REPAIR REPLACEMENT AND MAINTENANCE TO STP S AND CONNECTED PIPELINE AT NAVAL BASE AREA UNDER AGE EM NO II OF GE UTILITY II VISAKHAPATNAM

Amount

Material and labour for cleaning of RCC equalisation tank of approx. size 15 m x 6.0 m x 5.74 m at Naval Park STP 500 KLD by bailing out the accumulated raw water at the bottom and removing the complete silt/sludge/dirt from the tank and depositing away exc 1.5 KM and n.exc 5.0 KM from site as directed, scrapping the tank inner walls and bottom with wire brush and cleaning the tank inner walls and bottom with the bleaching powder slurry completely including applying one coat of cement wash to entire tank externally complete all as directed by Engineer-in-Charge. Note: The rate deemed to be inclusive of T&P and transportation required for disposal of sludge/dirt away from the site.

All as per SL item No.1 above but RCC treated water tank/Filter feed tank of approx. size of 7.5mX 3.5mX 3 mtr in size at STP Naval park.

All as per SL item No.1 above but traeted water RCC open air under ground sump of capacity 2 lakh ltrs of approx. size of 7.5mX 3.5mX 3 mtr with 3 mtr hieight fountain at STP Naval park.

All as per SL item No.1 above but for treated over head RCC tank of capacity 0.5 Lakh ltr of approx. size of 3.5mX 2.5mX 1 mtr at STP Naval park.

Material and labour for choke clearing of submersible pump at Naval park STP 500 KLD capacity by bailing out the sewage pump house /STP including dewatering the sewage sump to bottom level by using diesel driven mobile pump set type /submersible type , lifting submersible pump with delivery main from bracket at bottom of sewage sump of depth 3 mtr to 5 mtr by using pully & chain block up to floor level, removing all debris from pump casing, removing , defective D clamps etc inspecting impeller, bearing by passing under current relay, testing the pump ,lowering the pump with delivery main through guide wire rope by chain block, setting the pump to bottom bracket, testing the pump complete all as directed. Note :- (a) The job to be completed with in 02 hours from choking of pump. (b) The quoted rate is deemed to be include the tool & plants required for lifting inspection, lowering etc. (c) All safety measures including lighting, safety shoes, safety glows to be provided by contractor.

M&L for taking out existing pump set / air blower of 15 to 20 HP capacity for servicing by disconnecting motor and blower/ pump set from pipe line and removing of all parts like bearing, bushes, impeller, shaft etc., cleaning all surfaces and scales/ sludge/ dirt/ formed inside/out side pump set/blower etc, lubricating/ greasing at proper places and re-fixing in position with all serviceable parts including painting with one coat of anti corrosive paint over red oxide primer and writing MES /SM No and testing and commissioning complete all as directed by Engineer-in-charge. Note: spares shall be measured and paid separately under relevant items of BOQ.

Supply only ball bearings suitable for 7.5 to 12.5 HP capacity pump sets/air blower

M & L for Air diffusers of SSI 's AFT -N3750 (91 X750)mm -E fine bubble EPDM membrane tube diffuser c/w saddles for reactor -1complete all as directed by Engineer-in-charge.

M & L for Air diffusers of SSI 's AFT -N3750 (91 X750)mm -E fine bubble EPDM membrane tube diffuser c/w saddles for reactor -2 complete all as directed by Engineer-in-charge.

Supply and installation of UPVC piping along with fitting for diffuser with NRV and valves for reactor 1as per specified and directed by Engr -in- charge.

Supply and installation of UPVC piping along with fitting for diffuser with NRV and valves for reactor 2 as per specified and directed by Engr -in- charge.

Replacement of FMR media for reactor -1 as per specified and directed by Engr -in- charge.

Replacement of FMR media for reactor -2 as per specified and directed by Engr -in- charge.

Replacement of Tube settler frame and media as per specified and directed by Engr -in- charge.

M & L for sludge removal, Acid cleaning and Epoxy painting of tube settler tank as per specified and directed by Engr -in- charge.

M &L sludge removal and acid cleaning of Raw sewage tank as per specified and directed by Engr -in- charge.

M &L sludge removal and acid cleaning of sludge sump as per specified and directed by Engr -in- charge.

M &L sludge removal and acid cleaning of Filter Feed Tank as per specified and directed by Engr -in- charge.

M &L sludge removal and acid cleaning of reactor -1 as per specified and directed by Engr -in- charge.

M &L sludge removal and acid cleaning of reactor -2 as per specified and directed by Engr -in- charge.

Repair , acid cleaning , internal external Epoxy painting of Active carbon Filter as per specified and directed by Engr -in- charge.

Supply chemical and MLSS and restoration FMR plant all as specified and directed by Engineer-in-Charge.

M & L for carrying out chemical analysis (BOD/COD) test of treated sewer water of STP at Naval park/Nousena baugh and Satvahana from Govt authorised laboratory all as per CPCB Norms complete all as directed by Engineer-in-charge. Note : The rate quoted is deemed to be inclusive of testing and collection of water samples in sealed PVC container at STPs.

Excavation in trenches not exc 1.5 mtr wide and n exc 1.5 mtr in depth and getting out in hard/dense soil for laying cables, erection of poles complete all as specified and directed

Returning, filling in including spreading, levelling, watering and well ramming in layers not exc 25 cm in hard/dense soil complete all as specified and directed.

Removing surplus excavated soil not exc 50 mtr and depositing where directed at a level n-exc 1.5 mtr above the starting point complete all as specified and directed.

Supplying only alam (white colour granual) for cleaning of treated water.Complete all as specified and as directed

M & L for cleaning of vegetation by cutting and clearing away all grass vegetation, wild growth, sapling, shrubs, brushwoods, under growth roots, cutting of bushes, tree trunk of girth not execeeding 30 cm, cutting of trunk, portion protuding over ground, filling holes and leveling of ground and removing unserviceable materials to a distance n.exe 50m, compelte all as speicified

Supply & lay in repair MS ERW pipe heavy grade for inserting in position, making leak proof joints including necessary bends and testing and painting with two coats of synthetic enamel paint over a coat of red oxide primer complete all as specified and directed.for following size

(a) 80 mm dia

(b)100 mm dia

(c)150 mm dia

(d) 200 mm dia

(e) 300 mm dia

Supply, fix in repair butterfly valves incl cutting, welding if any complete and painting with two coats of synthetic enamel paint over a coat of red oxide primer complete all as directed for following dia

a) 80 mm bore

b) 100 mm bore

c) 150 mm bore

d) 200 mm bore

M&L for painting of pumpsets with a coat of approved synthetic enamel paint including inlet & out let pipe lines complete including preparation of old painted surface and writting MES number all as specified and directed for following capacity

(a) 05 to 10 HP

(b) 10 HP to 15 HP

S&F HDPE pipe rating 6 kgf/cm2 fixed complete to walls/ ceiling or in floors includingtaking down unserviceable HDPE pipe

(a) 50 mm bore

(b) 40 mm bore

(c) 32 mm bore

(d) 25 mm bore

(e) 20 mm dia

(f ) 15 mm Dia

M & L Preparation of old painted steel surfaces of any description, over 10 cm width or girth, not otherwise described and applying one coat of synthetic enamel paint after priming with red oxide, Zinc chrome. complete all as specified and as directed.

Note : The rate quoted is inclusive of the following :-

(a) T & P such as suction brush, Algae Brush, wall brush, Hose pipe, deep leaf net bag and other necessary equipments for under water cleaning etc. (b) Labour Charges Minium 2 person per day for Suction sweeping and 1 person per day . (c) Any other Misc Charges required for performing the job work.

M&L for rewinding sewage submersible motor PVC insulated copper conductor of same gauge and same number of turns as that of existing including tieing the winding and connecting the coils and bringing the connections as that of existing complete all as specified for submersible motor of 12.5 HP capacity

Opening the submersible pump set of 12.5 HP for inspection, repairs and reassembling the pump and motor as per the original assembly after repairs / replacing the worn out unserviceable parts with new parts as ordered, including cleaning replacing the minor items like packing bolts, nuts washers and MS clamps etc and applying one coat of approved hammertene spray paint on exposed steel surface, making the pump and motor fully serviceable including lathework etc and testing the same for satisfactory operation on its full load all as specified and directed by Engineer - in - Charge. Note: The rate is inclusive of spares required for replacement such as Thurst bearing set, Stage casing, Impeller etc..

M & L for dismantling of motor of following capacities pumpset/Air blower from installed position after disconnecting the coupling and electric connections and transporting the motor to the work shop, strip opening of the motor complete incl dismanlting stator, rotor assembly and cleaning the complete assemblies by taking out perished glass sleeve of connecting leads from common termination to terminal block,and washing with carbon tetra chloride, decarbonising and cleaning the rotor with CTC solution. Replacing the glass sleeve of connecting leads from common termination to terminal block, binding the loose coils with binding cloth, varnishing the coils complete and applyng bectol on the excitor coils, stator coils and heating complete, reassembling the unit and testing with megger for insualtion value and re-assembling, aligning with pump, re-inserting shims where necessary, refixing with coupling, tightening with torque wrench to required level, re-connecting the electric cable etc and check for drawing current testing, commissioning etc all as directed by Engineer-in-Charge.

10 HP to 25 HP

5 HP to 7.5 HP

M & L for dismantling the pump/Air blower of following capacity, checking the worn out parts like impeller, shaft, stuffing box, shaft sleeve using Micrometer and transporting to workshop for repairs, check for condition of bearings, removing scales from impeller and pump housing, building the worn out metal of transmission shaft to required level, machining to the required size on lathe machine, grinding and finishing to match the sleeve, and fixing into the housing, re-assembling, transport back to the installation, installing in position, check for alignment with dial gauge, inserting shims where necessary, refixing with coupling, tightening with torque wrench to required level, re-connecting the flanged pipe connections of suction/ delivery including replacement of rubber insertion etc complete, all as directed by Engineer-in-Charge.

10 HP to 25 HP

5 HP to 7.5 HP

M & L for repairs to pump shaft of any make with necessary metal filling and machining suitable for the following capacity of pump sets

10 HP to 25 HP

5 HP to 7.5 HP

M & L for compressor Oil of Air blower

M & L writing letters or figures (Block, Roman, Italic or Indian) letters 5 cm long n.exc 30 cm high with skilled labour

M & L writing Index hands (natural size) or arrow marks showing direction of water flow on CI/DI/MS pipes of any size up to 40 cm long all as directed at site.

Supply and replace notice board of overall size shall be 1200mm long, 75mm deep and 600mm high, 25mmx75mm particle board frame of commercial face with 6mm thick MDF edging alround shall be provided, 19mm thick soft wood board shall be fixed in side the frame over which best quality green baize cloth shall be fixed, Aluminum flat of 63mmx 3.25mm shall be provided alround at the back of the board, on front side 22mmx10mm aluminum channel shall be provided in side of particle board frame to house 4mm thick glass shutter (sliding type with necessary fittings) complete all as specified and directed by Engr-in-Charge.

Supply and fix Display board made of 3.5 mm thick Aluminium Composite panel sheet cut to a required shape and size (Square/ rectangular) with printed schematic / any matters/ description in computer aided adhesive applied PVC flex and pasted on the one side of sheet and fixed to wall/ metal sheet with necessary fixing arrangements complete all as directed by Engineer-in-charge.

supply and fixing in repairs water level indicator, 36" dia as per IS and including numbering with radium stickering heavy duty float, counter weight heavy duty driving gear nylon wire fitted in all in GI housing, cutting the RCC slab and making good the slab, painting the exposed surface with two coats of synthetic enamel over a coat of red oxide primer complete all as specified and directed by Engr-in-Charge.

Dismantling the old unservicable installation "Glow sign" board and Design, fabricate, supply & install Glow sign board of size 1.80 x 1.00 x 0.20 metre of board made up of Plain steel sheet of 1.0 mm thick with M S medium grade Square tube supports of size 25mm with Bakelite flex (Transparent) type white and blue in colour by computerised stenciled letters in various clean white capital letters on blue/ other colour as directed in English/ Hindi with required numbers and Flourecent tube lights 4x40 watts (bajaj/Philips) fitting complete including necessary fitment, electrical wiring, MS angles/ Steel round bars, GI sheets, pipes clamps bolts & nuts all as directed by Engineer-in-charge.

S&F GI tubing, medium grade with all fittings, complete fixed to wall and ceilings or laid in floors/trenches for the following sizes complete including taking up existing unserviceable pipe all as specified and directed by Engineer-in-Charge.

20mm dia bore

25mm dia bore

40mm dia bore

50mm dia bore

65 mm dia bore

100mm dia bore

Supply and replace gun metal gate valve, with iron wheel head, screwed both ends, Class-II conforming to IS-9338 and fixed complete of the following sizes :-

20mm dia bore

25mm dia bore

40mm dia bore

50mm dia bore

80mm dia bore

Supply and replace 80 mm dia CI foot valve complete all as directed by Engr-in-charge.

Supply and replace 150 mm dia CI foot valve complete all as directed by Engr-in-charge.

Supply and replace 200 mm dia CI foot valve complete all as directed by Engr-in-charge.

M/s.DSRK CONSTRUCTIONS

LAKSHMI SAI CONSTRUCTIONS