REPAIR/MAINT OF EXTERNAL WATER SUPPLY, PIPE LINE AND IMPROVEMENT OF INSTALLATION AND ALLIED WORKS AT ZONE-1, 2A, 2B, 3A, 3B AND ZONE-4 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 meters and depositing where directed at a level n.exc 15 meter above the starting point complete all as specified and directed.

Dismantling and taking out from trenches the existing old u/s CI pipe of 150 mm dia with spigot and socketed ends and lead joints including burning out joints and recovering lead etc. 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)

All as per Item No 04 but 100 mm Bore

All as per Item No 04 but 80 mm Bore

Dismantling and taking out from trenches/wall the existing old u/s GI/PPR pipe of 15 mm dia bore including all fittings such as bends, elbow and Tees etc. of following sizes complete all as specified and directed.

All as per Item No 07 but 20 mm bore

All as per Item No 07 but 25 mm bore

All as per Item No 07 but 40 mm bore

All as per Item No 07 but 50 mm bore

All as per Item No 07 but 80 mm bore

Supplying, laying, Jointing and testing in trenches new CI pipe 150 mm dia centrifugally cast class 'LA' suitable for run lead joint with spigot and socketed ends in any length of following sizes complete all as specified and directed. (Note: Excavation and earth work will be measured and paid for separately)

All as per Item No 13 but 100 mm Bore

All as per Item No 13 but 80 mm Bore

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

All as per Item No 16 but 20 mm bore

All as per Item No 16 but 25 mm bore

All as per Item No 16 but 40 mm bore

All as per Item No 16 but 50 mm bore

All as per Item No 16 but 80 mm bore

Dismantling and taking out from trenches/duct/wall the existing old u/s DI pipe any type 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 pipe of 150 mm inner diameter with flanged ends centrifugally casted, Class K9 including necessary joint in any length, ISI Marked (IS 8329 : 2000) laid in trenches complete all as specified and directed.

All as per Item No 23 but 100 mm dia

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 25 but 100 mm dia

3- layer PP-R Polypropylene random copolymer) pipes 20 mm SDR 7.4 & PN 16 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 where ever required nuts, bolts conforming to IS 14846-2000. ISI Marked. complete all as specified and directed.

All as per Item No 27 but 25 mm dia

All as per Item No 27 but 40 mm dia

Material and labour for 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 16 conforming to IS 14846-2000. ISI Marked of following sizes complete all as specified and directed. by Engr-in charge

All as per item No. 30 above but for 100 mm dia.

All as per item No. 30 above but for 80 mm dia.

Supply & fixing in replacement including taking down old Gun metal/globe/ gate valve for dia 40 mm with iron wheel handle screwed at both ends ISI marked suitable for GI pipe of following sizes complete all as specified and directed. Make - Tata/Jindal

All as per Item No 33 but 20 mm bore.

All as per Item No 33 but 25 mm bore.

Taking down CI pipe of 150mm dia carefully and re-laying the same with fitting using lead joint all as specified & directed. Note :- Earth work excavation and lead joint required shall be assured & paid separately .

All as per item No 36 but 100 mm dia

All as per item No 36 but 80 mm dia

All as per Item No 36 but boring under roads/paths suitable for passing the 150mm /100 mm /80 mm bore CI /DI pipe including making arrangement necessary T&P.

S&F in replacement Cast Iron Air release Valves with single air Outlets, conforming to IS 14845-2000, duly 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 40 but 100 mm dia

Supply and fix in replacement horizontal type , cast iron non return / Reflux valve for 150 mm dia pipe ISI marked PN 1.6 with GM flap and seat complete flanged at both ends including jointing and jointing material such as bolts nuts, washers, rubber gasket complete Make: Indian Valve Company, leader/Bir/ Kartar

All as per Item No 42 but 100 mm dia

Supply & fix, 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 , collars, caps ,plugs etc socketed or flanged conforming to IS 1538 laid in trenches or on surface( excavation earthwork , lead joints and flanged joints shall be measured and paid for separately) Fittings shall be of size up to 200 mm bore Make: Tata/Jindal/Electro steel.

Cutting existing CI/DI pipe up to 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)

Cutting existing CI/DI pipe up to 100 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)

Cutting existing CI/DI pipe up to 80 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)

Material and labour for painting to CI/DI Pipe line 150/100/80 mm dia with 1 coat synthetic enamel paint over a coat of red oxide primer of approved colour complete all as specified and as directed by Engr-in-Charge

Demolition of broken valve chamber of any size/type including PCC foundation and angle iron frame with cover complete all as specified 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 of size 50 x 50x6mm embedded in PCC coping 5 cm thick around over brick work for grip and the bottom of M.S cover shall also be provided with 50x50x6mm angle iron frame around to sit over the frame embedded in copying and MS sheet cover shall be 3 mm thick and with locking arrangements 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.

All as per Item No 50 but size 90x90x90 cm

All as per Item No 50 but size 60x60x60 cm

Supply and fix 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 53 but for 25 mm dia

M&L for flanged joint suitable for 150 mm dia CI/DI pipe and fittings joints with rubber fiber board gasket complete all as specified.

M&L for flanged joint suitable for 100 mm dia CI/DI pipe and fittings joints with rubber fiber board gasket complete all as specified.

M&L for flanged joint suitable for 80 mm dia CI/DI pipe and fittings joints with rubber fiber board gasket complete all as specified.

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

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

M&L 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 bearing ISI Mark high pressure with polytene float and fly nut complete including connection with existing iron pipe and brass ferrule with necessary fittings for iron pipe of 40 mm bore.

All as per item No 61 but for 25 mm dia pipe

All as per item No 61 but for 20 mm dia pipe

All as per item No 61 but for 15 mm dia pipe

S & F tank cover for water storage tank of capacity 500/1000/2000 ltrs (cylindrical vertical with closed top) complete all as specified and directed.

Dismantling old unserviceable polythene water storage tank of capacity exceeding 500 ltr from any height 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 66 but of tank capacity exceeding 1000 ltr.

All as per item No 66 but of tank capacity exceeding 2000 ltr

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

All as per item No 69 but of tank capacity 1000 ltr

All as per item No 69 but of tank capacity 2000 ltr

Cleaning and removing all scales and deposited materials in water tank of capacity exceeding 250 ltr not exceeding 500 ltrs at any height by applying bleaching powder, brushes for removing deposited materials, including cleaning the surrounding area and darning out existing water complete all as specified and directed. Note- The cost of bleaching powder brush for removing scales & cleaning the surrounding area near tank and dumping the mud outside the premises 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 72 but of tank capacity exceeding 500 ltr not exceeding 1000 ltr.

All as per item No 72 but of 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 75 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 77 but 25 to 32 mm bore

All as per item No 77 but 20 mm bore

Screwing existing steel tubing of following sizes for alterations or additions 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 80 but 25 to 32 mm bore

All as per item No 80 but 20 mm bore

100 mm thick PCC 1:3:6 type C-2 using 40 mm graded crushed 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 and fix, 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 with 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 86 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 returning filling and removal of surplus soil and make the line leakage proof complete all as specified and as directed by engineer in charge. (CI Fitting shall be measured and separately

Supply & fix, 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 , collars, caps ,plugs etc socketed or flanged conforming to IS 1538 laid in trenches or on surface( excavation earthwork , lead joints and flanged joints shall be measured and paid for separately) Fittings shall be of size up to 200 mm bore Make: Tata/Jindal/Electro steel.

Taking out the old blocked/rusted GI Pipe from its original position including fittings of size 15 to 25mm and cleaning the internal portion de-scaling to opening blockage and refining the same to its original position including making water connection complete all as specified and as direction by Engineer-in -charge

All as per item No 90 above but size 40 to 80mm. Note 1:-The contract sum shall be arrived at after deducting amount of schedule of credit from the total quoted amount. Note 2-Contractor's supervisor and main worker would wear shirt/T-shirt of colour sky blue/brown/yellow preferable embossed with contractor's firm name while carrying out any activities in defense area for better check of security purpose. Note 3:-The tendered (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)

D G Corporation

M/S Deep-Jeet

Anil Kumar Sarmah

M/S ROY TRADING