ISI marked

a) 25mm bore of pipe

b) 32 mm bore of pipe

c) 63 mm bore of pipe

d) 90 mm bore of pipe

Taking down the existing unserviceable Gate valve and supply and fix new PP-R Gate valves (brass insert) as per requirement of the site .Make : KPT/ SFC / Vectus /Finolex /Supreme/ Prayag with ISI marked

a) 32 mm bore of pipe

b) 63 mm bore of pipe

M&L for fabrication of MS sheet of thickness not less than 3 mm and frame work for valve chamber cover with angle iron of Fe 410W, Gde E-250 including necessary cutting, welding, grinding etc, alongwith necessary riveted, bolted or welded attachment for locking arrangements complete including painting with two coat of synthetic enamel paint black colour/shade over a coat of red oxide primer complete all as specified and directed

Material and labour for repair to plaster of valve chambers by preparation of bricks surface including rendering 1:4, 10mm thick of fair face of brick work including removing old damaged plaster complete all as specified and as directed.

Material and labour for brick work with subclass 'B' bricks, straight or curved on plan exc 6m mean radius built in CM 1:6 complete all as specified and as directed by Engr-in-charge.

M&L for brick masonary valve chamber of size 1.2 m x 1.2 m x 1.2 m ( internal size) by providing PCC 1:4:8 type D2 foundation 100 mm thick, brick work with CM 1:4and (10mm thick) plastering in CM 1:4 internal surfaces ,external surfaces upto 150mm below GL, 75mm thick PCC 1:2:4 type B as in coping valve chamber cover made up of 40x40x5mm thick angle iron frame and 3.15 mm thick MS sheet cover complete with lockeing arrangement and handle including painting steel surfaces with two coats of enamel paint over a coat of red oxide primer complete all as specified and directed.

All as per item No.22 here-in-before but valve chamber of size 0.9x0.9x0.9m (internal size).

Taking up unserviceable cast iron water mains (including all fittings) with spigot and socket ends and lead joints of following sizes including burning out joints and recovering lead complete all as specified and as directed.

a) 100mm dia

b) 150mm dia

c) 200mm dia

d) 300mm dia

Supply and lay in trenches DI pipe K-7 with spigot ends, centrifugally cast suitable for and including rubber/ tyton joint of following sizes complete all as specified and as directed. Note: Earth work/ excavation, tyton joint, rubber joint etc shall be measured under releavent items.

a) 100mm dia

b) 150mm dia

c) 200mm dia

d) 300mm dia

M&L for run lead joint for spigot and socket pipes and fittings of the following sizes

a) 80 mm dia bore

b) 100 mm dia bore

c) 150 mm dia bore

d) 200 mm dia bore

e) 300 mm dia bore

Material and labour for rubber gasket tyton joint for the following sizes including taking out old unserviceable damaged joint complete all as specified and as directed.

a) 100mm dia bore

b) 150mm dia bore

c) 200mm dia bore

d) 300mm dia bore

Material and labour for bends (any radius and angle) tappers any type (straight, bend, increasing, decreasing or double socket) Tee, pieces, single branch, “ Y” junction, double branch, cross (all socket or socket spigot) collars, caps, caps and plugs suitable for CI / DI pipe upto 300mm bore complete all as specified and as directed.

Material and labour for taking down and removing detoriated pressure gauge of any size including supplying and fixing new water pressure gauge of size 4"dial 0-14 kgs rating with necessary connection pipes etc complete all as specified and directed.

Supply only GI bolt & Nuts, washers of required different sizes complete all as specified and directed.

Demolition of Reinforced cement Concrete of any description and in any position not otherwise specifically provided for complete all as specified and as directed.

M & L for providing Precast RCC 1:2:4, Type B-1 using 20mm graded stone aggregate as in landings, cover slabs [for manholes etc], chullah hoods, chajjas, water troughs, mangers, Shelves and similar articles with plain faces set in cement mortar 1:4 complete all as specified and as directed.

Supply and fixing for TMT bar not less than 10mm dia and over, cut to length, bent to shape require, including cranking, bending spirally for hooping for slab and including binding with MS wire not less than 0.9mm dia or securing with clips complete all as specified and directed.

Supply and fixing wrap around the type single section stainless steel clamp suitable for cast for cast iron / DI pipe sections of size dia 300 mm and length 600 mm Make: Jindal

Supply and fixing wrap around the type single section stainless steel clamp suitable for cast for cast iron / DI pipe sections of size dia 300 mm and length 1200 mm complete all as specified and directed. Make: Jindal

Supply and fixing wrap around the type single section stainless steel clamp suitable for cast for cast iron / DI pipe sections of size dia 200 mm and length 600 mm complete all as specified and directed. Make: Jindal

Supply and fixing wrap around the type single section stainless steel clamp suitable for cast for cast iron / DI pipe sections of size dia 200 mm and length 1200 mm complete all as specified and directed. Make: Jindal

Supply and fixing wrap around the type single section stainless steel clamp suitable for cast for cast iron / DI pipe sections of size dia 150 mm and length 600 mm complete all as specified and directed. Make: Jindal

Supply and fixing wrap around the type single section stainless steel clamp suitable for cast for cast iron / DI pipe sections of size dia 150 mm and length 1200 mm complete all as specified and directed. Make: Jindal

Supply and fixing wrap around the type single section stainless steel clamp suitable for cast for cast iron / DI pipe sections of size dia 100 mm and length 600 mm complete all as specified and directed. Make: Jindal

Supply and fixing wrap around the type single section stainless steel clamp suitable for cast for cast iron / DI pipe sections of size dia 100 mm and length 1200 mm complete all as specified and directed. Make: Jindal

Supply and fixing wrap around the type single section stainless steel clamp suitable for cast for cast iron / DI pipe sections of size dia 80 mm and length 600 mm complete all as specified and directed. Make: Jindal

Supply and fixing wrap around the type single section stainless steel clamp suitable for cast for cast iron / DI pipe sections of size dia 80 mm and length 1200 mm complete all as specified and directed. Make: Jindal

Supply and laying of CPVC pipes SDR 11 & Plain CPVC SDR 11 fittings on walls/ceiling or laying in floors of following sizes complete all as specified and directed.

a) 16 mm bore of pipe

b) 20mm bore of pipe

c) 25 mm bore of pipe

Supply and laying of CPVC ball valve of following sizes complete all as specified and directed.

a) 16 mm bore of pipe

b) 20mm bore of pipe

c) 25 mm bore of pipe

Material and labour for taking 25mm brass ferrule, Straight plain brass ferrule screwed both ends and fixed, connection from the existing CI pipe of any size complete all as specified and directed.

Supply and fix in repairs Ball brass valves, high pressure, with polythene float and fly nut complete, screwed for iron pipe or brass ferrule and fixed of size 20mm dia complete all as specified and directed.

Supply and fix in repairs Ball brass valves, high pressure, with polythene float and fly nut complete, screwed for iron pipe or brass ferrule and fixed of size 25mm dia complete all as specified and directed.

Material and labour for painting on steel surface with synthetic enamel paint two coat over a coat of red oxide incl necessary preparation of new steel surfase.

Supply & Fix in repairs cast iron air release valve with twin air outlet 80mm dia bore with necessary nuts, bolts, gaskets etc., complete all as specified and directed by Engr-in-Charge.

Supply & Fix in repairs cast iron air release valve with twin air outlet 150mm dia bore with necessary nuts, bolts, gaskets etc., complete all as specified and directed by Engr-in-Charge.

Cleaning, grass cutting and removing of dust, raw materials of surrounding area of water supply installation/ overhead tank,panels complete all as specified and directed.

Material and Labour for taking of water sample from INS Rajali and getting it tested from Govt approved water testing lab and submitting the original test report. The Quoted rate is inclusive of Testing Charges, transportation cost etc., complete all as specified and as directed.

M&L for fabrication of mild steel Ladder made out of angle iron alongwith necessary cutting, welding, grinding etc, including painting with two coats of synthetic enamel paint Black /smoke grey colour/shade over a coat of red oxide primer complete all as specified and directed.

SHRI S SANTHAKUMAR (BID ID -3390449)

rc enterprises (BID ID -3390808)

M/s Bakiyalakshmi Enterprises (BID ID -3392989)

Green Ray Technologies (BID ID -3393735)

ANAND ENTERPRISES (BID ID -3391790)

PSK Enterprises (BID ID -3394806)

RD ENTERPRISES (BID ID -3392281)