REPAIR, MAINTENANCE AND REPLACEMENT OF EXTERNAL WATER SUPPLY PUMPING / DISTRIBUTION NETWORKS IN TECH AND DOMESTIC AREA AT AFS THANJAVUR

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 :-

150mm dia

100mm dia

80mm dia

50mm dia

40mm dia

25mm dia

20mm dia

Re-Fixing / Re-laying only galvanised Iron water tubes, medium grade including provision of required fittings, laid in trenches / wall / ceiling complete of following sizes all as specified and as directed. NOTE :- GI Pipe will be issued under Schedule 'B' as free for fixing.

150mm dia

80mm dia

50mm dia

40mm dia

25mm dia

Supply & Fixing galvanised 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.

150mm dia

100mm dia

80mm dia

50mm dia

40mm dia

25mm dia

20mm dia

Supply & fixing Gun-metal, globe or gate valves, heavy duty, with iron wheel head, screwed both ends (ISI marked) including taking down the existing 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:-

150 mm bore

100 mm bore.

80 mm bore.

Taking up/down rusted/damaged/unserviceable CI pipe 100mm dia with all connected fittings including cleaning for re-fixing or removal to stores.

Supply and fix Cl fittings, heavy duty, such as bends, tapers, tees, collars, tail pieces, reducers, etc. laid and jointed with suitable push on joints complete upto 150mm dia all as directed and specified by Engr-in-charge.

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

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

M&L in 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 including demolishing the damaged brick masonry valve chamber of any size and taking down valve chamber MS cover 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 Srl No 18 here-in-before but for 50 mm.

S&F in repairs Cl body foot valve ball type with threaded end 80mm dia for 10HP Centrifugal pump set suction line (80mm GI pipe) with gasket. Make : Nomex/kirloskar/kartar/kalpana or eqvt.

S&F in repairs Cl body foot valve ball type with threaded end 63mm dia for 5HP Centrifugal pump set suction line (65mm GI pipe) with gasket. Make : Nomex/kirloskar/kartar/kalpana or eqvt.

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

S&F in repairs Air release valve fixed in repairs with double air outlet 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 float for LP chamber, natural rubber LP seat ring of size 100mm dia and fixing complete all as directed.

All as per Srl item No 21 here-in-before but for 80mm

S&F for new cover with MS frame work as in LI/FI anmd covered with 3mm thick MS sheet complete with hinges & locking arrangements and grouting in cement concrete complete with taking down the existing corroded sump/valve chamber cover with frame including two coats of synthetic enamel paint over a coat of red oxide primer akk as specified and 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 as directed.

Cutting existing steel tubing in repairs and inserting of tee/bend for making new connection (Each cutting shall be measured) for pipe of following size :-

40 mm to 50 mm bore

25mm bore

M&L for PCC 1:2:4, type B2 (using 20 mm graded stone aggregate) as in coping all as specified and as directed.

M&L for plain cement concrete 1:3:6, type D2 (using 40 mm grade 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 and as directed.

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 complete all as specified and as directed.

S&F repairs in LED display board for Pump house made out with transparent acrylic sheet front and other side steel sheet of suitable gauge and bracing four corner with aluminium frame. Size of display board 70cm x 40cm x 10cm internally fitted with LED strip to signing in night and duly marked name of pump house with tape / computerised steaker including fixing arrangement fixed in front side gate of pump houses complete all as specified and directed.

M&L cutting the existing 150mm GI pipe and inserting the TEE (150 x 150 x 150mm) and necessary threading all as directed.

S&F in repairs brass valve V2t type, ISI marked 40mm dia including taking down complete all as directed.

S&F in repairs brass valve V2t type, ISI marked 25mm dia including taking down complete all as directed.

S&F in repairs 100 MM butterfly valve PN 1.6 pressure class Wafer type butterfly valve 1078 including taking down complete all as directed.

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

M&L for rendering 10mm thick in mm 1:4 on fair faces of brick work or concrete surfaces including two coats of cements based with primer and preparations complete all as directed.

BKR Enterprises

D Subramani and Sons