REPAIR REPLACEMENT OF WATER DISTRIBUTION LINE INCL SLUICE VALVE NRV ARV AND ATTENDING EMERGENCY BREAKDOWN TO WATER DISTRIBUTION NETWORK FROM MINDI TO INS EKSILA AND INS EKSILA TO INHS KALYANI AND NSB UNDER AGE E/M NO.II OF GE (U-II) VISAKHAPATNAM

Amount

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

80 mm dia

100 mm dia

150 mm dia

200 mm dia

250 mm dia

300 mm Dia

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

90 HP to 125 HP

15 HP to 20 HP

Preparation to old external surfaces of Pipes/Panels indoor/outdoor type for painting by scrapping down old rusted paint by steel brush broomming rubbing and applying one coat of synthetic enamel paint as approved colour by Engineering-in-charge.

Testing of potable /fresh water to achieve chlorination level by keeping concentrated efforts as per standard water quality specifications of maintaining PPM, PH, TDS levels, by checking time to time with standard testing equipments/lab test items if any daily before pumping of water to users from sump/OHTs to building OH tanks through raising mains etc. by adding chlorination granuals, chlorine gas etc. as required for disinfection of water as per standard at site as under :-

(a) ppm at sump level to pumping water to building OH tank - 2ppm, (b) pH value - 6.5 to 8.5, TDS- 300ppm (c) Ensuring water is to be free from E.coli and thermotolerant coliform bacteria and it shall not be detectable in any 100ml of sample water.

Notes :- The item rate is inclusive of following :-

(a) The contrator or his rep is responsible for maintaining quality of drinking water as specified above and to adopt latest standard of water treatment for providing specified potable water. (b) Contractor or his rep has to attend daily at all pump houses once in a day to check all the water parameters and sign in the register being maintained with pump house staff. (c) Register should be maintained daily and daily record of the same should be endorsed from users/MES rep at pump house, concerned Engineer-in-Charge as well as concerned medical team of respective unit daily. (d) Lab test shall be carried out once in a month from locally available Govt approved lab for (i) PPM, (ii) TDS, (iii) pH value and E-Coil or thermotolerent Coliform bacteria. test report be rendered and a record of the same to be submitted to department once in a month or whenever required or directed by the users and department depend upon the situation/quality of water.

(e) The rate quoted is deemed to be inclusive of adding required chemicals like soda ash etc., to maintain pH value and TDS as and when required.

(f) Required quantity of chlorine gas/ chlorine granuals/ bleaching powder required to be used at pump houses regularly and superchlorination to be done and the same shall be measured and paid seperately under relevant items of schedule. The amount/quantity of mixing chemicals, gas etc.,would be vary as per the quality of receiving water from time to time to bring the required ppm once checked before pumping the water from sump to OHT of user building. The necessary mixing up of granuals/bleaching powder for maintaining standard water and for superchlorination the existing staff/ manpower at pump houses shall be utilized if necessary.

The above specified job shall be carried out at each pump house as under :-

(a) Nausenabaugh Dolphin pump house (01 Places), (b) EKSILA PH, INS EKSILA, (c) NIvedita PH Kalyani (d) Dolphin Hill UG Sump TS pump House (e) Middle Pump House Dolphin Hill - 05 Nos.

Supply & Lay in replacement of Ductile Iron pipe class K 9 ISI marked spigot socket end centrifugally lined Jointing with flexible rubber gaskets push on type joints with cement mortar including DI fitting complete in trenches of size 250 mm dia

Supply and lay in replacement in floors/ on roof /on wall / trenches GI water tubing galvanised medium grade with all fittings of following sizes.

20 mm bore

25 mm bore

40 mm bore

50 mm bore

Supply and fix gun metal gate valve with iron wheel head screwed both ends for iron pipe of following size including dismantling old one.

20 mm dia bore

25 mm dia bore

40 mm dia bore

50 mm dia bore

M&L replacement of unserviceable sluice valve, spindle, and check nut by un screwing nut and bolts, gasket stuffing box and taking upper portion of sluice valve taking out u/s spindle check nut . Cutting turning, polishing and preparing new SS spindle and check nut from the solid single SS piece of same length , dia of u/s spindle and check nut fixing the new spindle and check nut re assembling sluice valve replacement of u/s gasket nut and bolts and testing for the following bore sizes of sluice valve.

Taking out sluice valve stuffing box and re-packing stuffing box of sluice valve including taking apart & assembling & refixing it into its original position & replacement of rubber gasket and nut & bolts for the following sizes :-

80 mm dia

100 mm dia

150 mm dia

200 mm bore

NOTE- Rubber gasket, nuts, bolts and washers will be measured and paid separately

Supply only rubber gasket 3 mm thick

Supply only black bolt with hexagon head and nuts round neck with washer 3 mm thick

Supply and fix in repair CI sluice valves , of following Sizes , PN 1.6, conforming to IS -14846 Flanged end complete with iron wheel head and stainless steel spindle including flanged joints, replacement of perished nuts, bolts washers and rubber gasket etc. complete all as specified and directed.

250 mm dia

150 mm dia

100 mm dia

80 mm dia

Supply and fix in repair MOC WCB, Sluice valves , PN 1.6, Class 300 conforming to IS -14846 Flanged end complete with iron wheel head and stainless steel spindle including flanged joints, replacement of perished nuts, bolts washers and rubber gasket etc. complete all as specified and directed.

M&L for jointing flanged pipe and fittings including provn of rubber or fibre board gaskets and washers required for jointing including taking out fibre gaskets and nuts & bolts for the following sizes:-

80 mm Dia

100 mm dia

150mm bore

200mm bore

250mm bore

M&L cutting the road hard standing for laying of pipeline including filling& making good surface with PCC 1:3:6 C-1 Type using 20 mm graded stone aggregate & removing the to distance n.exe 50mtr all as specified.

M&L for stone masonry for walling of random rubble, uncaused, well bonded, built in cement mortar 1:4 for construction of thrust block for the support of water supply pipe line including demolition of existing masonry work complete all as directed by Engr-in-charge.

Material and labour for taking down defective foot valves from UG Sump, scraping the corroded footvalves and painting with one coat of red oxide along with black enamel paint, replacing rubber gaskets, bottom rubber with spring complete with replacement of necessary bolts, nuts, washers for following sizes complete all as specified and directed.

150 / 200 mm dia

80 / 100 mm dia

Supply and fix in repair CI non return valve with by pass arrangement and necessary rubber gasket, nuts, bolts, and washers etc., complete all as specified and directed of 200mm dia sizes.

Supply and fixing in repair cast iron air release valve with two air outlets, 80 mm dia bore with isolating sluice valve and fixing up in water supply mains including necessary addition / alternation to DI pipe 150/200/250 mm dia bore with all necesary fittings complete all as specified and as directed.

M&L for construction of brick massionary and valve chamber with angle iron frame and MS sheet cover 3mm thick duly painted 2 coats of red oxide zinc chromate primer including lifting handle, locking arrangement, excavation and earth work , plastering complete all as specified for the following internal dimension:-

900 mm x 900 mm x 900 mm (For 100mm & 150 mm Valve)

1200 mm x 1200 mm x 1200 mm (For 200 mm Valve)

M&L for attending break down of pipe line bursting/cracks with the use of Earthmoving machinery/labour and taking out old CI/DI/MS defective/misaligned water pipe line carefully after disconnection of joints to a length up to 8 mtr and create bund with excavated earth and dewatering/bailing out water complete with diesel engine driven pump set and positioning the pipe line after repairs including replacing CI specials, returning filling and removal of surplus soil/excavated material with the help of excavator/proclainer all directed.for the following sizes of pipes

250/200 mm dia bore

150/100 mm dia CI / DI pipe.

Note: (a) M/L for lead joints, Supply only pipes and Earth work shall be measured and paid separately.

(b) The rate is deemed to include cost for tool and plant and transportation required for attending the repair work.

(c) Disconnecting/dismantling/cutting the existing pipe line is included in the qouted rate

(d) The breakdown shall be attended within 2 hrs of intimation round the clock and time of restoration shall be maximum of 8 hours. The additional manpower required to complete the job in quoted rate is deemed to be included.

Supply only DI K9 water supply pipe lines flanged end having cement mortar lining with portland slag cement as per IS 455 : 1989 bituminous coating as per Annex 'C' of IS 8329 complete of following Sizes

250 mm dia

200 mm dia

150 mm dia

100 mm dia

Supply only DI Specials (any type radius and angle) tapers any type straight increasing decreasing or double socket and ''Y junction double branch , cross (all sockets or socket and spigot)caps and plugs upto 300 mm bore.

Burning out lead joint in position including removing old lead to store for the following sizes:-

100 mm bore

150 mm bore

200 mm bore

250 mm bore

Material and labour for run lead joint for spigot and socket pipes (CI/DI) and fittings of following sizes. complete all as specified and directed by Engr-in-Charge.

100 MM bore

150 mm bore.

200 mm bore.

250 mm bore.

Supply and replace submersible pump controller 3 Ph, 415 V for pump capacity upto 5 HP complete all as specified and as directed.

Supply and laying Sub Class 'B' bricks of old size (23x11x7cm) laid along aligment of cable as protection to cable in trenches complete all as specified and directed by Engineer-in-charge

Dismantling the existing unserviceable LT UG cable and Supply & lay LT UG cable XLPE insulated and armoured, with aluminium conductor, LT 1100 Volts grade of following sizes.

240 sqmm 3 1/2 core.

300 sqmm 3 1/2 core.

(Note :- Excavation & earthwork, duct work, GI pipe for laying of cable and sand cushioning / cable protection covers etc are beyond the scope of this item and shall be measured & paid for separately under respective items of Sch `A')

M & L for Cable End Termination Kit, Heat Shrinkable, outdoor type suitable for 1100 Volts, 3½ Core, 185 to 300 Sq.mm XLPE insulated LT Cable with aluminium conductor complete all as specified and as directed.

Excavation in trenches n.exc 1.5 mtr wide and n.exc 1.5 mtr depth for laying of cables / pipes etc and getting out in hard/dense soil. complete all as specified.

Supply and spreading clean dry sand for cable cushioning in trenches complete all as specified and as directed. Note: Punned thickness shall only be measured and paid.

Returning, filling in including spreading levelling watering and well ramming in layers not exc 25 cm in any type of soil.all as directed by Engr-in-Charge.

Removing excavated material to a distance n.exc 50 mtr and depositing where directed at a level n.exc 1.5 mtr above the starting point all as directed.

Supply and lay in replacement PVC insulated PVC unsheathed cable wire armoured, electric control cables with stranded copper conductor of size 185 Sqmm single core.

Supply only Calcium Hypochlorite, 65 %-70 % in granular form for water treatment. Complete all as specified and as directed . Make: As approved by E-in-C's branch or as approved by GE.

M/S SRI VENKATA BHAVANI CONSTRUCTIONS

SREE CHANDRA CONSTRUCTIONS

KRISHNA ENGINEARING