SPECIAL REPAIRS TO WATER DISTRIBUTION LINES AT AFS BEGUMPET, CAW AND BOLTON ROAD UNDER GE (AF) HAKIMPET

Amount

Excavation in trenches not exc. 1.5 mtr wide and not exc. 1.5 mtr deep in any type of soil and getting out for laying pipes complete all as specified.

Returning, filling in soils, including spreading, leveling, watering and well ramming in layers not exc. 25 cm thick complete all as specified.

Removal of excavated material to a distance not exc. 50 mtr away from starting point and depositing where directed at a level not exc. 1.5 mtr above starting point complete all as specified and as directed.

Taking up or down GI water tubing and connections of pipe and fittings including segregating of serviceable pipe and fittings and keep in safe custody for reuse in the work and removing the un-serviceable pipe and fittings from site of work complete all as specified and directed by the Engineer-in-Charge

15 mm dia GI tubing

20 mm dia GI tubing

25 mm dia GI tubing

40 mm dia GI tubing

50 mm dia GI tubing

80 mm dia GI tubing

Refixing old steel tubing and connections in new or old position (walls, ceiling. Floor, trenches etc.) including cleaning or rerunning the old screw thread as required and providing required connecting materials complete all as specified and as directed for the following sizes.

15 mm dia GI tubing

20 mm dia GI tubing

25 mm dia GI tubing

40 mm dia GI tubing

50 mm dia GI tubing

80 mm dia GI tubing

Supply and laying GI tubing medium grade ISI marked with all fittings, laid in trenches complete all as specified and as directed for the following sizes :- Make:TATA / JINDAL / PRAKASH. Note : Necessary Excavation and earth work will be measured and paid separately.

15 mm dia GI tubing

20 mm dia GI tubing

25 mm dia GI tubing

40 mm dia GI tubing

50 mm dia GI tubing

80 mm dia GI tubing

Supply and laying GI tubing medium grade ISI marked with all fittings fixed complete to walls and ceiling or laid in floors incl. making good of disturbed surfaces complete all as specified and as directed for the following sizes :- Make:TATA / JINDAL / PRAKASH.

15 mm dia GI tubing

20 mm dia GI tubing

25 mm dia GI tubing

M&L for GI pipe medium grade 100 mm dia with all connected fittings complete such as bend, elbow, socket, flange etc for suction pipe including taking down existging corroded suction pipes complete all as specified and as directed. Make:TATA/JINDAL/PRAKASH.

Supply & fix in repairs brass ball Vales, screwed female ends to IS 554 / BS 21 / ISO 7, full bore, two piece design, quarter turn, lever operated, provided with forged brass hard chrome plated ball, premium quality PTFE gland packing and seating on iron pipe line and fixed properly of following sizes including taking out unserviceable gun metal gate / ball valve:- Make: Zoloto / Leader / Tiger / Cresent.

15 mm dia bore

20 mm dia bore

25 mm dia bore

40 mm dia bore

50 mm dia bore

M & L for Fabrication of header made out of MS pipe of 450 mm dia, 10 mm thick, 08 Mtr long and welded on both sides with 12 mm thick MS Plate including provision for connecting the 02 No of inlet recieved from centrifugal pump set and 03 Nos of inlets recieved from over head reservoir (of capacity 01 Lakh Gallons) and 01 No spare inlet for future use, totally providing 06 No flanges (including 01 No Raised Face Blind Flange) on hadder and further connecting with 05 Nos DI/CI/GI/MS flanged pipes and sluice valves of size 80 mm to 250 mm dia with rubber gasket / nut bolts. The outlet of hadder shall be provided with provision of 15 Nos flanges (including 03 Nos spare Raised Face Blind flanges) for further connecting with DI/CI/GI/MS pipes of length not less then 0.5 Mtr including connecting all 12 Nos flenged sluice valve of size 80 mm to 300 mm dia complete and further making connection with raising / distribution mains of DI/CI/GI/MS pipe line with provision of flanges in necessary quantity for connecting the existing sluice valve of size 80 mm to 300 mm dia with main header. Also making provision for connecting the 2 Nos of air release valves on header. The header should be embeded on PCC blocks complete all as specified and as directed by Engr-in-charge. Note: (i) Cost of sluice valves/air release valves / NRV / pipes/PCC will be measured and paid separately under relevant item. (ii) Header to be supplied with suitable lifting hook on contractors own arrangement. iii) The header having 06 inlet and 15 outlet of 80 mm to 300 mm dia with flange including 04 No Raised Face Blind Flange. iv) The weighing of header in front of Engineer in Charge is on contractors own arrangement. v) Necessary approval of drawing of Header to be taken from Garrison Engineer before placing order to the company.

Taking up cast iron water mains (including all fittings), with spigot and socketed ends and lead joints including burning out lead joints and recovering lead complete all as specified and as directed for the following sizes of pipes :- Note : Necessary Excavation and earth work will be measured and paid separately.

80 mm dia bore cast iron pipe

100 mm dia bore cast iron pipe

150 mm dia bore cast iron pipe

200 mm dia bore cast iron pipe

Relaying/refixing of old CI/DI/MS/GI Pipe and connection in new or old position including fittings with old/new bends, elbows, socket, nipple, tapers, and reducers etc as per site requirement and laid in trenches and necessary cutting / welding / any type of jointing etc and testing for leakages complete all as specified and directed for the following sizes:-

80 mm dia bore pipe

100 mm dia bore pipe

150 mm dia bore pipe

200 mm dia bore pipe

Notes for item No- 12.01 to 12.04 :- (a) Excavation and Earth work shall be measured and paid separately.

S&F ductile iron pressure pipes, class K9, centrifugally cast with spigot and socket ends as per following conforming to IS 8329/2000 with cement mortar lining inside the pipes with outside zinc coating suitable for push-on-joint (rubber gasket D jointing) in any length as required at site confirming to IS 8329/2000 and all jointing materials and making good for disturbed surfaces of roads, path ways etc while laying the pipe line at site, site clearance for the route of pipe line, welding, cutting the existing CI/DI/MS/GI pipe line of any size up to 400 mm dia for inserting branch connections etc complete all as specified and directed for the following sizes:- Notes:- (a) Quoted rates are inclusive of Lead Joints / D-Joints as required during laying of pipes. (b) Contractor is responsible for repair/replacement of any damages to the existing structures, Under Ground HT/LT/OFC Cables etc during the course of execution. (c) Excavation and Earth work shall be measured and paid separately. (d) Special required shall be measured separately.

80 mm dia bore pipe

100 mm dia bore pipe

150 mm dia bore pipe

200 mm dia bore pipe

Notes for item No 13.01 to 13.04 :- (a) Excavation and Earth work shall be measured and paid separately.

Cutting existing CI /DI/MS/GI pipe line for insertion of new tees, collars for branch connections complete all as specified and directed for the following sizes:- Note: CI /DI specials, Joints and Earth work shall be measured and paid sperately under relevant items of this schedule.

80 mm Dia

100 mm Dia

150 mm Dia

200 mm Dia

Supply and fix, in repairs, CI/DI/MS/GI specials fitting for spigot socketed pipes such as bends (any type, radius and angle) Tapers any type, (straight, bend, increasing, decreasing or double sockets etc.) tee pieces, single branch, Y junction, double branch cross (all sockets or socket and spigot or all flanged or flanged and other socket or spigot) collars, caps and plugs etc .as per IS complete all as specified and as directed upto 150 mm dia.

Supply and fix, in repairs, CI/DI/MS/GI specials fitting for spigot socketed pipes such as bends (any type, radius and angle) Tapers any type, (straight, bend, increasing, decreasing or double sockets etc.) tee pieces, single branch, Y junction, double branch cross (all sockets or socket and spigot or all flanged or flanged and other socket or spigot) collars, caps and plugs etc .as per IS complete all as specified and as directed above 150 mm and upto 200 mm dia.

Supply and fix, in repairs, CI/DI/MS/GI specials fitting for flanged pipes such as bends (any type, radius and angle) Tapers any type, (straight, bend, increasing, decreasing or double sockets etc.) tee pieces, single branch, Y junction, double branch cross (all sockets or socket and spigot or all flanged or flanged and other socket or spigot) collars, caps and plugs etc .as per IS complete all as specified and as directed upto 150 mm dia.

Supply and fix, in repairs,CI/DI/MS/GI specials fitting for flanged pipes such as bends (any type, radius and angle) Tapers any type, (straight, bend, increasing, decreasing or double sockets etc.) tee pieces, single branch, Y junction, double branch cross (all sockets or socket and spigot or all flanged or flanged and other socket or spigot) collars, caps and plugs etc .as per IS complete all as specified and as directed above 150 mm and upto 200 mm dia.

Cutting of CI/DI/MS/GI pipes in position for insertion of new Tees, branches, Tail pieces and sluice valve etc. complete all as specified and as directed.

80 mm dia bore

100 mm dia bore

150 mm dia bore

200 mm dia bore

M&L for run lead joint for CI pipe/DI pipe including spun yarn etc for spigot and socket pipes and fittiings complete all as specified and directed for the following bore of pipes:-

80 mm Dia

100 mm Dia

150 mm Dia

200 mm Dia

S&F in repairs cast iron detachable (D-Joints) heavy duty, ISI marked, split type with long collar, suitable rubber rings, bolts, nuts and washers etc suitable for MS/CI/DI/GI pipes of following sizes all as specified and as directed:- Notes:- (a) Excavation and Earth work shall be measured and paid separately. (b) CI/GI/MS pipe for insertion will be measured and paid separately under relevant item of this schedule. (c) Quoted rate is deemed to be inclusive of necessary T&P for cutting the pipe line, Pump sets for De-watering, JCB for Excavation (if required) etc and no extra payment shall be admissible on this account.

80 mm Dia

100 mm Dia

150 mm Dia

200 mm Dia

Taking down unserviceable Sluice valve of following size :-

80 mm dia bore

100 mm dia bore

150 mm dia bore

200 mm dia bore

S&F, connecting and testing of Cast Iron Rising Spindle Sluice Valves Flanged end As Per IS : 14846 Body, Cover- CI IS : 210, Gr. FG260 Body Ring- Bronze IS: 318 Gr. LTB2 Door Face- Natural Rubber, Hinge Pin-SS ASTM A276 Type 410 Fasteners-CS IS:1367, CL-6/4.0 Gasket- Natural Rubber, Flange Drilling- IS 1538, Table 4 & 6, both ends flanged with clamps and check nuts, operating wheel etc, class PN 1.6, Make - Kirloskar, including jointing materials connecting and testing complete all as specified and directed.

80 mm dia bore

100 mm dia bore

150 mm dia bore

200 mm dia bore

S&F, connecting and testing of Cast Iron Swing type Non Return valve flanged end As Per IS : 5312 Body, Cover- CI IS : 210, Gr. FG 260, Body Ring - Bronze IS : 318 Gr LTB2 Door Face- Natural Rubber, Hinge Pin-SS ASTM A276 Type 410 Fasteners-CS IS:1367, CL-6/4.0 Gasket- Natural Rubber, Flange Drilling- IS 1538, Table 4 & 6, PN-1.6 both ends flanged etc including jointing materials of following sizes including taking down unserviceable Non Return valve complete all as specified and directed.

50 mm Dia

80 mm Dia

100 mm Dia

150 mm Dia

200 mm Dia

S&F, connecting and testing of Cast Iron double orifice kinetic Air Valve of size 100 mm dia, ISI Marked IS : 14845 type DK in PN 1.6 flanged end K545 with all standard accessories and tested including replacement of nuts, bolts, washers, gaskets, packings etc including taking down unserviceable Air Valve complete all as per specified and directed.

M&L for Construction of new PCC solid Masonry valve chamber of size 750 X 750 X 750 mm (Internal dimensions) with PCC foundation 1:4:8 type D2 using 40 mm graded stone aggregate 150 mm thick 150 mm wide off sets around over 100 mm thick hard core , 200 mm thick PCC solid block walls built in CM 1:6, 50 mm thick PCC 1:2:4 Type B1 coping finished even and smooth, rendering 10 mm thick in cement mortar (1:6) finished even and smooth, with out using extra cement internally including top of floor including excavation earth work in hard/Dense soil 3 mm thick MS sheet cover fixed on 40 mm X 40 mm X 6 mm thick angle iron frame with hold fasts embedded in PCC coaping with locking arrangement, mild steel handle and painting to steel surfaces with two coats of synthetic enamel paint over one coat of primer including disposal of surplus soil to a distance not exceeding 50 m etc complete all as specified and directed.

Dismantling existing old U/S broken/damage valve pit from the position and M&L for brick masonary valve pit 600x600x600 mm for pipe with necessary excavation and earth work, PCC 1:3:6 in foundation brick work in CM 1:6 plastering 15 mm thick rendering in CM 1:4 internally, 5 mm thick MS plate cover incl MS angle iron frame including preparation of new steel & iron surface & applying two coat of synthetic enamel paint over a coat of red oxide primer and including locking arrangement with lock & key complete all as specified and as directed .

Dismantling existing old U/S broken/damage valve pit from the position and M&L for brick masonary valve pit 900x900x900 mm for pipe with necessary excavation and earth work, PCC 1:3:6 in foundation brick work in Cm 1:6 plastering 15 mm thick rendering in CM 1:4 internally, 5 mm thick MS plate cover incl MS angle iron frame including preparation of new steel & iron surface & applying two coat of synthetic enamel paint over a coat of red oxide primer and including locking arrangement with lock & key complete all as specified and as directed.

Construction of valve chamber of size 1050 x 1050 mm (Internal size) 1050 mm deep with 200mm thick PCC block masonary walls built in CM 1:6 over 100 mm thick foundation concrete in PCC 1:4:8 type D2, (Using 40 mm graded coarse aggregate) with 100 mm off set, 15mm thick complete internal plaster and external plaster up to a depth of 15 cm below GL in CM (1:6), 3 mm thick MS sheet cover, double door welded to 50 mm x 50 mm x 6mm MS angle frame fixed with hold fasts in PCC 1:2:4 type B1 coping 50 mm thick in PCC (1:2:4) type B-1, 20mm x 6mm flat iron hinges with locking arrangement including lock sixty five mm, brassd and keys(Godrej/Shell), MS handles and applying two coats of synthetic eanmel paint over a coat of red oxide zinc chrome primer to all steel surfaces including excavation & earth work in any type of soil /soft disintegrated rock and disposal of surplus soil to a distance not exceeding 50 Mtr complete all as specified and directed

M & L for RCC route indicator for CI pipe lines made using of size 90X20X10 Cm PCC 1:1½:3 type A-1 and 20 mm graded stone aggregate complete all as per drawing and engraved font size not less than 3 Cm and painting of letters with red enamelled paint and the painting of PCC block with weather proof paint of approved colour and quality complete all as specified & dirceted & shown on drawing.

M&L for seven stage cleaning and sterilization inside the existing RCC Semi undergtround sump through bacteriological treatment by using TERBAC G10, as recommended by Engineer- in-Charge and ULTRA VIOLET RAY at various Pump Houses including necessary arrangement (as per site requirement). Seven stage are as under follows:- (a) First stage is to drain out the water by using high capacity pump of dewatering system. (b) Second stage is cleaning all the algae formation inside the tank by using TERBAC G10 a laboratory tested branded chemical of the company and scrubbing the walls of the tanks, as recommended by Engineer-in-Charge. (c) Third stage is fresh water clening by high speed jet pump with pressure 5 PSI to remove all scaling, algae and other formed particles on internal surfaces of the tank completely. (d) Fourth stage and first bacteria screening is Sterilization by using TERBAC-G5 a Laboratory certified branded halogen compound, test certificate of TERBAC-G5 from government laboratory mentioning suitability for sterilization should be submitted to the Engneer - in - Charge before using for sterilization. (e) Fifth stage is cleaning the floor of the water tank by heavy duty industrial vacuum cleaner and sludge sucker having mimimum 1200 W with suitable heavy duty rugged motor to free any foreign and loose particles of any nature. (f) Sixth stage is the second bacteria screening and sterilizing meathod by using ultra voilet ray ejector covering 360 degree with in the tank and kills all suspended bacteria. (g) Seventh stage of cleaning and third bacteria screening is to sterilize the floor of the water tank by using laboratory certified branded strong oxidizing agent TERBAC-G65. Test certificate of TERBAC-G65 from Government laboratory mentioning suitability for sterilization should be submitted to the Engneer - in - Charge before using for Sterilization. Notes :- (a) Complete work shall be carried out through firm, specialist in subject job i.e M/s Rays Cleantech, 8 M.B.Road, Kolkata-700051 only. The capicity of under ground sumps are as follows:-

10000 Gallons (10 thousand Gln)

50000 Gallons (50 thousand Gln)

M & L for arresting leakages in semi underground Sump with the following steps :- (i) Identify the leakages /seepage portion of the semi underground sump and Cutting the contruction joint in "V" shaped grooves. (ii) Drilling Hole in the Honeycomb portions. (iii) Patching the entire V shaped grooves with cement,admix and quick setting compound. (iv) Fixing of PVC nozzle for grouting with quick setting compound admix with cement. (v) Next stage of Grouting is to nject the cement mixture with intraplast EP through the nozzle by high pressure injection Pump. All these operations are made from inside/outside of the Reservoir. (vi) Water leakage testing of the tanks will be done by filling the tanks with water and next stage of expoxy coating will be carried out for sucessful prevention of the water leakage. (vii) Now the water to be made empty and a water proofing coating to be made in 2 coats in the inner walls of the tanks with TANK COAT Epoxy Coating (Portable Water grade). Note : (a) Complete work shall be carried out through firm, specialist in subject job i.e M/s Rays Cleantech, 8 M.B.Road, Kolkata-700051 or as approved by GE (b) Rates are inclusive of labour hutment, charges/ arrangement for excavation, returning filling and removing of surplus soil and construction material i.e sand, gravels, cement bags etc, scaffolding materials i.e bamboo or balli and ropes etc. During excavation any damages to the existing infrastructure (i.e pipe, UG cable, wall etc) to be repaired/replaced by the contractor at his own cost/arrangement. (c) After the total grouting and coating procedure M/s Rays Cleantech shall provide hunderd percent warrenty certificate for water proofing of the reservior/sump for next five years to Engr - in- Charge. The entire procidure will be done in four steps as per below;-

Supply and fix nozzles including making of grooves for fixing of nozzles and patching.

M&L for grouting through nozzles as specified above and as directed.

Patch work over nozzle grouting area

Apply two coats of epoxy coating as mentioned above and as directed.

M&L MS ladder for replacement of existing unserviceable ladder at OHT and underground sump as per existing specification with Cross-arms, Bracings, Supports, Clamps and Back Plates fabricated from Structural Steel Sections including Nuts, Bolts, Washer, welding, bending cold or hot, drilling holes for Bolts, in any shape or size as indicated or directed and inclusive of One Coat of Aluminium Primer, One Under Coat and One Finishing Coat of Aluminium Paint, for complete all as specified and as directed.

M&L for painting of raising main, distribution, wash out, pumping /delivery and overflow pipes on underground sump with suitable colour coding of pipe dia 20mm to 200mm by using synthetic enamelled paint first grade after scrapping /cleaning

M&L for replacement of existing water level indicator in UG Sump of any size , capacity and height by Float and board types levelGuage using rope, ball valve, pully, necessary support , PCC ,display board ,indicator/pointer , necessary painting and numbering complete all as required for proper functioning of level indicator complete all as specified and directed.

Supply and fixing in replacement for digital type water level indicator for 10 level , operating voltage 230 volts , single connection from sensor to display unit by using cable of size 0.5 sqmm 10 core with protection GI pipe (light grade ) 15 mm dia from over head tank of 20 mtr height and display unit shall be fixed at pump house all directed at site . make :- Aquabarrel or Equivalent.

M&L for painting of water distribution header including all control valves and all exposed pipe of any size by using synthetic enamelled spray painting after scrapping /cleaning complete all as directed.

Cutting existing steel tubing for alternations or additions or refixing old serviceable steel tubing of 50/40 mm size

Cutting existing steel tubing for alternations or additions or refixing old serviceable steel tubing of 25 mm size

Drilling and taping GI water mains (in position) for branch connection of the following sizes 20 mm including fitting, welding etc.

M&L Gun metal gate valve ISI mark (heavy duty) with iron wheel, hand secrewed both end for iron pipe all as specified and directed. Make - Kiran/Neta/NMC of the 50 mm size including taking out old valve and remove as directed :-

M&L Gun metal gate valve ISI mark (heavy duty) with iron wheel, hand secrewed both end for iron pipe all as specified and directed. Make - Kiran/Neta/NMC of the 40 mm size including taking out old valve and remove as directed :-

M&L Gun metal gate valve ISI mark (heavy duty) with iron wheel, hand secrewed both end for iron pipe all as specified and directed. Make - Kiran/Neta/NMC of the 25 mm size including taking out old valve and remove as directed :-

M&L Gun metal gate valve ISI mark (heavy duty) with iron wheel, hand secrewed both end for iron pipe all as specified and directed. Make - Kiran/Neta/NMC of the 20 mm size including taking out old valve and remove as directed :-

M&L Gun metal gate valve ISI mark (heavy duty) with iron wheel, hand secrewed both end for iron pipe all as specified and directed. Make - Kiran/Neta/NMC of the 15 mm size including taking out old valve and remove as directed :-

M&L for clamp connection after boring CI water mains with clamp made out of MS flat iron 40x 6 mm with GI socket 20 to 25 mm welded including rubber packing & nuts bolt for CI pipe of following size including excavation and return filling etc complete all as specified & directed

80/100 mm bore pipe

150 mm bore pipe

200 mm bore pipe

Supply and fix, Cast iron pipes with spigot and socket ends centrifugally cast. Class LA, in any length, laid in trenches complete all as specified and as directed for the following sizes:- Make : Lanco / Jindal / TATA/ Electro Steel Castings.

80 mm dia bore pipe

100 mm dia bore pipe

150 mm dia bore pipe

200 mm dia bore pipe

Ms V.Prakash

M Shyam Sunder

Srinivash Engineers