Technical Specifications-Plumbing.doc

8/16/2019 Technical Specifications-Plumbing.doc

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TECHNICAL SPECIFICATIONS FOR PLUMBING WORKS

I.S. CODES AND REFERENCE STANDARDS.

A. Codes and reference standards referred to in the contract shall be understood to form a part of thecontract.

B. Alternative reference standards produced by different standards authorities may be specified in aSection. Standards of any of the specified authorities may be acceptable, however, materials specifiedin the Section shall be incorporated in the works from only one of the specified standards authority toensure compatibility in the performance of the materials.

C. The contractor shall be responsible for adherence to reference standard requirements by

subcontractors and suppliers.

D. here edition date is not specified, consider that reference to manufacturer!s and published codes,standards and specifications are made to the latest edition "revision or amendment# approved by theissuin$ or$ani%ation current at issue date of the Tender.

&. The specified reference standards are INDIAN STANDARD CODES and are intended to establish thequality of materials and workmanship required for the works. 'eference standards published in other countries may, in the sole (ud$ement of the owner!s consultant, also be acceptable providin$ that theContractor furnishes sufficient data for the )wner!s Consultant to determine if the quality of materialsand workmanship at least equals or e*ceeds all tests prescribed by the specified reference +ndianStandards codes.

Such other reference standards published by the followin$ will be considered

BS+ - British Standards +nstituteA/)' - Association rancise de /ormalisation

"rench Standards +nstitute#D+/ - Deutsche +ndustries /orman "0erman Standards#

A/S+ - American /ational Standards +nstituteAST1 - American Society for Testin$ and 1aterials

. 'eference standards and specifications are quoted in the specification to establish minimum standards.orks of quality or of performance characteristics that e*ceed these minimum standards will beconsidered to confirm.

Should re$ulatory requirements or the contract conflict with specified reference standards or specifications, the more strin$ent in each case shall $overn.

0. here reference is made to manufacturer!s directions, instructions or specifications they shall include

full information on storin$, handlin$, preparin$, mi*in$, installin$, erection, applyin$ or other matters

concernin$ the materials pertinent to their use in the works and their relationship to materials with whichthey are incorporated.

2. )btain copies of codes applyin$ to the ork, manufacturer!s directions and reference standards referredto in the contract within 34 days of si$nin$ the contract.

+. Submit a copy of each code, reference standard and specification, and manufacturer!s directions,instructions and specifications, to which reference is made in the specification to the )wner!sAuthori%ed 'epresentative!s.

ENVIRONS

(Building Services Consultants) Group Housing at aridabad


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5. LIST OF CODES (INDIAN STANDARD CODES)

Standards, specifications, associations, and re$ulatory bodies are $enerally referred to throu$hout thespecifications by their abbreviated desi$nations. The materials workmanship shall be in accordancewith the requirement of the appropriate +.S code wherever applicable to$ether with any buildin$re$ulations or bye6laws $overnin$ the works.

The followin$ list is included for $uidance only and the omission of any Code of 7ractice from thelist does not relieve the contractor from compliance therewith-

The more important Codes, Standards and 7ublications applicable to this section are listedhereinafter-

8. General

+S 8944 1ode of 1easurement

+S 898:;"7art 8# Code of practice for plumbin$ in multi6storeyed buildin$s "ater Supply#

+S 899 /ational buildin$ code of +ndia "7art +? plumbin$ services#

+S 9> 7i$ @ead

+S ;9< Three phase induction motors

+S 3 Specification for water meters "domestic type#

+S 88>9 Code of Basic requirements for water supply draina$e andsanitation

+S 8;> Technical supply conditions for threaded steel fasteners- 7art + +ntroduction"7art 8# and $eneral information.

+S 8;> Technical supply conditions for threaded steel fasteners"7art 9# 7art 9 7roduct $rades and tolerances.

+S 8


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+S 8>9 Specification for cast iron manhole covers and frames

+S 83>3 2i$h test line pipe

+S 8>=9 Code of practice for buildin$ draina$e

+S 94= Selection, installation and maintenance of sanitary appliances6Code of practice

+S 94< Code of practice for water supply in buildin$s

+S 9=; Dimensions for pipe threads for fastenin$ purposes"7art 8# 7art 8 Basic profile and dimensions

+S 9=; Dimensions for pipe threads for fastenin$ purposes"7art 9# 7art 9 Tolerances

+S 9=; Dimensions for pipe threads for fastenin$ purposes"7art ;# 7art ; @imits of si%es

+S 984= Specification for water meter bo*es "domestic type#

+S 9;>; Specification for water meters "bulk type#

+S 9;>3 Colour code for the identification of pipe lines.

+S >


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+S ;=: Cast iron spi$ot socket pipes

+S 8:>3 1alleable cast iron pipe fittin$s"7arts 8 to 84#

+S 8>: Specification for copper alloy $ate, $lobe and check valves for water works purposes

+S ;3


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+S >:8 Specification for cast copper alloy screw down bib taps and stop valves for water services

+S >:9 Specification for caulkin$ lead

+S 939 Specification for ferrule for water services

+S 9=3 Specification for flush valves and fittin$s for marine use

+S 9;9 Specification for automatic flushin$ cistern for urinals

+S >>= Specification for f lushin$ cisterns for water c losets and urinals "other than plastic cistern#

+S >>< Specification for cast iron brackets and supports for wash basins

+S =88 Specification for $el6coated $lass fibre reinforced polyester resin bath tubs

+S >>8 Specification for $la%ed fire clay sanitary appliances "7art 8 to #

+S 9;8 Specification for plastic flushin$ cisterns for water closets and urinals

+S 9


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+S 9


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+S =89> Code of practice for layin$ $la%ed stoneware pipes

+S =;= Specifications for washers for use with fittin$s for water services

+S =>88 1ethods of samplin$ steel pipes, tubes and fittin$s

+S =:


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8.4 GENERAL RE'UIREMENTS

8.8 S*pe + ,r-

8.8.8 The form of Contract shall be accordin$ to the FConditions of ContractF. The followin$ clauses shall be considered as an e*tension and not in limitation of the obli$ation of the Contractor.

8.8.9 ork under this Contract shall consist of furnishin$ all labour, materials, equipment and appliancesnecessary and required. The Contractor is required to completely furnish all the plumbin$ and other speciali%ed services as described hereinafter and as specified in the schedule of quantities andGor shownon the plumbin$ drawin$s.

8.8.; ithout restrictin$ to the $enerality of the fore$oin$, the sanitary installations shall include thefollowin$-6

A. Pl/in# ,r-

i# Sanitary i*tures "i*in$ only#ii# Soil, aste ent and 'ainwater 7ipes ittin$siii# ater Supply System "+nternal#iv# &*ternal Sewera$e Draina$e system

v# 'ain ater 2arvestin$ systemvi# 0arden +rri$ation system, &*ternal water supplyvii# ater supply 7umps ater Treatment System

8.8.= Services rendered under this section shall be done without any e*tra char$e.

8.9 Spe*i+i*a"in

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8.9.8 ork under this Contract shall be carried out strictly in accordance with specifications attached with thetender.

8.9.9 +tems not covered under these specifications due to any ambi$uity or misprints, or additional works, thework shall be carried out as per specifications of the latest Central 7ublic orks Department with uptodate amendments as applicable in the Contract.

8.9.; orks not covered under para 9.8 and 9.9 shall be carried out as per relevant +ndian Standards and incase of its absence as per British Standard Code of 7ractice.

8.; E0e*"in + ,r-

The Contractor should visit and e*amine the site of work and satisfy himself as to the nature of thee*istin$ roads and other means of communication and other details pertainin$ to the work and localconditions and facilities for obtainin$ his own information on all matters affectin$ the e*ecution of work. /o e*tra char$e made in consequence of any misunderstandin$, incorrect information on any of these points or on $round of insufficient description will be allowed.

8.;.9 The work shall be carried out in conformity with the 7lumbin$Gire i$htin$ drawin$s and within the

requirements of architectural, 2AC, electrical, structural and other speciali%ed services drawin$s.

8.;.; The Contractor shall cooperate with all trades and a$encies workin$ on the site. 2e shall make provision for han$ers, sleeves, structural openin$s and other requirements well in advance to preventhold up of pro$ress of the construction schedule.

8.;.= )n award of the work, Contractor shall submit a schedule of construction in the form of a 7&'T chart or BA' chart for approval of the 7ro(ect 1ana$erGArchitectGConsultant. All dates and time schedulea$reed upon shall be strictly adhered to, within the stipulated time of completionG commissionin$ alon$with the specified phasin$s, if any.

8.= Dra,in#

8.=.8 7lumbin$ drawin$s are dia$rammatic but shall be followed as closely as actual construction permits.Any deviations made shall be in conformity with the architectural and other services drawin$s.

8.=.9 Architectural drawin$s shall take precedence over plumbin$ or other services drawin$s as to alldimensions.

8.=.; Contractor shall verify all dimensions at site and brin$ to the notice of the 7ro(ect 1ana$er alldiscrepancies or deviations noticed. Decision of the 7ro(ect 1ana$er shall be final.

8.=.= @ar$e si%e details and manufacturers dimensions for materials to be incorporated shall take precedenceover small scale drawin$s.

8.=.< Any drawin$s issued by the ArchitectsGConsultant for the work are the property of the ArchitectsGConsultant and shall not be lent, reproduced or used on any works other than intended without thewritten permission of the ArchitectsGConsultant.

8.< Inpe*"in an! "e"in# + a"erial

8.


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8..8 Contractor shall provide permanent bench marks, fla$ tops and other reference points for the proper e*ecution of work and these shall be preserved till the end of the work.

8.>.9 All such reference points shall be in relation to the levels and locations, $iven in the architectural and plumbin$ drawin$s.

8.: Re+eren*e !ra,in#

8.:.8 The Contractor shall maintain one set of all drawin$s issued to him as reference drawin$s. Theseshall not be used on site. All important drawin$s shall be mounted on boards and placed in racksinde*ed. /o drawin$s shall be rolled.

8.:.9 All corrections, deviations and chan$es made on the site shall be shown on these reference drawin$s for final incorporations in the completion drawin$s. All chan$es to be made shall be initialed by the 7ro(ect1ana$er or Architects.

8.3 S1p !ra,in#

8.3.8 The Contractor shall submit to the 7ro(ect 1ana$er four copies of the shop drawin$s. ENVIRONS



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8.3.9 Shop drawin$s shall be submitted under followin$ conditions-6

a# Showin$ any chan$es in layout in the plumbin$ drawin$s. b# &quipment layout, pipin$ and wirin$ dia$ram.c# 1anufacturer!s or Contractor!s fabrication drawin$s for any materials or equipment

supplied by him.

8.3.; The Contractor shall submit four copies of catalo$ues, manufacturer!s drawin$s, equipment

characteristics data or performance charts as required by the 7ro(ect 1ana$er.

8.84 Cple"in !ra,in#

8.84.8 )n completion of work, Contractor shall submit one complete set of ori$inal tracin$s and two printsof Fas builtF drawin$s to the 7ro(ect 1ana$er. These drawin$s shall have the followin$ information.

a# 'un of all pipin$, diameters on all floors, vertical stacks and location of e*ternal services.

b# 0round and invert levels of all draina$e pipes to$ether with location of all manholesand connections upto outfall.

c# 'un of all water supply lines with diameters, locations of control valves, access panels.

d# @ocation of all mechanical equipment with layout and pipin$ connections.

/o completion certificate shall be issued unless the above drawin$s are submitted.

8.84.9 Contractor shall provide four sets of catalo$ues, service manuals manufacturer!s drawin$s, performancedata and list of spare parts to$ether with the name and address of the manufacturer for all electrical andmechanical equipment provided by him.

8.84.; All Fwarranty cardsF $iven by the manufacturers shall be handed over to the 7ro(ect 1ana$er.

8.88. Cn"ra*"r2 ra"e

8.88.8 'ates quoted in this tender shall be inclusive of cost of materials, labour, supervision, erection, tools, plant, scaffoldin$, service connections, transport to site, ta*es, octroi and levies, breaka$e, wasta$e andall such e*penses as may be necessary and required to completely do all the items of work and put themin a workin$ condition.

8.88.9 'ates quoted are for all hei$hts and depths and in all positions as may be required for this work.

8.88.; All rates quoted must be for complete items inclusive of all such accessories, fi*tures and fi*in$arran$ements, nuts, bolts, han$ers as are a standard part of the particular item e*cept where speciallymentioned otherwise.

8.88.= All rates quoted are inclusive of cuttin$ holes and chases in walls and floors and makin$ $ood thesame with cement mortarGconcreteGwater proofin$ of appropriate mi* and stren$th as directed by 7ro(ect1ana$er. Contractor shall provide holes, sleeves, recesses in the concrete and masonry work as thework proceeds.

8.88.< The Contractor shall furnish the Architects with vouchers test certificates, on request, to prove thatthe materials are as specified and to indicate that the rates at which the materials are purchased inorder to workout the rate analysis of non tendered items which he may be called upon to carryout.

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8.89 Te"in#

8.89.8 7ipin$ and draina$e works shall be tested as specified under the relevant clauses of the specifications.

8.89.9 Tests shall be performed in presence of the 7ro(ect 1ana$erGConsultant.8.89.; All materials and equipment found defective shall be replaced and whole work tested to meet the

requirements of the specifications.

8.89.= Contractor shall perform all such tests as may be necessary and required by the local authorities tomeet municipal or other bye6laws in force.

8.89.< Contractor shall provide all labour, equipment and materials for the performance of the tests.

8.8;. Si"e *learan*e an! *leanp

8.8;.8 The Contractor shall, from time to time, clear away all debris and e*cess materials accumulated at thesite.

8.8;.9 After the fi*tures, equipment and appliances have been installed and commissioned, Contractor shall

clean6up the same and remove all plaster, paints, stains, stickers and other forei$n matter or discoloration leavin$ the same in a ready to use condition.

8.8;.; )n completion of all works, Contractor shall demolish all stores, remove all surplus materials and leavethe site in a broom clean condition, failin$ which the same shall be done at Contractor!s risk and cost.

8.8=. Li*ene peri" an! a"1ri"ie

8.8=.8 Contractor must hold a valid plumbin$ or any other as required license by the municipal authority or other competent authority under whose (urisdiction the work falls.

8.8=.9 Contractor must keep constant liaison with the municipal Gstatutory authority and obtain approval of alldraina$e, water supply and other works carried out by him.

8.8=.; Contractor shall obtain, from the municipal and other authorities completion certificate with respect tohis work as required for occupation of the buildin$. Contractor shall obtain permanent water supplyand draina$e connections from authorities concerned. &mployer shall re6imburse the fees paid to theauthorities towards the connection char$es an production of receipts for money paid.

8.8< Re*%er& + *" +r a"erial ie! " Cn"ra*"r +ree + *"

8.8


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C""in# + "r*"ral e/er

/o structural member shall be chased or cut without the written permission of the 7ro(ect 1ana$er.

8.8: Ma"erial pplie! /& epl&er

8.8:.8 The Contractor shall verify that all materials supplied by the employer conform to the specifications of the relevant item in the tender. Any discrepancy found shall be brou$ht to the notice of the 7ro(ect1ana$er.

8.83 Ma"erial

8.83.8 Enless otherwise specified and e*pressly approved in writin$ by the 7ro(ect 1ana$er, only materials of makes and specification as mentioned in the list of approved makes attached with the specificationsshall be used.

8.83.9 +f required, the Contractor shall submit samples of materials proposed to be used in the works.Approved samples shall be kept in the office of the 7ro(ect 1ana$er and returned to the Contractor at

the appropriate time.

En! Di%iin 3 4 General re5ireen"

6. Sani"ar& Fi0"re

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9.8 S*pe + ,r-

9.8.8 ork under this section shall consist of furnishin$ labour necessary and required to completely install allsanitary fi*tures, chromium plated fittin$s and accessories as required by the drawin$s specifiedhereinafter and $iven in the Schedule of Iuantities.

9.8.9 ithout restrictin$ to the $enerality of the fore$oin$ the sanitary fi*tures shall include the followin$-6

a# Sanitary fi*tures b# Chromium plated fittin$s c# 7orcelain or stainless steel sinks d# Accessories e.$ towel rods, toilet paper holders, soap dish, towel rack, coat hooks etc.e# 1irrors.

f# Connections to all kitchen, laundry equipment, pump headers and other equipment requirin$ water and draina$e connections.

9.8.; hether specifically mentioned or not all fi*tures and appliances shall be provided with all fi*in$devices, nuts, bolts, screws, han$ers as required.

9.8.= All e*posed pipes within toilets and near fi*tures shall be chromium plated brass or copper unless

otherwise specified.

6.6 General re5ireen"

Sanitary fi*tures shall be of the best quality approved by the 7ro(ect 1ana$er. herever particular makes are mentioned, the choice of selection shall remain with the 7ro(ect 1ana$er.

All fi*tures and fittin$s shall be provided with all such accessories as are required to complete theitem in workin$ condition whether specifically mentioned or not in the Schedule of Iuantities,specifications, drawin$s. accessories shall include proper fi*in$ arran$ement, brackets, nuts, bolts,screws and required connection pieces.

9.9.; i*in$ screws shall be half round head chromium plated brass screws with C.7.washers where

necessary.

9.9.= Contractor shall furnish without cost all such accessories and fi*in$ devices that are necessary andrequired but not supplied alon$ with the 7lumbin$ i*tures C7 ittin$s by the manufacturers as a partof the ori$inal and standard supply.

9.9.< All fittin$s and fi*tures shall be fi*ed in a neat workmanlike manner true to level and hei$htsshown on the drawin$s and in accordance with the manufacturers recommendations. Care shall betaken to fi* all inlet and outlet pipes at correct positions. aulty locations shall be made $ood and anydama$e to the finished floor, tilin$ or terrace shall be made $ood at Contractor!s cost.

9.9. Contractor seal all fi*tures fi*ed near wall, marble and ed$es. ith an approved type of poly6sulphide

sealant appropriate for its application.

6.7 Sppl& + Fi0"re 8 Fi""in# /& O,ner

9.;.8 All 7orcelain fittin$s, C.7. fittin$s accessories shall be supplied by the owners free of cost at site.

9.;.9 Contractor shall take the delivery of the materials directly from the suppliers and will be responsiblefor its safe stora$e and custody.

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9.;.; )nly materials ,accessories and fi*in$ devices supplied as standard supplies by the manufacturer shall be $iven to the contractor .

All balance materials e.$. nuts, bolts, C7 nuts bolts, other fi*in$ devices shall be supplied by thecontractor within the quoted rates.

9.;.< Description and method of fi*in$ is $iven below for the contractor to understand the scope and e*tent of

the work for which main materials will be supplied by the )wners.

6.9 Erpean W.C

9.=.8 &uropean .C. shall be wash down or siphonic type floor or wall mounted set flushed by means of porcelain flushin$ cistern , e*posed or concealed type flush valve or by imported type plastic flushin$systems which will be an inte$ral part of the wall system. ramework ,wallin$ and finishin$ will not forma part of the contractorJs work. here applicable flush pipeG bend shall be connected to the .C. bymeans of a suitable rubber adapter. all hun$ .C. shall be supported by C.+. floor mounted chair.

9.=.9 &ach .C. set shall be provided with a plastic seat shall be with rubber buffers and chromium platedhin$es.

9.=.; 7lastic seat shall be so fi*ed that it remains absolutely stationary in vertical position without fallin$down on the .C. &ach .C. shall be suitable for flushin$ in low volume of water


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9.3 cms or as directed by 7ro(ect 1ana$er.

6.< Sin-

9.>.8 Sinks shall be white $la%ed fireclay or vitreous china or stainless steel or any other material asspecified in the Schedule of Iuantities.

9.>.9 &ach sink shall be provided with brackets of approved and securely fi*ed. Counter top sinks shall befi*ed with suitable brackets or clips as recommended by the manufacturer. &ach sink shall be providedwith =4 mm dia C.7. waste with chain and plu$ as $iven in the Schedule of Iuantities. i*in$ shall bedone as directed by 7ro(ect 1ana$er.

9.>.; Supply fittin$s for sinks shall be mi*in$ fittin$s or C.7. taps as specified in the Schedule of Iuantities.

6.= Han! Drier

9.:.8 The hand drier shall be no touch operatin$ type with solid state time delay to allow user to keep handin any position.

9.:.9 The hand drier shall be fully hy$ienic, rated for continuous repeat use.

9.:.; The ratin$ of hand drier shall be such that time required to dry a pair of hands upto wrists isappro*imately ;4 seconds.

9.:.= The hand drier shall be wall mountin$ type suitable for 9;4 volts, sin$le phase, Tile" +r Dia/le!

9.3.8 here specified in washroom facilities desi$ned to accommodate physically handicapped,accessories should be provided as directed by the 7ro(ect 1ana$er.

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9.3.9 Stainless steel $rab bars of required si%e suitable for concealed or e*posed mountin$ and non6slip$rippin$ surface shall be provided in all washrooms to be used by physically handicapped as directed by the 7ro(ect 1ana$er.

6.3? S1,er e" (Op"inal)

9.84.8 Shower set shall comprise of sin$le lever shower mi*er, C.7. shower arm with wall flan$e and shower head of approved quality or as specified in the Schedule of Iuantities or supplied by the 7ro(ect

1ana$er.

9.84.9 Shower mi*er and shower arm shall be so fi*ed as to keep the wall flan$e clear off the finished wall.all flan$es embedded in the finishin$ shall not be accepted.

6.33 A**erie

9.88.8 Contractor shall install all chromium plated and porcelain accessories as shown on the drawin$s or directed by the 7ro(ect 1ana$er.

9.88.9 All C.7. accessories shall be fi*ed with C.7. brass half round head screws and cup washers in wall withrawl plu$s or nylon sleeves and shall include cuttin$ and makin$ $ood as required or directed by

7ro(ect 1ana$er.

9.88.; 'ecessed porcelain accessories shall be fi*ed in walls and set in cement mortar 8-9 "8 cement- 9 coarsesand# and fi*ed in relation to the tilin$ work as per +nterior Desi$nerJs drawin$s.

6.36 Urinal par"i"in

9.89.8 Erinal partitions shall be white $la%ed vitreous china , marble , $ranite or any other material selected bythe same shall be fi*ed by contractor e*ecutin$ the finishin$ work. The e*act location shall however beco oriented by the 7lumbin$ Contractor.

Erinal partitions shall be fi*ed at proper hei$hts with C.7. brass bolts, anchor fasteners and 1.S. clipsas recommended by the manufacturer and directed by 7ro(ect 1ana$er..

6.37 Meareen"

9.8;.8 Sanitary fi*tures and accessories shall be measured by numbers in the unit $iven in the Schedule of Iuantities.

9.8;.9 'ates for all items shall be inclusive of cuttin$ holes and chases and makin$ $ood the same, C.7 Brassscrews, nuts, bolts and any fi*in$ arran$ements required and recommended by manufacturers, testin$ andcommissionin$.

En! + Di%iin 6 Sani"ar& Fi0"re

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7. Sil@ Wa"e@ $en" 8 Rain,a"er Pipe 8 Fi""in#

7.3 S*pe + ,r-

;.8.8 ork under this section shall consist of furnishin$ all labour, materials, equipments and appliancesnecessary and required to completely install all soil, waste, vent and rainwater pipes and fittin$s asrequired by the drawin$s, and $iven in the Schedule of Iuantities.

;.8.9 ithout restrictin$ to the $enerality of the fore$oin$, the soil, waste, vent pipes system shall include thefollowin$-6

ertical and hori%ontal soil, waste and vent pipes, and fittin$s, (oints, clamps, connections to fi*tures.Connection of all pipes to sewer lines as shown on the drawin$s at $round floor levels.Basement draina$e, channels, $ratin$s floor drains.loor and urinal traps, cleanout plu$s, inlet fittin$s and rainwater headsGhurras.Testin$ of all pipe lines.


;.9.8 All materials shall be new of the best quality conformin$ to specifications and sub(ect to the approval of 7ro(ect 1ana$er.

;.9.9 7ipes and fittin$s shall be fi*ed truly vertical, hori%ontal or in slopes as required in a neat workmanlikemanner.

;.9.; 7ipes shall be fi*ed in a manner as to provide easy accessibility for repair and maintenance andshall not cause obstruction in shafts, passa$es etc.

;.9.= 7ipes shall be securely fi*ed to walls and ceilin$s by suitable clamps a intervals specified.

;.9.< Access doors for fittin$s and clean outs shall be so located that they are easily accessible for repair andmaintenance. Any access panel required in the civil structure, false ceilin$ or marble claddin$ etc. shall

be clearly reported to the )wner in the form of shop drawin$ so that other a$encies are instructed to provide the same.

7.7 Pipin# S&"e

7.7.3 Sil@ Wa"e 8 $en" Pipe

a# The Soil aste 7ipe System above $round has been planned as a Ftwo pipe systemF as defined in +S-


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f# 2ead " Startin$ point# of drains and sewa$eGaste ater Sumps "as and where applicable# havin$ alen$th of $reater than = m upto it connection to the main drain or manhole shall be provided with a :4G844 mm vent pipe terminatin$ above roof as directed by 7ro(ect 1ana$er.

7.9 Rain,a"er Pipe

All open terraces shall be drained by rain water down takes.'ainwater down takes are separate and independent of the soil and waste system and will dischar$e into

the Ender $round Storm water Draina$e system of the Comple*.

'ainwater in open courtyards shall be collected in catch basins and connected to the Storm ater Drains.

7.: Bal*n&Plan"er !raina#e

here ever required planters and other formal landscape areas will be drained by vertical down takesor sub surface draina$e system shown on the drawin$s and directed by the 7ro(ect 1ana$er

7.; Sil Wa"e 8 %en" Pipe 8 +i""in# a/%e #rn!

7.;.3 Ca" Irn Sil @ Wa"e 8 $en" Pipe

a# Soil , aste ent 7ipes used in toilets, kitchens, e*posed locations , basement ceilin$ and under floors and such other locations which may e*pose them to internal or e*ternal hi$h temperaturesor to dama$e shall be sand cast iron soil pipes or centrifu$ally spun cast iron pipes as specified below.

b# All pipes shall be strai$ht and smooth from inside free from irre$ular bore, blow holes,cracks and other manufacturin$ defects.

c# Standard wei$ht, dimensions and pi$ lead required for (oints shall be as follows-6

For pipes conforming to I.S:3989 Centrifugally Cast (Spun) iron pipes.

/ominalDia "11#

Thickness"11#

)verallei$ht for 8.: m lon$

pipe "$.#

1inimum depthof lead (oint from

the lip of socket" 11#

Iuantity of lead per 5oint "$.#


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"c# ei$ht 6 84H 684H

7.;.7 P$C PIPES AND FITTINGS

;..;.8 Definitionu7C pipe means unplasticised 7olyvinyl Chloride pipe , confirmin$ to +S- =3:


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'in$6fit 7ipes

a# Clean the inside of Socket. 'emove all traces of mud, dirt, $rease, $ravel and also clean sealin$rin$.

b# orm the &7D1 rin$ into heart shape by pinchin$ a portion of rin$ inside. +nsert it into thesocket and release to seat in to the $roove.

c# 1ark the insertion depth on spi$ot portion of the pipe. Clean and apply lubricant to insertiondepth before pushin$ in to the Socket. &nsure that no sand or dirt adheres to the lubricatedsurface of the 7ipe.

d# 7ush the Spi$ot into the Socket until it reaches the depth of entry mark, takin$ care not to over insert. This can be done manually. 1ake sure that the insertion of Spi$ot end inside the socketshould be at correct an$le. The 7ipe and 5oint are ready for use.

e# +n case of lar$e diameter 7ipes if crow bar does not $ive sufficient levera$e, use of (ointin$ (ack may be helpful.

7racautions-6

8. u7C 7ipes and ittin$s should not be cleaned by Solvent Cement.

9. or lar$e diameter and 2i$her class 7ipes "84 k$fGcm9 above#, use heavy duty Solvent cement.

7. u7C pipes and fittin$s to be used of same Brand and 1anufacturer.

7..8 ittin$s shall conform to the same +ndian Standard as for pipes. 7ipes and fittin$s must be of matchin$+.S. Specification. +nterchan$e of pipes of one standard with fittin$s on the other standard will not be permitted.

;.>.9 ittin$s shall be of the required de$ree of curvature with or without access door.

;.>.; Access door shall be made up with ; mm thick insertion rubber washer and white lead. The bolts shall be lubricated with $rease or white lead for easy removal later. The fi*in$ shall be air and water ti$ht.

7.= Fi0in#

;.:.8 All vertical pipes shall be fi*ed by $alvanised clamps and $alvanised an$le brackets truly vertical.Branch pipes shall be connected to the stack at the same an$le as that of the fittin$s. /o collars shall be used on vertical stacks. &ach stack shall be terminated at top with a cowl "terminal $uard#.

;.:.9 2ori%ontal pipes runnin$ alon$ ceilin$ shall be fi*ed on $alvanised structural ad(ustable clamps of special desi$n shown on the drawin$s or as directed. 2ori%ontal pipes shall be laid to uniform slopeand the clamps ad(usted to the proper levels so that the pipes fully rest on them.

;.:.; Contractor shall provide all sleeves, openin$s, han$ers, inserts durin$ the construction. 2e shall provideall necessary information to the buildin$ Contractor for makin$ such provisions in the structure asnecessary. All dama$es shall be made $ood to restore the surfaces.

ENVIRONS



22/52

7.> Clap

;.3.8 All pipe clamps, supports and han$ers shall be $alvanised. actory made 7re fabricated clamps shall be preferred. Contactor may fabricate the clamps of special nature and $alvanisethem after fabrication but before installation. All nuts, bolts, washers and other fasteners shall be factory$alvanised.

;.3.9 Clamps shall be of approved desi$ns and fabricated from 1.S. flats" which shall be $alvanised after

fabrication # of thickness and si%es as per drawin$s or contractorJs shop drawin$s. Clamps shall be fi*edin accordance to manufacturerJs detailsGshop drawin$s to be submitted by the contractors.

;.3.; hen required to be fi*ed on 'CC columns , walls or beam they shall be fi*ed with approved type of $alvanised e*pansion anchor fasteners "Dash fasteners# of approved desi$n and si%e accordin$ to load.

;.3.= Structural clamps e.$. trape%e or cluster han$ers shall be fabricated by electro6weldin$ from 1.S.structural members e.$. rods, an$les, channels flats as per Contractors shop drawin$ shall be $alvanisedafter fabrication.. All nuts , bolts and washers shall be $alvanised.

;.3.< 0alvanised slotted an$leGchannel supports on walls shall be provided wherever shown on drawin$s.An$lesGchannels shall be of si%es shown on drawin$s or specified in schedule of quantities.

An$lesGchannels shall be fi*ed to brick walls with bolts embedded in cement concrete blocks and to'CC walls with anchor fasteners mentioned above. The spacin$ of support bolts on support membersfi*ed hori%ontally shall not e*ceed 8 m.

7.3? Trap

7.3?.3 Flr "rap

loor traps shall be C.+ deep seal with an effective seal of


23/52

loor and urinal traps shall be provided with 844689< mm square or round Stainless Steel $ratin$s, withframe and rim of approved desi$n and shape or as specified in the Schedule of Iuantities approved bythe 7ro(ect 1ana$er.

;.84.< in"in# (CI Sil Pipe 8 Fi""in##

5oints for Cast +ron Soil, waste vent, anti syphona$e and rainwater pipes shall be made with drip seal (oints. Sufficient skein of (ute rope dipped in coal tar shall be caulked to leave a minimum space for the

drip seal (oint to be caulked in.

.;.84. Clean" pl#

Clean out plu$ for Soil, aste or 'ainwater pipes laid under floors shall be provided near pipe (unctions bends , tees , LMsN and on strai$ht runs at such intervals as required as per site conditions. Cleanout plu$s shall terminate flush with the floor levels . They shall be threaded and provided with key holes for openin$ . Cleanout plu$s shall be Cast Brass suitable for the 7ipe dia. ith screwed to a 0.+.socket .The socket shall be lead caulked to the drain pipes.

;.88 Wa"e pipe +r applian*e

;.88.8 aste pipe from appliances e.$. washbasins, sinks and urinals shall be of $alvanised steel in toilets,kitchens, pantries and service areas where so required, and as $iven in the Schedule of Iuantities or shown on the drawin$s.

;.88.9 All pipes shall be fi*ed in $radient towards the connection to stack or drains. 7ipes inside all toilets shall be in chase unless otherwise shown on drawin$s. here so required and shown on drawin$s or directed by the 7ro(ect 1ana$er.

;.88.; 0alvanised pipes "here specified or required at site for aste only#

7ipes shall be $alvanised steel tubes conformin$ to +.S.89;3 "medium class# and quality certificatesshall be furnished. 7ipes shall be provided with all required fittin$s e.$. tees, couplin$s, bends, elbows,unions, reducers, nipples, plu$s. All 0.+.waste pipes shall be terminated at the point of connection with

the appliance with an outlet of suitable diameter. 7ipes in chase shall be painted with two coats of black bitumen paint and e*posed pipes with one coat of red o*ide primer and two or more coats of syntheticenamel paint or as $iven in the Schedule of Iuantities.

7.36 Ca" irn pipe +r !raina#e ;.89.8 All draina$e lines passin$ under buildin$, in e*posed position above $round e.$. service floors,

basement ceilin$ etc. shall be cast iron pipes class @A or centrifu$ally spun pipes as per +S ;3:3.

7.36.7 Fi""in#

a# ittin$s e.$. bends, tees, M, reducers used for C.+. draina$e pipe system shall conform to +.S.8


24/52

e*ceedin$ 8


25/52

7.3;. Slee%e C"".

;.8.8 Contractor shall utilised all cut out and sleeves provided durin$ construction to prevent breakin$. Theannular space between the pipe and the sleeve shall be filled up with approved type of fire retardantsealant. hen sleeves are misplaced or inaccurately located contractor shall make the holes in the wall or structural members at his own cost but only with the prior permission of the 7ro(ect 1ana$er.

7.3< Te"in#;.8>.8 Testin$ procedure specified below apply to all soil, waste and vent pipes above $round includin$ C.+.

@A pipes laid in basement ceilin$.

;.8>.9. &ntire draina$e system shall be tested for water ti$htness and smoke ti$htness durin$ and after completion of the installation. /o portion of the system shall remain untested. Contractor must haveadequate number of e*pandable rubber bellow plu$s, manometers, smoke testin$ machines, pipe andfittin$ work test benches and any other equipment necessary and required to conduct the tests.

;.8>.;.;All materials obtained and used on site must have manufacturer!s hydraulic test certificate for each batch of materials used on the site.

7.3= Meareen"

;.8:.8 General

a# 'ates quoted for all items shall be inclusive of all work and items $iven in the Specifications andSchedule of Iuantities.

b# 'ates are applicable for the work in basements, under $round, floors, in shafts at ceilin$ level area for all depths and buildin$ upto=< m in hei$ht.

;.8:.9 'ates are inclusive of cuttin$ holes and chases in 'CC and masonry work where no sleeves or cut outshave been provided durin$ construction and makin$ $ood the same.

;.8:.; 'ates are inclusive of pre testin$, on site testin$, of the installations, materials and commissionin$ of theworks.

;.8:.= 7ipes "unit of measurement. @inear meter to the nearest centimetre #.

;.8:.< C.+. soil, waste, vent, anti syphona$e , rain water pipes, C+ "@A# draina$e pipes shall be measured netwhen fi*ed correct to a centimetre includin$ all fittin$s alon$ its finished len$th.

;.8:. 0.+. pipes shall measured per runnin$ metre correct to a centimetre for the finished work which shallinclude fittin$s e.$. bends, tees, elbows, reducers, crosses, sockets, nipples and nuts. The len$th shall be taken alon$ centre line of the pipes and fittin$s. All pipes and fittin$s shall be classified accordin$ totheir diameter, method of (ointin$ and fi*in$ substance, quality, and finish. The diameters shall benominal diameter of internal bore.

;.8:.> Cement concrete around pipes shall be measured alon$ the centre of the pipe line measured per linear metre and include any masonry supports, shutterin$ and centerin$ cuttin$ complete as described in therelevant specifications.

ENVIRONS



26/52

;.8:.: Slotted an$lesGchannels shall be measured per linear metre of finished len$th and shall include support bolts and nuts embedded in masonry walls with cement concrete blocks and nothin$ e*tra will be paidfor makin$ $ood the same.

;.8:.3 ittin$s " e*cludin$ pipe fittin$s# " Enit of measurement by numbers #

Erinal traps, trap $ratin$s, hoppers, cleanout plu$s shall be measured by number per piece andshall include all items described in the relevant Specifications and Schedule of Iuantities.

;.8:.84 Pain"in#

7aintin$ of pipes and fittin$s shall be measured per runnin$ metre .

;.8:.88 E0*a%a"in +r il pipe

/o e*tra payment shall be admissible with respect to e*cavation, refillin$ and disposal of surplus earthfor cast iron soil and waste pipes laid below $round, in sunken slabs or over basement rafts or for C+"@A# draina$e pipes laid below $round .

En! + Di%iin 7@ Sil@ Wa"e@ $en" 8 Rain,a"er Pipe 8 Fi""in#

ENVIRONS



27/52

9. Wa"er Sppl& S&"e (In"ernal 8 E0"ernal)

=.8 S*pe + ,r-

=.8.8 ork under this section consists of furnishin$ all labour, materials equipment and appliancesnecessary and required to completely install the water supply system as required by the drawin$s,specified hereinafter and $iven in the Schedule of Iuantities.

=.8.9 The fore$oin$, the water supply system shall include the followin$-6

a# Distribution system from main supply headers to all fi*tures and appliances for cold G hot water.

b# Cold water supply lines from tube wells and city water connections to ire and Ender 0roundater Tanks.

c# 0arden irri$ation system

d# &*cavation and refillin$ of pipes trenches.

e# Connections to all plumbin$ fi*tures, tanks, appliances and municipal mains

f# 7ipe protection and paintin$, +nsulation to hot water pipes if required.

$# Control valves, masonry chambers and other appurtenances.


=.9.8 All materials shall be new of the best quality conformin$ to specifications. All works e*ecuted shall beto the satisfaction of the 7ro(ect 1ana$er.

=.9.9 7ipes and fittin$s shall be fi*ed truly vertical, hori%ontal or in slopes as required in a neatworkmanlike manner.

=.9.; Short or lon$ bends shall be used on all main pipe lines as far as possible. Ese of elbows shall berestricted for short connections.

=.9.= 7ipes shall be fi*ed in a manner as to provide easy accessibility for repair and maintenance andshall not cause obstruction in shafts, passa$es etc.

=.9.< 7ipes shall be securely fi*ed to walls and ceilin$s by suitable clamps at intervals specified.

=.9. Clamps, han$ers and supports on 'CC walls, columns slabs shall be fi*ed only by means of approvedmade of e*pandable metal fasteners inserted by use of power drills.

=.9.>. All pipe clamps, supports, nuts, bolts, washers shall be $alvanised 1S steel throu$hout the buildin$.7ainted 1S clamps 1S nuts, bolts washers shall not be accepted.

=.9.: alves and other appurtenances shall be so located as to provide easy accessibility for operations,maintenance and repairs

9.7 Wa"er Sppl& S&"e

ENVIRONS



28/52

9.7.3 Contractor should study the site plan and water supply system dia$ram for an overview of the system9.7.6 Source - ater supply will be acquired from 2EDA water mains to a service connection and captive tube

wells within the site and collected in water stora$e tanks located in basement

9.9 G.I. pipe@ +i""in# 8 %al%e

=.=.8 All pipes inside the buildin$s and where specified, outside the buildin$ shall be $alvanised steel tubes

conformin$ to +.S. 89;3 of 2eavy Class .

=.=.9 ittin$s shall be malleable $alvanised iron with a reinforcin$ rin$ over the threaded ends upto


29/52

9.< Unin

Contractor shall provide adequate number of unions on all pipes to enable easy dismantlin$ later whenrequired. Enions shall be provided near each $unmetal valve, stop cock, or check valve and onstrai$ht runs as necessary at appropriate locations as required andGor directed by 7ro(ect 1ana$er.

9.= Flan#e

lan$ed connections shall be provided on pipes as required or where shown on the drawin$s, allequipment connections as necessary and required or as directed by Connections shall be made bythe correct number and si%e of 0+ nuts, bolts washers with ; mm thick $asket. here hot water or steam connections are made insertion $asket shall be of suitable hi$h temperature $rade and qualityapproved by Bolt hole dia for flan$es shall conform to match the specification for C.+. sluice valve to+.S. >:4. and C.+. butterfly valve to +S- 8;43 Tren*1e

All water supply pipes below $round shall be laid in trenches with a minimum cover of 4 cms. Thewidth and depth of the trenches shall be as follows-6

Dia of pipe idth of trench Depth of trench 6666666666666 666 666666666666666 6666666666666666666 8< mm to < cms < mm to 844 mm =< cms 844 cms

9.3? San! +illin#

0.+. pipes in trenches shall be protected with fine sand 8< cms all round before fillin$ in the trenches.

9.33 Pain"in#

=.88.8 All pipes above $round shall be painted with one coat of red lead and two coats of synthetic enamel paint of approved shade and quality. 7ipes shall be painted to standard colour code $iven in this

documents or specified by 7ro(ect 1ana$er. 9.36 Pipe pr"e*"in

=.89.8 All 0+ and Copper pipes in wall chase and below floor in toilets "where so fi*ed# shall be protecteda$ainst corrosion by the application of two coats of bitumen paint covered with polythene tape and afinal coat of bitumen paint.

9.36.6 0.+. waste pipes buried in $round or sunken slab shall be protected with multi layer bitumen membranetape ;mm thick with a final coat of hot or cold applied bitumen L7ypekoteN or equivalent.

9.37 $al%e

9.37.3 Ball $al%e

alves upto


30/52

=.8=.8 alves < mm dia and above shall be cast iron butterfly valve to be used for isolation. The valves shall be bubble ti$ht, resilient seated suitable for flow in either direction and seal in both direction withaccompanyin$ flan$es and steel handle.

=.8=.9 Butterfly valve shall be of best quality conformin$ to +S- 8;43


31/52

The pipin$ system shall consist of C7C SD' 88.4 pipin$ from 8< mm to


32/52

)nly C7C solvent cement confirmin$ to AST16=3; should be used for (oinin$ pipewith fittin$s. An even coat of solvent cement should be applied on the pipe end and athin coat inside the fittin$ socket, otherwise too much of cement solvent can causeclo$$ed water ways.

e. Ae/l&4

After applyin$ the solvent cement on both pipe and fittin$ socket, pipe should be insertedinto the fittin$ socket within ;4 seconds, and rotatin$ the pipe O to P turn whileinsertin$ so as to ensure even distribution of solvent cement with the (oint. Theassembled system should be held for 84 seconds "appro*imately# in order to allow the (oint to set up.

An even bead of cement should be evident around the (oint and if this bead is notcontinues remake the (oint to avoid potential leaks.

Set Cure times-

Solvent cement set and cure times shall be strictly adhered to as per the belowmentioned table.

1inimum Core prior to pressure testin$ at 8


33/52

Teflon tape shall be used to make threaded connections leak proof.

iv. Sl%en" Ceen"

)nly C7C solvent cement conformin$ to AST1 =3; should be used for (oinin$ pipewith fittin$s and valves. low $uard C7C cement solvent have a minimum shelf life of

8 year.

A$ed cement solvent will often chan$e colour or bein$ to thicken and become $elatinousor (elly like and when this happens, the cement should not be used. The cement solventshould be used within ;4 days after openin$ the companyJs seal and ti$htly close the sealafter usin$ in order to avoid its free%in$. The free%ed cement solvent should be discardedimmediately and fresh one should be used. The C7C solvent cement usa$e should beadhered to as $iven in table below

Diameter of pipe in inch"flow $uard#

PN RN 8N ON 8PN

9N

Appro*. /o. of (oints which can be mode per litre of solventcement.

944 /o 8:4 /o 84 /o

v. Han#er an! ppr"or 2ori%ontal runs, support should be $iven at ; foot "34 cm# intervals for diameters of one inch and below and at = foot "8.9m# intervals for lar$er si%es.

2an$ers should not have rou$h or sharp ed$es which come in contact with the tubin$.Supports should be as per the below mentioned table-

Sie + Pipe 63C 9>C


34/52

8 P > = P

: 944 3 P : : > P > <

SCHEDULE =?

'ecommended Support spacin$ "in feet#

N. Pipe Sie Tepera"re C

(In) () 67 7= 9> ;? P > P P = P = ; :4 : : > P > = P =

= 844 3 3 : P > P < = P

8 Inla"in =.83.8 7ipes for hot water lines in chase shall be insulated with 7olyethylene with layer of to 3 mm

thick foam reinforced Aluminum foil fire retardant class )J preformed insulation of approved make.+nsulation material shall have a density of 844 k$Gcum. Thermal conductivity 4.4;=4 G1A andtemperature ratin$ =4 de$. C to 84< de$. C.

=.83.9 Application

a) Clean all surface thorou$hly with a wire mesh./) Apply one layer of approved primer and fi* 3 mm thick insulation of approved make. Ad(acentlayer of foam shall fit closely so that no part of the pipe is e*posed cello tape fi*ed to keepinsulation in position.

9.6? Meareen"

G.I. pipes above ground shall be measured per linear meter (to the nearest cm) and shall be inclusiveof all fittings e.g. coupling, tees, bends, elbows, unions, f langes and clamps with nuts, bolts !washers fi"ed to wall or other standard supports.

b# 5ointin$ with teflon tape, white lead and insertion $asket of appropriate temperature $rade.

c# Cuttin$ holes, and chases in walls, floors, any pipe support required for pipes below $round makin$ $ood the same.

d# &*cavation, backfillin$, disposal of surplus earth and restorin$ the $round floor in ori$inalcondition.

9.63 Pipe Sppr".

ENVIRONS



35/52

a# abricated and $alvanised supports shall be measured by wei$ht. ei$ht for each type of clampshall be calculated on basis of the quantity of structurals and 1S used from the theoretical wei$htcalculated on basis of the components theoretical wei$ht of the sections.

=.98.8 'ate quoted for supports han$ers shall be inclusive of -6

a# &*pandable anchor fastens. b# 0alvanisin$ of all supports han$ers.

c# Cuttin$ holes in walls, ceilin$s on floors and makin$ $ood where permitted.d# /uts, bolts and washers for fi*in$ and assemblin$.e# ooden G 7C pipe saddles for vertical or hori%ontal runs.

9.63.6 $al%e

0unmetal, cast iron, butterfly and non return valves and puddle flan$es shall be measured by numbersand shall include wheels G caps, 0+ nuts, bolts, washers and insertion $asket.

9.63.7 Pain"in#pipe pr"e*"ininla"in

7aintin$Gpipe protection Ginsulation for pipes shall be measured per linear metre over finished surfaceand shall include all valves and fittin$s for which no deduction shall be made. /o e*tra paymentshall be made for fittin$s, valves or flan$es.

9.66.? Gar!en Irri#a"in S&"e

=.99.8 S*pe + ,r-

=.99.9 ork under this section consists of furnishin$ all labour, materials equipment and appliancesnecessary and required to install $arden hydrants and sprinklers and drip irri$ation water supply systemas required by the drawin$s, specified hereinafter and $iven in the Schedule of Iuantities.

=.99.; ithout restrictin$ to the $enerality of the fore$oin$, the water supply system shall include thefollowin$-6

a# Connections from the water supply system to all hydrants, sprinklers and drip irri$ation points.

b# 0arden hydrants, surface sprinklers pipe emitters.

c# &*cavation and refillin$ of pipes trenches.

d# Control valves, masonry chambers and other appurtenances.

e# Connections to all pumps appliances.

9.67 T1e S&"e

=.9;.8 The $arden hydrant and sprinkler irri$ation system will be new and fully workin$ system in the comple*.

=.9;.9 System components shall be pipes, valves, controllers, various types of sprinklers and drip irri$ationlines with emitters as approved by the 7ro(ect 1ana$er.

=.9;.; General re5ireen"

ENVIRONS



36/52

=.9;.= All materials shall be new of the best quality conformin$ to specifications. All works e*ecuted shall beto the satisfaction of the 7ro(ect mana$er.

=.9;.< 7ipes and fittin$s shall be fi*ed truly vertical, hori%ontal or in slopes as required in a neatworkmanlike manner.

=.9;. Short or lon$ bends shall be used on all main pipe lines as far as possible. Ese of elbows shall berestricted for short connections.

=.9;.> 7ipes shall be laid in a manner as to provide as far as possible easy accessibility for repair and maintenance. 7ipes under roads shall be laid in 7C pipe sleeves.

=.9;.: alves and other appurtenances shall be so located as to provide easy accessibility for operations,maintenance and repairs.

=.9= G.I. Pipe 8 Fi""in#

ertical connection for $arden hydrant points shall be $alvanised steel tubes to +S - 89;3 "mediumclass# will matchin$ malleable iron fittin$s of approved make.

9.6: Sprin-ler

=.9


37/52

This will not apply to drip irri$ation pipes which may be laid (ust below the surface or on surface.

=.;4 Te"in#

=.;4.8 All pipes, fittin$s and valves, after fi*in$ at site, shall be tested by hydrostatic pressure of > k$Gsq.cmor 8.< times the workin$ pressure, whichever is hi$her.

7ressure shall be maintained for a period of at least thirty minutes without any drop.

A test re$ister shall be maintained and all entries shall be si$ned and dated by Contractor"s# and 7ro(ect1ana$er.

=.;4.9 +n addition to the sectional testin$ carried out durin$ the construction, Contractor shall test theentire installation after connections to the pumpin$ system. 2e shall rectify all leaka$es and shallreplace all defective materials in the system. any dama$e done due to carelessness, open or burst pipes or failure of fittin$s, to the buildin$, furniture and fi*tures shall be made $ood by theContractor durin$ the defects liability period without any cost.

=.;4.; After commissionin$ of the water supply system, Contractor shall conduct performance test toensure that the system operates as specified. The test shall be conducted over a period of 8< days.

=.;8 Meareen"

=.;8.8 7ipes shall be measured per linear meter "to the nearest cm# and shall be inclusive of fittin$s, e.$.couplin$s, tees, bends, elbows, unions, deductions for valves shall be made. 'ates quoted shall beinclusive of all fittin$s.

=.;8.9 &*cavation, back fillin$ disposal of surplus earth shall be paid by volume per cubic meter.

=.;8.; 0unmetal, cast iron valves, sprinklers, and emitters by numbers.

=.;8.= 1asonry chambers shall be paid by numbers.

En! + Di%iin 9 Wa"er ppl& (In"ernal 8 E0"ernal)

ENVIRONS



38/52

:. E0"ernal Se,era#e 8 Draina#e S&"e4

:.3 S*pe + ,r-


39/52

< cms above the crownof the sewer shall consist of the finest selected materials placed carefully in 8< cms layersand flooded and consolidated. After this has been laid, the trench and other e*cavation shall berefilled carefully in 8< cms layers with materials taken from the e*cavation, each layer bein$ watered toassist in the consolidation unless the 7ro(ect 1ana$er.


40/52

c# The Contractor shall be held responsible and will be accountable for the sufficiency of alltimberin$, bracin$s, sheetin$ and pilin$ used as also for, all dama$e to persons and propertyresultin$ from improper quality, stren$th, placin$, maintainin$ or removin$ of the same.


41/52

c# here pipes are not bedded on concrete the trench bottom shall be left sli$htly hi$h andcarefully bottomed up as pipe layin$ proceeds so that the pipe barrels rest on firm $round. +f e*cavation has been carried too low it shall be made up with cement concrete at the Contractor!s costand Char$es.

d# +f the bottom of the trench consists of rock or very hard $round that cannot be easily e*cavated to asmooth surface, the pipes shall be laid on cement concrete bed to ensure even bearin$.


42/52

wei$hin$ not less than >.; k$ to be constructed as per standard drawin$. here necessary, sealed cover shall be replaced with C.+. $ratin$ of the same si%e "8 cement - < coarse sand- 84 stone a$$re$ate =4mm nominal si%e#

:.: Rein+r*e! *een" *n*re"e pipe


43/52

c# San!

Sand for various constructional purposes shall comply in all respects with +.S.


44/52

a# herever specified or shown on the drawin$s, all pipes shall be supported in bed all round or haunches. The thickness and mi* of the concrete shall be $iven in the Schedule of Iuantities. idthof the beddin$ shall be as per para =.8=.

b# Enless otherwise directed by the 7ro(ect &n$ineer, cement concrete for bed, alround or in haunchesshall be laid as follows -6

upto 8.< m 8.


45/52

Si%e of cover and 4*=<


46/52

Timberin$ and shorin$ as described above shall be measured per sq.m and paid for as per the typeof timberin$ of shorin$ done at site and as per the relevant item in the Schedule of Iuantities. 'atefor timberin$ and shorin$ shall be for all depths and types of soil classifications includin$saturated soil.


47/52

En! + Di%iin : E0"ernal Se,era#e 8 Draina#e S&"e

;. Spe*i+i*a"in +r Pp 8 Wa"er Trea"en" E5ipen"

;.3. S*pe + ,r-

ork under this section shall consists of furnishin$ all labour, materials, equipment and appliancesnecessary and required to supply install and commission the water supply and draina$e pumps as

described hereinafter and $iven in the schedule of quantities andGor shown on the drawin$s.

;.6. General re5ireen"

.9.8 All materials shall be new of the best quality conformin$ to specifications and sub(ect to theapproval of 7ro(ect 1ana$er.

.9.9. All equipment shall be of the best available make manufactured by reputed firms.

.9.;. All equipment shall be installed on suitable foundations, true to level and in a neat workmanlike manner.

.9.=. &quipment shall be so installed as to provide sufficient clearance between the end walls and betweenequipment to equipment.

.9.. All pump couplin$s and belt $uards for air compressors shall be totally enclosed with < mm mesh.

;.7 Spe*i+i*a"in +r Pp

;.7.3 Ppin# e" +r De"i* an! Clin# ",er Wa"er Tran+er Pp

.;.8.8 ater supply pumps shall be suitable for clean filtered water. 7umps shall be sin$le sta$e, monoblocverticalGhori%ontal, centrifu$al pumps with C.+. body and bron%e impeller, stainless steel shaft,mechanical seal and coupled to a T&C electric motor. &ach pump should be operate to a curve required by the operatin$ conditions.

.;.8.9 All parts in contract with water shall be corrosion resistant.

ENVIRONS



48/52

.;.8.; &ach pump shall be provided with a totally enclosed fan cooled induction motor of suitable 2.7. Themotors shall be suitable for =84 volts, ; phase,


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a# )n completion of the installation contractor shall scrub clean all pumps, pipin$, filters andequipment and apply one coat of primer.

b# Apply two or more coats of synthetic enamel paint of approved make and shade on steel pipes.

c# 7rovide painted identification le$end and direction arrows on all equipment and pipin$ as directed by en$ineer6in6char$e.

d# )n final completion of the work, contractor shall cleanup the site and filter room of all surplusmaterials rubbish and leave the place in a broom6clean condition.

.:. Ca/le

.:.8. Contractor shall provide all power and control cables from the motor control centre to various motors,level controllers and other control devices.

.:.9. Cables shall conform to +.S. 8


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.8;. )ne set of hydraulic in(ector with control valve, brine delivery pipes with ad(ustable indicatin$lamps.

.8;.> )ne cylindrical '7 saturator and mi*in$ tank, provided with brine delivery pipin$ withad(ustable level indicatin$ clamp and control valves complete. The tank shall be of capacityas $iven in the schedule of quantities.

.8;.: )ne orifice board for indicatin$ wash and rinse rate to be filtered in drain sump.

.8;.3 )ne char$e of supportin$ $ravel, sand and FCationF resin in requisite quantity.

.8;.84 )ne water testin$ kit with instructions for testin$ water samples.

;.39. Air /l,er

.8=.8 Air blower shall be rotary type for scourin$ filter and assistin$ in back wash operation.

.8=.9 Air blower shall be driven by a totally enclosed fan cooled induction motor of required 2.7. Blower shall be of capacity recommended by filter manufacturer and shall be of reputed make as approved by architects.

;.3:. Ear"1in#

All equipment installed by the contractor shall be suitably earthed by makin$ proper connection bymeans of 0.+. ires to the main earthin$ system laid by the electrical contractors.

;.3;. M"r *n"rl *en"re

.8.8. Switchboard cubicles of approved type shall be fabricated from 8 $au$e 1.S. Sheet with dustand vermin proof construction. +t shall be painted with stove enamelled paint of approved make andshape. +t shall be fitted with suitable etched plastic identification plates for each motor. Thecubicle shall comprise of the followin$-6 "switch$ear as $iven in the schedule of quantities#.

a# +ncomin$ main switch fuse unit of required capacity.

b# +solation switch fuse unit, one for each motor.

c# ully automatic dolGstar delta starters suitable for motor 2.7. ith push buttons one for each motor and onGoff indicatin$ neon lamps.

d# Sin$le phasin$ preventor of appropriate ratin$ for each motor.

e# 'otary duty selector switch.

f# 7anel type ampere meters one for each motor.

$# 7anel type voltmeter on incomin$ main with rotary selector switch to read volta$e between phaseto neutral and phase to phase.

h# /eon phase indicatin$ lamps and indicatin$ lamp for each motor.

i# 'otary switch for manual or auto operation for each pump.

ENVIRONS



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(# ully taped separate aluminium bus bars of required capacity for normal and emer$ency supplywhere specified.

k# The panel shall be prewired with colour coded wirin$. All interconnectin$ wirin$ from incomin$main to switch $ear, meters and accessories within the switch board panel.

.8.9 All switch$ears and accessories shall be approved make.

.8.;. Switchboard cubicles shall be floor or wall mounted type as recommended by manufacturers.

;.3< Meareen"

.8>.8 0eneral

.8>.9 Enit rate for individual items, e.$, 7umps, 1CC and level controller are for purposes of payments only.7ipin$, headers, valves, accessories, cablin$ and 1CC to measured separately in this contract only.

.8>.; All items must include all accessories fittin$s as described in the specifications, B)I and shown on thedrawin$s.

.8>.= 'ecirculation water pumps

7umps shall be measured by numbers and shall include all items as $iven in the specifications andschedule of quantities to provide a complete workin$ system.

.8>.< Draina$e 7umps

Draina$e pumps shall be measured by numbers and shall include all items as $iven in the specificationsand schedule of quantities to provide a complete workin$ system.

.8>. @evel controllers Alarms

@evel controllers for each set of pumps shall be measured by number and inclusive of probes, cablin$

unto surface bo* near the pump and shall include all items as $iven in the specifications and schedule of quantities to provide a complete workin$ system.

.8>. 7ipin$ ork

Suction and delivery headers for each pumpin$ system shall be measured per linear meter of finishedlen$th and shall include all items as $iven in the schedule of quantities. 7aintin$ shall be included in rateof headers.

.8>.> 0.+. pipes between various equipmentJs shall be measured per linear meter of the finished len$th and shallinclude all fittin$s, flan$es, (ointin$, clamps for fi*in$ to walls or han$ers and testin$. lan$es shallinclude ; mm thick insertion rubber $asket, nuts, bolts and testin$.

.8>.: ater Tank, ibration eliminators, strainers, butterfly valves, slim non return valves shall be measured by numbers and shall include all items as $iven in the schedule of quantities and specifications.

En! + Di%iin ; Pp 8 Wa"er Trea"en" E5ipen"

Documents

Technical Specifications-Plumbing.doc