REPAIR / REPLACEMENT AND MAINTENANCE OF EXT WATER SUPPLY PIPE LINES AND CONNECTED WORKS AT AF STN ADAMPUR

Amount

Excavation in trenches in soft/loose soil not exceeding 1.50 metre wide and not exceeding 1.50 metre in depth; for foundation, etc. and getting out complete, all as specified.

Returning filling in, including spreading, levelling, watering and well ramming in layers not exceeding 25 cm thick each, complete, all as specified.

Removing excavated spoil to a distance not exceeding 50 metre and depositing where directed at a level not exceeding 1.5 metre above the starting point complete, all as specified.

Boring holes under roads, paths, hardstanding, pavements, runway, taxy track of any desciption by trenchless technology using ultrasound technique or by maual bring method of hole technique for passing pipe lines of the followig size: -

15 to 50 mm bore pipe line

80 to 200 mm bore pipe line

NOTES APPLICABLE TO SERIAL ITEM 1 TO 4: (a) Excavation work shall be carried out manually only. (b) LT/HT cable, water supply/ sewage/telephone lines, if any, get damaged during excavation & earthwork, demolition of PCC shall be repaired by the contractor immediately as per existing specifications to the entire satisfaction of Engineer-in-Charge.

Ductile iron pipes, class K-7, centrifugaly cast, fanged ends, ISI marked in any length with & including tyton Joints laid in trenches, ducts complete all as specified of size: -

100 mm bore

150 mm bore

Ductile iron pipes, class K-7, centrifugaly cast, spigot & socket ends, ISI marked in any length with & including tyton Joints laid in trenches, ducts complete all as specified of size: -

100 mm bore

150 mm bore

NOTE APPLICABLE TO SERIAL ITEM 5 & 6:- Excavation and earthwork & CI/DI fittings will be measured and paid for separately under respective item of ‘BoQ’.

DI specials/ fittings of any type, radius, angle, tapers, increasing, decreasing sockets, tees, tail pieces and collars etc complete.

Dismantling and taking out existing under ground CI/DI pipes, Spigot and socketed / flanged/screwed ends of any length & type, including necessary fittings, buring of lead/rubber joints if any and bailing out water complete all as specified of size: -

80-100 mm bore

150 mm bore

200 mm bore

Relaying serviceable CI/DI pipes of any description (after cleaning) with necessary fittings, in trenches, ducts complete all as specified of size: -

80-100 mm bore

150 mm bore

200 mm bore

NOTE APPLICABLE TO SERIAL ITEM 8 & 9:- Excavation and earthwork will be measured and paid for separately under respective item of ‘BoQ’.

Cutting the existing CI/DI pipes in position for inserting new pipe attachment/ tees or for making new branches etc. with joint & jointing material, including necessary excavation & earth work complete all as specified:-

80 mm bore

100 mm bore

150 mm bore

200 mm bore

NOTE:- Excavation and earthwork & CI/DI fittings will be measured and paid for separately under respective item of ‘BoQ’.

Run lead joint including jointing material like spun yarn, caulking lead & tools etc IN REPAIR, complete all as specified for CI pipes of size: -

80 mm bore

100 mm bore

150 mm bore

200 mm bore

Joint with rubber or fibre board gasket including provision of bolts, nuts, washers and white lead or mineral oil etc complete all as specified for CI/DI flanged pipes of size: -

100 mm bore

150 mm bore

200 mm bore

D' Joint with two numbers of round rubber 'O' rings and one DI/GI flate 'O' ring including necessary bolt, nut and washer, IN REPLACEMENT, complete for DI/GI pipes of size: -

80 mm bore

100 mm bore

150 mm bore

Repairing GI/CI pipe line, upto 150 mm bore of any descripton to prevent leakage of water by welding at directed location to the entire satisfaction of Engineer-in-Charge including necessary excavation & earth work complete.

Rectification of leakage in CI/DI pipe line making it leak proof to the entire satisfaction of Engineer-in-Charge by filling jointing material etc.including necessary excavation & earth work complete CI/DI pipe of size: -

80-100 mm bore

150-200 mm bore

Cast Iron Sluice valve flanged Type, class PN 1.6, ISI marked (IS- 14846-2000) complete with stainless steel spindle flanged both ends drilled CI gate with brass ring and iron wheel handle complete all as specified with & including necessary flanged joints & jointing material, IN REPLACEMENT suitable for DI/CI pipe of size: -

80 mm bore

100 mm bore

150 mm bore

200 mm bore

Cast Iron Non return/Reflux valve flanged Type, class PN 1.6, ISI marked (IS- 14846-2000) complete with stainless steel spindle flanged both ends drilled CI gate with brass ring and iron wheel handle complete all as specified with & including necessary flanged joints & jointing material, IN REPLACEMENT suitable for DI/CI pipe of size: -

80 mm bore

100 mm bore

150 mm bore

CI foot valve, flanged type, ISI marked, with flanged joint & jointing material, IN REPLACEMENT complete, all as specified suitable for CI/DI pipe of size as under: -

40-50 mm bore

75-80 mm bore

150 mm bore

Construction of brick masonary valve pit with and including MS sheet cover fabricated from 3 mm thick MS sheet and frame of angle iron 40 mm x 40 mm x 5 mm with fixing arrangement hinges and locking arrangement and painting two coats of synthetic enamel paint over a coat of red oxide primer on MS cover and frame including necessary excavation and earth work in any type of soil, returning, filling in approved soil, disposal of surplus soil to a distance not exceeding 50 metre, 150 mm thick PCC 1:4:8 type D-2 using 40 mm graded stone aggregate as in foundation, brick work using pulverised fuel ash lime bricks in cement mortar 1:6, 15 mm plastering in cement mortar 1:4 both internally and externally, 100 mm thick PCC 1:2:4 type B-1 using 20 mm graded stone aggregate as in flooring complete all as specified, including demolition of existing valve pit having iternal size: --

Drilling and tapping CI/DI/GI water mains (in position) for branch connections with & including provision of suitable size ferrule & GI nipple including necessary excavation & earth work for internal dia of pipe: -

15 mm bore

20 mm bore

Mild steel framed work such as grills, grating etc. with ends of bars shouldered and or riveted or forged into spikes, framed guard bars, ladders; framed balusters; walk ways; railings; framework of water tanks and similar work confirming to Fe-290-Gde E-165, duly painted with two coats of synthetic enamel paint over a coat of red oxide primer including preparation of surfaces, IN REPAIR, complete all as specified.

Steel tubes ‘medium grade’, ISI marked, galvanized with all fittings, laid in trenches including taking up or down existing unserviceable steel tubing and connections, complete all as specified, of size as under: -

15 mm bore

20 mm bore

25 mm bore

40 mm bore

50 mm bore

80 mm bore

NOTE:- Excavation and earthwork will be measured and paid for separately under respective item of ‘BoQ’.

Gun metal globe/gate valve, with ron wheel head, ISI marked (IS:9890), screwed both ends for GI tubes, IN REPLACEMENT, complete all as specified of size: -

15 mm bore

20 mm bore

25 mm bore

40 mm bore

50 mm bore

NOTE:- (i) To maintain utmost security at AF Station, contractor will arrange his workmen along with T&P in a manner that nonfunctional water supply line and connected items is made functional swiftly within 24 hour of receiving of complaint from the MES, during entire contract period. (ii) Not withstanding with the provision of "Compensation for Delay' envisaged under condition 50 of IAFW-2249, General Conditions of Contracts, additional compensation @ Rs. 500/- day will be charged from contractor in case he fails to make the water supply line and connected items functional to the entire satisfaction of Engineer-in-Charge within 24 hour of receiving of complaint from the MES regarding non working water supply line.

M/s Sahib and Company

M/S GURBACHAN SINGH