REPAIR/MAINTENANCE OF EXTERNAL WATER SUPPLY PIPE LINE AND IMPROVEMENT OF INSTALLATION AND ALLIED WORKS AT ZONE 1 (A, B, C) AND ZONE 5 UNDER GE (S) TEZPUR

Amount

Excavation in trenches in soft/loose soil n.exc 1.5 mtr in depth and n.exc 1.5 mtr wide and getting out including bottom surface to required level complete all as specified and directed.

Returning, filling in including spreading, leveling, watering and well ramming in layers n.exc. 25 cms thick in soft/loose soil after the cables are laid and tested complete all as specified and directed.

Removal of surplus soil to a distance n.exc 50 metres and depositing where directed at a level n.exc 15 metre above the starting point complete all as specified and directed.

Dismantling and taking out from trenches/wall the existing old unervicable GI/PPR pipe 15 mm bore dia including all fittings such as bends, elbow and Tees etc.Complete all as specified and directed.

All as per Item No 04 above but 20 mm bore dia

All as per Item No 04 above but 25 mm bore dia

All as per Item No 04 above but 40 mm bore dia

All as per Item No 04 above but 50 mm bore dia

All as per Item No 04 above but 80 mm bore dia

All as per Item No 04 above but 100 mm bore dia

Supplying, laying, jointing and testing GI Pipe 15 mm bore dia medium grade ISI marked inclusive of all fittings such as bends, Tee, union, elbow, reducer and Socketed etc.complete all as specified and directed. (Note: Excavation and earth work will be measured and paid for separately)

All as per Item No 11 above but 20 mm bore dia

All as per Item No 11 above but 25 mm bore dia

All as per Item No 11 above but 40 mm bore dia

All as per Item No 11 above but 50 mm bore dia

All as per Item No 11 above but 80 mm bore dia

All as per Item No 11 above but 100 mm bore dia

S&F 3 layer PP-R (Polypropylene random polymer) pipes 20 mm dia bore PN 16 & SDR 7.40 UV stablised and antimicrobial fusion welded having thermal stability for hot & cold water supply all PP-R plain & brass threaded polypropylene random fittings laid in trenches/fixed to wall including necessary clamps, nuts, bolts where ever required conforming to IS 14846-2000. ISI Marked.Complete all as specified and directed.

All as per Item No 18 above but 25 mm dia bore

All as per Item No 18 above but 40 mm dia bore

Dismantling and taking out from trenches/duct/wall the existing old unservicable DI pipe 100/150 mm dia bore with spigot and socketed ends including all fittings such as bends, elbow and Tees etc. of following sizes complete all as specified and directed. (Note: Excavation and earth work will be measured and paid for separately)

Supply, laying, jointing and testing ductile iron pipes of 150 mm inner diameter with Spigot and Socket ends , Class K7 including rubber tyton gasket joints in any length, ISI Marked (IS 8329 : 2000) laid in trenches complete all as specified and directed.

All as per Item No 22 above but 100 mm bore dia

Supply & fixing in replacement including taking down old Sluice valve of size 150mm dia in replacement including CI body with Gun metal/Steel spindle with hand operated iron wheel both ends flanged and drilled including ring, nuts, bolts class PN 1.6 conforming to IS 14846-2000. ISI Marked .complete all as specified and directed. by Engr-in charge

All as per Item No 24 above but 100 mm dia.

All as per Item No 24 above but 80 mm dia.

Supply and fix in replacement Butterfly valve for 150 mm dia pipe ISI marked with GM flap and seat complete flanged at both ends including jointing and jointing material such as bolts nuts, washers, rubber gasket complete all as specified and directed.

All as per Item No 27 above but 100 mm dia.

All as per Item No 27 above but 80 mm dia.

Supply & fixing in replacement including taking down old Gun metal/globe/ gate valve for dia 50 mm with iron wheel handle screwed at both ends ISI marked suitable for GI pipe.complete all as specified and directed.

All as per Item No 30 above but 25 mm bore.

All as per Item No 30 above but 20 mm bore.

All as per Item No 30 above but 15 mm bore.

Taking down and Relaying serviceable CI/DI pipe 150 mm dia . Note : Lead joint and earth work shall be measured and paid separately.

All as per item No. 19 above but 100 mm dia.

All as per item No. 19 above but 80 mm dia.

Boring under roads/paths suitable for passing the 150mm /100 mm /80 mm bore CI /DI pipe including making arrangement necessaru T&P as required,.

S&F in replacement Cast Iron Air release Valves with single air Outlets ISI marked with nut, bolts, washers and rubber gasket of following sizes 80 mm dia bore and fixing up in Cast Iron Water supply mains complete all as specified and directed.

All as per item No. 38 above but 100 mm dia pipe

Supply and fix in replacement cast iron non return valve for 150 mm dia pipe ISI marked with GM flap and seat complete flanged at both ends including jointing and jointing material such as bolts nuts, washers, rubber gasket complete all as specified and directed.

All as per item No.40 above but 100 mm dia pipe

Cutting existing CI/DI pipe upto 150 mm dia in position for inserting fittings/valves including taking out residual water from the pipe line ( Excavation , earthwork joints, and jointing material shall be measured and paid for separately)

All as per item No.42 above but 100 mm dia.

All as per item No. 42 above but 80 mm dia.

Material and labour for painting to CI/DI Pipe line 150/100/80 mm dia with two caots of synthetic enamel paint over a coat of red oxied primer of approved colour complete all as spacified and as directed by Engr-in-Charge

Demolation of broken valve chamber of any size/type including PCC foundation and angle iron frame with cover complete all as spacified and as directed by Engr-in-Charge

Material & labour for construction of brick missionary valve pit of size 1000x1000x900mm (internal dimension) with frame of angle iron and MS sheet cover 3 mm thick and locking arrangements and 40x40x6 mm angle iron frame duly painted with two coats of synthetic enamel paint over a coat of red oxide primer including dismantling and removal of existing broken MS frame and cover etc. complete all as specified and shown in drawing.

Material & labour for construction of brick missionary valve pit of size 900x900x900mm (internal dimension) with frame of angle iron and MS sheet cover 3 mm thick and locking arrangements and 40x40x6 mm angle iron frame duly painted with two coats of synthetic enamel paint over a coat of red oxide primer including dismantling and removal of existing broken MS frame and cover etc. complete all as specified and shown in drawing.

Construction of brick masonary valve pit in replacement of size 60X60X60 CM ( internal size) type A for gate valave 50/40/25 mm dia complete all as specified and shown on drawings including MS cover 3 mm thick including locaking arrangement and 40x40x6 mm angle iron frame duly painted with two coats of sythetic enamel paint over a coat of red oxide primer including necessary earthwork , material and labour complete

Supply and fix in replacement PP-R Gate valves (brass insert) for dia 20 mm including taking down old unserviceable Gate valve complete all as specified and directed.

All as per item No.50 above but 25 mm dia

M&L in replacement for flanged joint suitable for 150 mm dia CI/DI pipe and fittings joints with rubber fiber board gasket complete all as specified. Note :- only rubber fibre board gasket will be changed to make flanged joint serviceable.

All as per item No. 52 above but 100 mm dia

All as per item No. 52 above but 80 mm dia

M&L in replacement for run lead joint suitable for 150 mm dia CI/DI pipe and fittings joints complete all as specified.

M&L in replacementfor run lead joint suitable for 100 mm dia CI/DI pipe and fittings joints complete all as specified.

M&L in replacement for run lead joint suitable for 80 mm dia CI/DI pipe and fittings joints complete all as specified.

Supply fix in repair Ball valves 40 mm dia bearing ISI Mark high pressure with polytene float and flynut complete including connection with existing iron pipe and brass ferrule with necessary fittings.complete all as specified.

All as per item No. 58 above but 25 mm dia pipe

All as per item No. 58 above but 20 mm dia pipe

All as per item No. 58 above but 15 mm dia pipe

Supply & fixing in replacement including taking down old Tank cover for water storage tank of capacity 500/1000/2000 ltrs (cylindrical vertical with closed top) complete all as spacified and directed.

Dismantling old unserviceable polythene water storage tank of capacity exceeding 500 litres from any hight complete all as specified and directed. Note- The cost of disconnecting inlet and outlet water tube is deemed to be included in the unit rate.

All as per item No. 63 above but tank capacity exceeding 1000 litres.

All as per item No. 63 above but tank capacity exceeding 2000 litres.

S & F three layered Rotational moulded polyethylene water storage tanks 500 ltrs (cylindrical vertical with closed top) hoisted and fixed in position all as specified and dircted. Note- The cost of connecting inlet and outlet water tube is deemed to be included in the unit rate.

All as per item No. 66 above but tank capacity 1000 litres.

All as per item No.66 above but tank capacity 2000 litres.

Cleaning and removing all scales and deposited materials in water tank of capacity exceeding 250 ltr not exceeding 500 ltrs at any hight by applying bleaching powder, brushes for removing deposited materials, including cleaning the surrounding area and draning out existing water complete all as specified and directed. Note- The cost of bleaching powder brush for removing scals & cleaning the surrounding area near tank and dumping the mud outside the primises shall be deemed to include in the above item rate. The quoted rate shall be deemed to include the cost of writing the date of cleaning on the tank.

All as per item No.69 above but tank capacity exceeding 500 ltr not exceeding 1000 ltr.

All as per item No.69 above but tank capacity exceeding 1000 ltr not exceeding 2000 ltr.

Drilling and tapping cast iron water mains of dia 20 mm bore (in position) for branch connections of the internal dia of following sizes including all fittings complete all as specified and directed.

All as per item No.72 above but dia of 15 mm bore

Cutting Existing steel tubing for alteration or additions of dia 40 to 50 mm bore (each cut measured) in any condition complete all as specified and directed.

All as per item No.74 above but 25 to 32 mm bore

All as per item No.74 above but 20 mm bore

Screwing existing steel tubing of following sizes for alterations or addiitions of dia 40 To 50 mm bore (or lengthening screw on pipe to form connector) in any condition complete all as specified and directed.

All as per item No.77 above but 25 to 32 mm bore

All as per item No.77 above but 20 mm bore

100 mm thick PCC 1:3:6 type C-2 using 40 mm graded crused stone aggregate as in floor finishes including finishing the surface even and smooth without using extra cement complete all as specified and directed by Engr-in - charge

Supply & fixed in repairs ,mild steel clamp suitable for cast iron pipe line 150 mm dia made out from mild steel flat 40 x 6 mm thick, bend to shape and drilling hole two nos for providing bolt of size not less than 20 mm dia complete all as specified and directed.

Supply & fixed in repairs straight plain brass ferrules of 20 mm dia bore (or connecting screw) of following sizes, screwed both ends complete all as specified and directed.

Cutting existing old/rusted leakage pipe line along wth wall or in floor or in trenches and taking down/ up and providing new short length/ pieces of GI tubing 0 to 2 feet length along with GI fitting i.e union, sockets, tee, elbow, nipple , long screws etc all as per site requirement and making the pipe line leakage proof and restore the supply of size 15 to 20 mm dia complete with threading etc complete all as specified and as directed by engineer-in-charge

All as per item No.83 above but 25 to 50 mm

Rectification of leakage in CI Pipe line 80 to 150 mm dia including filling of lead as per requirement to the existing joint complete with excavation returing filling and removal of surplus soil and make the line leakage proof cmplete all as specified and as directed by engineer in charge. (CI Fittting shall be measured and separately

Supply & fix in replacement for Ductile cast iron bends in replacement ( of any size any radius and any angle) taper any type straight, bend increasing and decreasing or double socket etc, Tee pieces single branch piece, Y pieces double branch piece, cross piece tail , collers, caps ,plugs etc socketed or flanged conforming to IS 1538 laid in tenches or on surface( excavation earthwork , lead joints and flanged joints shall be measured and paid for separately) Fittings shall be of size upto 200 mm bore

Taking sample of water from jack well/filter house and getiing tested from PHED, Raw water test to be carried out by Directorate of PUBLIC HEALTH ENGINEERING OFFICE by collection of sample from source of water physical and chemical and BACTERIOLOGICAL ANALYSIS to be carried out in every months and report shall be submitted to Engineer-in-Charge duly signed.

Taking out the old blocked/rusted GI Pipe from its original position including fittings of size 15/80 mm and cleaning the internal portion scaling to opening blockage and refixing the same to its original position including making water connection complete all as specified and as direction by Engineer-in -charge

S&F in repair pressure gauge 4" dial 0-14 kgs rating with syphon & valve complete all as specified and directed. Note 1:-The contract sum shall be arrieved at after deducting amount of schedule of credit from the total quated amount. Note 2-Contractor's supervisor and main worker would wear shirt/T-shirt of colour sky blue/brown/yellow preferable embosed with contractor's firm name while carriying out any activities in defence area for better check of security purpose. Note 3:-The tenderer (all eligible contractors) shall ascertain the taxes & levies as on date. The subject tender caters all the taxes & levies as on date including the latest notification of GST issued as on date ( issued by Central Board of Indirect Taxes and Customs)

M/S S K ENTERPRISES

D G Corporation

Chinmay Traders

Flint India

Truly Technos LLP