REPAIR, MAINTENANCE AND REPLACEMENT OF EXTERNAL WATER SUPPLY PUMPING / DISTRIBUTION NETWORK IN TECH AND DOMESTIC AREA AT AIR FORCE STATION THANJAVURREPAIR, MAINTENANCE AND REPLACEMENT OF EXTERNAL WATER SUPPLY PUMPING / DISTRIBUTION NETWORK IN TECH AN

Amount

Excavation in trenches not exceeding 1.5 m wide and not exceeding 1.5 m deep for laying of cables, pipes, foundation for poles etc. and getting out in hard/dense soil.

Returning, filling in, including spreading, leveling, watering and well ramming in layer not exceeding 25 cm thick complete in hard/dense soil.

Removal of surplus soil to a distance exc.50m and not exc 200 m and depositing at the location all as specified and directed.

Taking up/down rusted/damaged/unserviceable GI tubing with all fittings including cleaning for re-fixing or removal to stores of following size :-

100mm dia

80mm dia

50mm dia

40mm dia

25mm dia

20mm dia

15mm dia

Supply and fix Galvanized Iron water tubes, medium grade including provision of all fittings, laid in trenches / wall/ ceiling complete of following sizes all as specified and as directed.

100mm dia

80mm dia

50mm dia

40mm dia

25mm dia

20mm dia

15mm dia

Relaying only GI tubing of medium grade 100 mm bore obtained from item No. 4 above, in trenches/walls/ ceiling including provision of new fittings complete in old/new location of following sizes all as specified and as directed. Note : Excavation and earth work where required shall be measured and paid separately under relevant items of this Schedule:-

100mm dia

80mm dia

50mm dia

40mm dia

25mm dia

20mm dia

15mm dia

Supply & fixing Gun-metal, globe or gate valves, heavy duty, with iron wheel head, screwed both ends (ISI marked) including taking down complete all as specified & directed. Makes – SEIKO/JINDAL/LEADER/ZOLTO

15 mm dia

20 mm dia

25 mm dia.

40 mm dia

50 mm dia

80 mm dia

Supply and fix CI sluice valve of pressure Class PN - 1.6 flanged, 150 mm dia and drilled at both ends conforming to IS 14846 with ISI mark, having steel spindle and gunmetal rings including wheel for operation all as specified and all jointing materials, bolts, nuts, washers, etc, all as specified and as directed including dismantling and taking up unserviceable of the following sizes complete:-

All as per item No.8 above but 100 mm bore.

All as per item No.8 above but 80 mm bore.

Taking up/down rusted/damaged/unserviceable CI/DI pipe line with all connected fittings including cleaning for re-fixing or removal to stores of following size :-

100 mm dia.

80 mm dia.

Supply and fix CI fittings, heavy duty, such as bends, tapers, tees, collars, tail pieces, reducers, etc laid and jointed with suitable push on joints complete upto 150 mm dia including takingdown all as directed and specified.

M & L for cast iron pipes with spigot and socket ends, centrifugally cast, class LA, of size 80 mm dia laid in trenches complete all as specified and as directed

M & L for cast iron pipes fixed in repairs with spigot and socket ends, centrifugally cast, class LA, of size 100 mm dia laid in trenches complete all as specified and as directed.

M & L for cast iron pipes fixed in repairs with flanged ends, centrifugally cast, class B, of size 100 mm dia laid in trenches complete all as specified and as directed.

M & L for cutting of pipe welding work for jointing the CI and GI/MS pipe line including transportation charges collar tail piece complete all as specified and as directed. M & L for cutting of pipe welding work for jointing the CI and GI/MS pipe line including transportation charges collar tail piece complete all as specified and as directed.

Supply and fix in repairs float valve (ball valve) high pressure of PTMT with epoxy coated aluminium rod and high density plastic ball screwed for iron pipe 25 mm dia.

Supply and fix in repairs float valve (ball valve) high pressure of PTMT with epoxy coated aluminium rod and high density plastic ball screwed for iron pipe 20 mm dia.

Demolishing the damaged brick masonry valve chamber of any size including taking down mild frame rusted and corroded MS sheet all as specified and as directed.

M&L for brick valve chamber with inner dimensions of 600 mm X600mmX 600mm internal size including necessary earth work excavation PCC (1:4:8) type D2 in foundation, brick work in CM (1:4), PCC 1:2:4 type B1 in coping, rendering 15 cm thick rendering in cement mortar in CM 1:4 including provision of mild steel cover 3 mm thick on 40x40x6mm angle iron frame work with 2 coats of synthetic enamel paint over a coat of zinc chrome primer and locking arrangement complete all as specified

Supply & fixing in repair swing check non return valve IS 5312 part I ,PN 1.6 both end flanged 80 mm bore CI body cover & gunmetal body ring , natural rubber door face ,SS hinge pin, flange drilling complete with jointing material such as , gasket, nuts, bolts, washers etc, all as specified . Make : Kalpana/ Kirloskar/ kartar.

All as per item No 21 above but for 50 mm.

S&F in repair mild steel for frame work such as grills, gratings for water tanks and similar work confirming to Fe 290 Gde E-165 all as specified and directed.

Cutting of bushes and cleaning the area around domestic, inliving and tech pump house and OH tank, surrounding the reservoir near including cutting the bushes, trimming the trees, complete all as specified and as directed.

Supply and fix in repairs Air release valve with single air out let confirming to IS: 14845 PN 1.0 of body, cowl, HP cover &LP cover made up of Cast iron ,Gun metal HP-orifice plug, rubber lined seasoned timber Float for HP chamber, Vulcanite lined seasoned timber Float for LP chamber ,natural rubber LP seat ring of size 100 mm dia and fixing complete all as directed.

All as per item No.25 above but for 80 mm.

S&F in repairs mild steel , plain black sheet cut to size holes punched including round headed screws , clout nails or rivets and fixes to steel framing with plain 40 mm lap joints with riveted or welded seams including bending or turning up, mitered angles , but in hearths, covering to door shutters, water tanks cut to size edges beaded if directed, holes punched etc all as directed.

Material & Labour for 100 mm thick PCC road cutting for laying of GI pipe all as specified and directed.

Taking out the existing corroded sump/valve chamber cover frame work, M & L for new cover with M/S frame work made out of 3mm thick mild steel sheet with mild steel flat/ Angle iron base frame below the cover complete with hinges & locking arrangement and grouting in cement concrete including 2 coats of oil paint over a coat of red oxide primer all as specified and directed.

S & F in repairs pillar taps, cast copper alloy, with capstan heads, chromium plated, screwed down high pressure, with or without lettered 'Hot' or 'Cold' with long screwed shanks and fly-nuts, screwed for iron pipe and fixed of size 15 mm dia of fancy type complete all as specified and as directed.

S & F in repairs Bib taps of 15 mm dia, fancy type, Chromium plated cast copper alloy with crutch or butterfly handle screwed down, screwed for iron pipe or for brass ferrule and fixed all as specified and directed.

Cutting existing steel tubing for repairs ( Each cut measured) for pipe of following size :-

40 mm to 50 mm bore

20 mm to 25 mm bore

M&L for brick work with sub class B bricks straight or curved on plain in CM 1:6 including demolision of existing complet.

M&L for PCC ( 1:2:4) type B2 using 20 mm graded stone aggregate as in coping including demolision of existing complet..

M&L for plain cement concrete (1:3:6) type D2 using 40 mm grades stone aggregate as in foundation including finishing to exposed concrete surfaces even and fair and provision of necessary form work for rough finished surfaces with demolition of existing complete all as specified.

S&F in repairs 3 Layer PP-R Polypropylene random copolymer concealed pipes of size 50 mm outer dia SDR 7.4 (PN 1.6) UV stabilized and antimicrobial fusion welded having thermal stability for hot and cold water supply including all PP-R plain & brass threaded polypropylenes random fittings laid in trenches.

S & F in repairs display board made out of magnetic white board silver aluminium frame duly marked with name of pump house with description of installation and layout diagram, formation & Sub division & location, radiant sticker with approved colour including fixing arrangement on wall .size of board : 4ft x 3ft all as specified and directed by EIC. Note :Layout diagram and description details to be collected from engineer in charge

M&L Cutting the existing 100 mm GI pipe and inserting the TEE(100X100X50) and necessary threading all as directed

Supply and fix in repairs Ductile iron specials as required for 150 mm / 100 dia all as directed and specified.

Supply and laying in repairs for Ductile Iron pipes with spigot and socket ends, confirming to IS 8329, class K9, of size 150 mm dia laid in trenches complete all as specified and as directed.

All as per item No 40 here in before but 100 mm dia. Note :- for item No 40 & 41 necessary earth work excavation if required will be measured and paid separately under respective item of sch.

Material & Labour for Tyton neoprene gasket of size 150mm dia pipe all as specified and directed.

All as per item No 42 here in before but 100 mm dia. sch.

Taking down and Supply and laying/ fixing of MS pipes line , confirming to IS 3589, 5MM thick, of size 250 mm dia laid in trenches or fixing on wall complete all as specified and as directed.

Taking down and Supply and laying/ fixing of MS pipes line with flande as required , confirming to IS 1239 Part-I ,Class-B , of size 100 mm dia laid in trenches or fixing on wall complete all as specified and as directed.

Supply and fixing in repairs 100 MM butterfly valve PN16 pressure class Wafer type butterfly valve 1078.

M&L for PCC ( 1:4:8) type D2 using 40 mm graded stone aggregate as in foundation.

M&L for rendering 15mm thick in mm 1:4 on fair faces of brick work or concrete surfaces.

M/S. SRI RAMANUJA CONSTRUCTIONS

D.R ASSOCIATES