Electronic Copy - Polypipe · In the opinion of the British Board of Agrément, The Polypipe Underground Drainage System is fit for its intended use provided it is installed, used

Readers are advised to check the validity of this Certificate by either referring to the BBA’s website (www.bbacerts.co.uk) or contactingthe BBA direct (Telephone Hotline 01923 665400).

Polypipe Building ProductsBroomhouse LaneEdlingtonDoncaster DN12 1ESTel: 01709 770000 Fax: 01709 770127

AgrémentCertificate

No 89/2206Third issue*

Designated by Governmentto issue

European TechnicalApprovals

THE POLYPIPE UNDERGROUND DRAINAGE SYSTEMEléments de drainage souterrainsDränungssystem

Product Regulations — Detail Sheet 1• THIS CERTIFICATE REPLACESCERTIFICATE No 85/1572AND RELATES TO THEPOLYPIPE UNDERGROUNDDRAINAGE SYSTEM, THECOMPONENTS OF WHICHARE REFERRED TO IN THEACCOMPANYING DETAILSHEETS.• The system is for use indomestic, commercial andpublic buildings in accordancewith BS EN 752-1 to 4 for theconveyance of rainwater,domestic drainage andsewage as is permitted to bedischarged into public sewersby the Water Industry Act1991, and sewage as ispermitted and defined by theSewerage (Scotland) Act 1968and the Water and SewerageServices (Northern Ireland)Order 1973.• This Certificate does notcover the use of any of theproducts for untreated tradeeffluent.

These Front Sheets must be read inconjunction with the accompanyingDetail Sheets, which provideinformation to specific systems.

1 The Building Regulations 2000 (England and Wales)The Secretary of State has agreed with the British Board of Agrémentthe aspects of performance to be used by the BBA in assessing thecompliance of drainage systems with the Building Regulations. In the

opinion of the BBA, The Polypipe Underground Drainage System, if used inaccordance with the provisions of this Certificate, will meet the relevantrequirements.Requirement: H1(1) Foul water drainage

Comment: The Polypipe system will convey the flow of foul or surfacewater and minimise the risk of blockages or leakage.

Requirement: H3 Rainwater drainage

Comment: The system is acceptable.Requirement: Regulation 7 Materials and workmanship

Comment: The system is acceptable.

2 The Building Standards (Scotland) Regulations 1990 (as amended)

In the opinion of the BBA, The Polypipe Underground Drainage System,if used in accordance with the provisions of this Certificate, will satisfyor contribute to satisfying the various Regulations and related Technical

Standards as listed below.Regulation: 10 Fitness of materialsStandard: B2.1 Selection and use of materials and components

Comment: The system complies with the requirements of this Standard.Regulation: 24 Drainage and sanitary facilitiesStandard: M2 Drainage system

Comment: The system will contribute to satisfying this Standard.

3 The Building Regulations (Northern Ireland) 2000

In the opinion of the BBA, The Polypipe Underground Drainage System,if used in accordance with the provisions of this Certificate, will satisfyor contribute to satisfying the various Regulations as listed below.

Regulation: B2 Fitness of materials and workmanship

Comment: The system is acceptable.Regulation: N4 Underground foul drainage

Comment: The system is acceptable.Regulation: N5 Rain-water drainage

Comment: The system is acceptable

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4 Construction (Design and Management) Regulations 1994 (as amended)

Construction (Design and Management) Regulations (Northern Ireland)1995 (as amended)

Information in this Certificate may assist the client, planning supervisor,designer and contractors to address their obligations under these Regulations.

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In the opinion of the British Board of Agrément, The Polypipe Underground Drainage System isfit for its intended use provided it is installed, used and maintained as set out in this Certificate.Certificate No 89/2206 is accordingly awarded to Polypipe Building Products.

On behalf of the British Board of Agrément

Date of Third issue: 17th January 2002 Chief Executive

*The original Certificate was issued on 29th March 1989. This amended version includes change of company name,change of product range name, updated national Building Regulations, updated Bibliography, addition of CDMRegulations and new Conditions of Certification.

British Board of AgrémentP O Box No 195, Bucknalls LaneGarston, Watford, Herts WD25 9BAFax: 01923 665301

©2002 For technical or additionalinformation, tel: 01923 665300.For information about AgrémentCertificate validity and scope, tel:Hotline: 01923 665400

e-mail: [email protected]: www.bbacerts.co.uk

Bibliography

BS EN 752 Drain and sewer systems outsidebuildingsBS EN 752-1 : 1996 Generalities and definitionsBS EN 752-2 : 1997 Performance requirementsBS EN 752-3 : 1997 PlanningBS EN 752-4 : 1998 Hydraulic design andenvironmental considerations

Conditions of Certification

5 Conditions5.1 This Certificate:(a) relates only to the product that is described,installed, used and maintained as set out in thisCertificate;(b) is granted only to the company, firm or personidentified on the front cover — no other company,firm or person may hold or claim any entitlement tothis Certificate;(c) has to be read, considered and used as awhole document — it may be misleading and willbe incomplete to be selective;(d) is copyright of the BBA.

5.2 References in this Certificate to any Act ofParliament, Regulation made thereunder, Directiveor Regulation of the European Union, StatutoryInstrument, Code of Practice, British Standard,manufacturers’ instructions or similar publication,shall be construed as references to such publicationin the form in which it was current at the date ofthis Certificate.

5.3 This Certificate will remain valid for anunlimited period provided that the product and themanufacture and/or fabricating process(es) thereof:(a) are maintained at or above the levels whichhave been assessed and found to be satisfactoryby the BBA;(b) continue to be checked by the BBA or itsagents; and(c) are reviewed by the BBA as and when itconsiders appropriate.

5.4 In granting this Certificate, the BBA makes norepresentation as to:(a) the presence or absence of any patent or similarrights subsisting in the product or any other product;(b) the right of the Certificate holder to market,supply, install or maintain the product; and(c) the nature of individual installations of theproduct, including methods and workmanship.

5.5 Any recommendations relating to the use orinstallation of this product which are contained orreferred to in this Certificate are the minimumstandards required to be met when the product isused. They do not purport in any way to restate therequirements of the Health & Safety at Work etcAct 1974, or of any other statutory, common lawor other duty which may exist at the date of thisCertificate or in the future; nor is conformity withsuch recommendations to be taken as satisfying therequirements of the 1974 Act or of any present orfuture statutory, common law or other duty of care.In granting this Certificate, the BBA does notaccept responsibility to any person or body for anyloss or damage, including personal injury, arisingas a direct or indirect result of the installation anduse of this product.

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Certificate No 89/2206

DETAIL SHEET 2Third issue*

Polypipe Building Products

THE POLYPIPE UNDERGROUND DRAINAGE SYSTEM

BSI Kitemarked Components• THIS DETAIL SHEET LISTS THE COMPONENTS IN THE POLYPIPE UNDERGROUND DRAINAGESYSTEM THAT ARE CURRENTLY COVERED BY THE BSI KITEMARK CERTIFICATION SCHEME.

BS 4660 : 2000 Thermoplastics ancillary fittings of nominal sizes 110 and160 for below ground gravity drainage and sewerage.BS EN 1401 Plastics piping systems for non-pressure underground drainageand sewerage. Unplasticised poly(vinylchloride) (PVC-U).BS EN 1401-1 : 1998 Specifications for pipes, fittings and the system.Description Polypipe codeNominal size (mm) 110 160Plain ended pipe3 m length UG430 UG6306 m length UG460 UG660Pipes with an integral socket3 m length UG432 UG6326 m length UG462 UG662CouplersDouble socket UG401 UG601Slip double socket UG401 UG601Bends11¼° Single socket UG408 —11¼° Double socket UG407 —15º Single socket UG410 UG61015º Double socket UG409 UG60930º Single socket UG468 —30º Double socket UG467 —45º Single socket UG404 UG60445º Double socket UG403 UG60387.5º Single socket UG412 UG61287.5º Double socket UG411 UG61187.5º Double socket rest UG483 —Reducer single socket UG421 UG621

(82 � 110) (110 � 160)Socket plug UG420 UG620Equal junctions45º Double socket UG406 UG60645º Triple socket UG405 UG60587.5º Double socket UG424 UG62487.5º Triple socket UG423 UG623Unequal junctions45º Double socket — UG63645º Triple socket — UG63587.5º Double socket — UG64487.5º Triple socket — UG643Waste adaptors110 � 32 mm UG455 —110 � 40 mm UG456 —110 � 50 mm UG457 —110 � 32 � 40 mm UG461 —110 � 40 � 40 mm UG492 —Channel pipe UG447 UG64745º Right-hand bend UG451R —45º Left-hand bend UG451L —90º Right-hand bend UG450R —90º Left-hand bend UG450L —Coupler UG449 —Connector UG448 —Junctions45º Right-hand junction UG453R —45º Left-hand junction UG453L —90º Right-hand junction UG452R —90º Left-hand junction UG452L —AdaptorsAdaptor to C.I. or clay socket UG464 UG664Adaptor to C.I. or clay spigot UG463 —

Readers are advised to check the validity of this Detail Sheet by either referring to the BBA’s website (www.bbacerts.co.uk) or contactingthe BBA direct (Telephone Hotline 01923 665400).

CI/SfB

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BSI Kitemark Licence No KM 06383issued to:Polypipe plcDoncaster DN12 1ES.

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BS 5481 : 1977(1989) Specification for unplasticized PVC pipe and fittingsfor gravity sewers.BS EN 1401 Plastics piping systems for non-pressure underground drainageand sewerage. Unplasticised poly(vinylchloride) (PVC-U).BS EN 1401-1 : 1998 Specifications for pipes, fittings and the system.Description Polypipe code

Nominal size (mm) 200 250 315

Plain ended pipe3 m length UG830 UG1030 UG12306m length UG860 UG1060 UG1260Pipes with an integral socket3 m length UG832 UG1032 UG12326 m length UG862 UG1062 UG1262CouplersDouble coupler UG801 UG1001 —Bends15° socket/spigot UG810 — —15° socket/socket UG809 — —45° socket/spigot UG804 — —45° socket/socket UG803 — —


Date of Third issue: 17th January 2002 Chief Executive

*The original Detail Sheet was issued on 29th March 1989. This amended version includes a change of companyname and an updated list of Kitemarked components.




BSI Kitemark Licence No KM 07155issued to:Polypipe plcDoncaster DN12 1ES.

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Installation

1 GeneralInstallation should be carried out in accordancewith BS 5955-6 : 1980, BS EN 752-1 to 4 andthis Detail Sheet.

2 Laying pipesOn trench bottom in granular material (see Figure 1)2.1 Where the as-dug material is suitable(1) for useas bedding, the bottom of the trench may betrimmed to form the pipe bed.(1) Suitable material is defined as granular material inaccordance with the recommendations of BS 5955-6 : 1980,Appendix A, having a nominal particle size not exceeding10 mm or 14 mm for 110 mm and 160 mm diameter pipesrespectively.

2.2 Small depressions should be made toaccommodate the pipe sockets or couplings. Afterthe pipe has been laid these should be carefullyfilled to ensure that no voids remain under, oraround, the socket.

2.3 When the formation is prepared, the pipesshould be laid upon it true to line and level withinthe specified tolerances. Each pipe should bechecked and any necessary adjustments to levelmade by raising or lowering the formation,ensuring that the pipes finally rest evenly on theadjusted formation throughout the length of thebarrels. Adjustment should never be made by localpacking.

2.4 Where the formation is low and does notprovide continuous support, it should be brought upto the correct level by placing and compactingsuitable material.

Figure 1 Pipes laid on trench bottom

On granular beds (see Figures 2 and 3)2.5 When the as-dug material is not suitable as abedding, a layer of suitable granular material (seesection 2.1) must be spread evenly on the trimmedtrench bottom before the pipes are installed. Thetrench should be excavated to allow for thethickness of granular bedding under the barrels.

2.6 The trench formation should be prepared, thebedding placed and the pipes laid in accordancewith BS 5955-6 : 1980 and BS EN 752-1 to 4.

2.7 Where the as-dug material can be handtrimmed by shovel and is not puddled whenwalked upon, a 50 mm depth of bedding materialmay be used. In this case the material must be

Note: As-dug soil, sidefill and backfill to be granularmaterial to BS 5955-6 : 1980. See section 2.1.

as-dug soil

backfill

sidefill

trench bottom trimmedand loosened to form bed

pipe diameter

• THIS DETAIL SHEET RELATES TO THE INSTALLATION OF KITEMARKEDPOLYPIPE 110 mm AND 160 mm DIAMETER uPVC UNDERGROUNDDRAIN PIPES AND FITTINGS TO BS EN 1401-1 : 1998 (SEE DETAILSHEET 2) AND PRODUCTS CERTIFICATED BY THE BBA AS DESCRIBEDIN THIS CERTIFICATE.

This Detail Sheet must be read in conjunction with the Front Sheets and DetailSheet 1 which give Conditions of Certification and the product’s positionregarding the Building Regulations respectively.


DETAIL SHEET 3Second issue*


THE POLYPIPE UNDERGROUND DRAINAGESYSTEM — INSTALLATION

Product

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nominal 10 mm single-sized aggregate with nosharp edges, ie pea gravel (see Figure 2).

2.8 When the pipes are to be laid on rock,compacted sand or gravel requiring mechanicalmeans of trimming, or in very soft or wet ground,the bedding should be a minimum of 100 mm inaccordance with BS 5955-6 : 1980 (see Figure 3).

3 SidefillIn all cases the sidefill must be of the samespecification as the bedding material and extend tothe level of the crown of the pipe and be placedand compacted in accordance with BS 5955-6 :1980.

4 BackfillBackfill above the level of the crown of the pipemust be in accordance with BS 5955-6 : 1980(see Figures 1, 2 and 3).

Figure 2 Pipes laid on 50 mm minimum pea gravelbedding

Figure 3 Pipes laid on 100 mm minimum granularbedding

Bibliography

BS 5955 Plastics pipework (thermoplastics materials)BS 5955-6 : 1980 Code of practice for theinstallation of unplasticized PVC pipework forgravity drains and sewersBS EN 752 Drain and sewer systems outsidebuildingsBS EN 752-1 : 1996 Generalities and definitionsBS EN 752-2 : 1997 Performance requirementsBS EN 752-3 : 1997 PlanningBS EN 752-4 : 1998 Hydraulic design andenvironmental considerationsBS EN 1401 Plastics piping systems for non-pressure underground drainage and sewerage.Unplasticized poly(vinylchloride) (PVC-U)BS EN 1401-1 : 1998 Specifications for pipes,fittings and the system


Date of Second issue: 17th January 2002 Chief Executive

*Original Detail Sheet issued on 29th March 1989. This amended version includes a change of company name,updated British Standard references and a Bibliography.




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Technical Specification

1 Description1.1 The range of Polypipe Gullies covered by thisDetail Sheet is briefly described below:Universal gullies — comprise hoppers with gratingsand universal gully traps incorporating an inlet socketand outlet spigot.Bottle gullies — comprise a body, removable gratingand slide-fit dip tube for rodding access. The dip tubeincludes a sealing ring to BS EN 681-1 : 1996,Type WC. The body incorporates an outlet spigot

to suit 110 mm pipe to BS 4660 : 1989 andBS EN 1401-1 : 1998.Back inlet bottle gullies — similar to the bottle gullybut with 110 mm and 61 mm sockets.Back entry bend — available for use in conjunctionwith the back inlet bottle gully and comprises a 90°bend with provision for solvent welding to the gullybody and a solvent weld inlet socket to suit 110 mmdiameter pipe.

1.2 The range is capable of receiving sockets andspigots of 110 mm diameter; uPVC pipes and fittingscomplying with BS EN 1401-1 : 1998. Dimensionaldetails are shown in Figures 1 and 2.

• THIS DETAIL SHEET RELATES TO THE RANGE OF POLYPIPE GULLIES.• Polypipe Gullies are for use with 110 mm diameter pipes and fittings toBS EN 1401-1 : 1998, for the drainage of surface water or domestic wastewater as is permitted to be discharged into public sewers. See section 3.• The gullies are for external use to receive surface water from paved areas,surface water from roofs and/or waste water from ground-floor domesticappliances. The gullies must be installed adjacent to buildings where theycannot be subjected to vertical loading.• This Detail Sheet does not cover use of the products for the conveyance oftrade effluent, their suitability will depend upon individual circumstances andthe manufacturer’s advice must be followed.This Detail Sheet must be read in conjunction with the Front Sheets and DetailSheet 1 which give Conditions of Certification and the products’ positionregarding the Building Regulations respectively.




POLYPIPE GULLIES

Product

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Figure 1 Universal gullies

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Figure 2 Bottle gullies

2

1.3 The bodies of the gullies, back entry bend,hoppers and gully traps are injection moulded ingolden brown coloured uPVC. The dip tubes, gullygratings and cover plates are injection moulded inblack polypropylene.1.4 The removable dip tube for the bottle gully is a‘slide-fit’ into the gully body and is used to hold thesealing ring in position. The ring seal complies withBS EN 681-1 : 1996 Type WC.1.5 The gully gratings are a ‘push-fit’ into the gullytop and provide cut-outs for 68 mm or 65 mm squaredownpipes (using a square/round rainwater adaptor)or 32 mm, 42 mm and 50 mm waste pipes.1.6 Continuous quality control is exercised duringmanufacture and includes regular visual anddimensional checks.

2 Delivery and site handling2.1 The universal gullies, bottle gullies and backentry bends are supplied in polythene bags. Wherepackaging is used it should be retained during storage.It is important that care is taken to avoid damage.2.2 If a long period of storage on site is envisagedthe products should be protected from direct sunlight.2.3 Each gully and back entry bend carry a labelbearing the BBA identification mark incorporating thenumber of this Certificate.Design Data3 General

Polypipe Gullies are suitable for use indomestic drains designed in accordance withBS EN 752-1 to 4, for the conveyance by

combined or separate systems, of surface water ordomestic sewage as is permitted to be dischargedinto public sewers by the Water Industry Act 1991,the Sewerage (Scotland) Act 1968 or by the Waterand Sewerage Services (Northern Ireland) Order 1973.

4 StrengthWhen installed in accordance with therecommendations given in this Detail Sheet thegullies will have adequate strength to resist the

loads normally encountered in handling, installation

and backfilling. They are not suitable for use in areassubject to vertical loading.

5 Performance of jointsThe performance of joints will not be adverselyaffected by thermal expansion or contractionwhen correctly made.

6 Watertightness/airtightness6.1 Joints with the pipeline remain watertightunder conditions of pipeline movement inexcess of those expected to occur in normal

good drainage practice.

6.2 The seal of the rodding access dip tube willwithstand an air pressure of 50 mm water gauge andwill not therefore nullify the effect of the water seal inthe bottle gully.

7 Flow characteristicsThe satisfactory flow characteristics in thegullies minimise the risk of blockages. Whenmeasured with the flow entering through the

back inlet the maximum flow capacity is 200 litresper minute.

8 Resistance to chemicalsThe gullies will have adequate resistance to thechemicals normally associated with usesstipulated in section 3 of this Detail Sheet.

9 Resistance to elevated temperaturesThe gullies have adequate resistance to thetemperatures likely to be found in surface andwaste water.

10 Practicability of installationInstallation of the gullies is easily achievedunder normal site conditions.

11 Rodding11.1 The gullies provide adequate access forrodding the drain with conventional cane orpolypropylene drain rods (see section 12).

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11.2 Care must be taken to avoid damage to the gullybody when using rods with brass ferrules at the joints.

11.3 Silicone grease should be applied to the bottlegully sealing ring before the product is re-assembled.

12 MaintenanceThe universal gullies are easily cleaned byhand after removal of the hopper grating orcover plate. The grating and dip tube of the

bottle gully must be removed to enable access to thedrainage system.

13 DurabilityIn the opinion of the BBA, when used in the context ofthis Detail Sheet, the materials from which thecomponent parts of the gullies are manufactured willnot significantly deteriorate and the products areexpected to have a life equivalent to that of the uPVCdrainage system.

Installation

14 GeneralInstallation must be carried out in accordance withPolypipe Building Products Installation Guide andProduct Handbook (January 2001) and BS 5955-6 :1980, where applicable.

15 Procedure15.1 The Polypipe Gullies should be bedded on aminimum depth of 100 mm of nominal single-sizedaggregate having no sharp edges. Alternatively,100 mm depth of granular material in accordancewith the recommendations of Appendix A ofBS 5955-6 : 1980, may be used but having aparticle size not exceeding that specified in Table 2of BS 5955-6 : 1980, for a 110 mm diameter uPVCpipe.

15.2 Backfilling is carried out using suitable granularmaterial, as described in section 15.1 up to a levelof 100 mm above the crown of the trap. At shallowerdepths, or if preferred, the gully and trap may besurrounded by a lean mix concrete.

15.3 Connections to the universal gullies are madeby cutting the appropriate sized aperture in thehopper grid blanking plate or through one of themoulded bosses in the hopper body (rectangularhopper) (see Figure 3).

15.4 Provision is made in the bottle gully grating forthe connection of 68 mm and 65 mm squaredownpipes or 32 mm, 40 mm and 50 mmwastepipes. Connection is made by cutting theappropriate aperture in the gully grating and insertingthe relative downpipe or wastepipe (see Figure 4).

15.5 Use of the back inlet gully and back entrybend provides connection for a variety of waste andrainwater adaptors up to and including 110 mmdiameter pipe. The back entry bend is solvent weldedinto the 110 mm diameter boss provided in the backinlet gully body (see Figure 5).

15.6 Inlet connections can also be made by solventwelding the appropriate adaptor into the back inletgully sockets (see Figure 6).

15.7 The maximum depth to invert at which the gullyshould be installed is 600 mm.

15.8 The outlet and inlet pipes (where appropriate)must be protected by paving or concrete to preventdamage by garden implements.

Figure 3 Universal gully installation

Figure 4 Bottle gully installation

Figure 5 Back inlet bottle gully/back entry bendinstallation

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Figure 6 Alternative back inlet installations

Technical Investigations

The following is a summary of the technicalinvestigations carried out in relation to PolypipeGullies and the Back Inlet Bend.

16 TestsTests were carried out to determine:dimensional accuracyairtightnesswatertightnessflow capacityeffect of thermal cycling to BS 4514 : 1983

(BS EN 1329-1 : 2000)ease of rodding and cleaningease of jointingstrength of grating.

17 Other investigations17.1 An evaluation of existing data was made toassess the following:resistance to chemicalssuitability of materialsdurabilityresistance to impactflow characteristicspracticability of installationtensile strengthlong-term creep behaviour

low temperature brittlenessVicat softening pointlikelihood of self or induced siphonageeffectiveness of sealease of cleaningresistance to blockage.17.2 The manufacturing process was examinedincluding the method adopted for quality control anddetails were obtained of the quantity and compositionof the materials used.

Bibliography

BS 4514 : 1983 Specification for unplasticized PVCsoil and ventilating pipes, fittings and accessoriesBS 4660 : 1989 Specification for unplasticizedpolyvinyl chloride (PVC-U) pipes and plastics fittings ofnominal sizes 110 and 160 for below ground gravitydrainage and sewerageBS 5955 Plastics pipework (thermoplastics materials)BS 5955-6 : 1980 Code of practice for theinstallation of unplasticized PVC pipework for gravitydrains and sewersBS EN 681 Elastomeric seals. Material requirementsfor pipe joint seals used in water and drainageapplicationsBS EN 681-1 : 1996 Vulcanized rubberBS EN 752 Drain and sewer systems outside buildingsBS EN 752-1 : 1996 Generalities and definitionsBS EN 752-2 : 1997 Performance requirementsBS EN 752-3 : 1997 PlanningBS EN 752-4 : 1998 Hydraulic design andenvironmental considerationsBS EN 1329 Plastics piping systems for soil andwaste discharge (low and high temperature) withinthe building structure. Unplasticized poly(vinylchloride) (PVC-U)BS EN 1329-1 : 2000 Specifications for pipes,fittings and the systemBS EN 1401 Plastics piping systems for non-pressureunderground drainage and sewerage. Unplasticizedpoly(vinylchloride) (PVC-U)BS EN 1401-1 : 1998 Specifications for pipes,fittings and the system

On behalf of the the British Board of Agrément

Date of Second issue: 17th Janaury 2002 Chief Executive

*Original Detail Sheet issued on 19th October 1990. This amended version includes a change of company name, anupdate to the British Standard references and a Bibliography.




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1 Description1.1 Polypipe Polyrib Ribbed Underground DrainageFittings comprise a PVC-U body with sealing ringsretained by polypropylene snap caps at each socket.The sealing rings are of EPDM to BS EN 681-1 :1996, Type WC. The 15° bend, the 110 mm/160 mm reducer, and the 160 mm coupler,however, have integrally formed seal grooves and donot require snap caps to retain the seal. Each fitting issupplied assembled ready for use.

1.2 The range of fittings assessed is given inTable 1.

1.3 The fitting bodies are injection moulded fromPVC-U. The snap caps are injection moulded frompolypropylene.

1.4 Quality control carried out continuously duringmanufacture includes visual and dimensional checks,and stress relief tests.

1.5 Each fitting has the manufacturer’s logo, nominalsize, product code number, the BBA identification markand the number of this Certificate moulded onto it.

2 Delivery and site handlingThe fittings are supplied in polythene bags and shouldnot be removed until required. Where long-termstorage is envisaged the fittings must be protectedfrom direct sunlight.

• THIS DETAIL SHEET RELATES TO THE POLYPIPE POLYRIB RIBBEDUNDERGROUND DRAINAGE PIPE FITTINGS.• The fittings are for use with pipes complying with BS EN 1401-1 : 1998,or Polycore PVC-U Underground Drainage Pipe covered by Detail Sheet 13of this Certificate.



DETAIL SHEET 12Fourth issue*


POLYPIPE POLYRIB RIBBEDUNDERGROUND DRAINAGE FITTINGS

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Table 1 Range of fittings

PVC-U Double/slip coupler

B

A

NS(mm)

A(mm)

B(mm)

110

160

96

135

45

65

UR401

UR601

C

A

B

CB

A

PVC-U Double socket 87½º short radius bendNS(mm)

110

160

A(mm)

130

192

B(mm)

125

187

C(mm)

45

65

UR411

UR611

PVC-U Single socket 87½º short radius bendNS(mm)

110

160

A(mm)

130

192

B(mm)

145

194

C(mm)

45

65

UR412

UR612 continued

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Table 1 Range of fittings (continued)

A

BC

A

B

C

PVC-U Double socket 15º bendNS(mm)

110

160

A(mm)

55

83

B(mm)

55

83

C(mm)

45

65

UR409

UR609

PVC-U Single socket 15º bendNS(mm)

110

160

A(mm)

55

83

B(mm)

77

83

C(mm)

45

65

UR410

UR610

B C

A

CB

A


110

160

A(mm)

73

106

B(mm)

73

106

C(mm)

45

65

UR403

UR603


110

160

A(mm)

73

106

B(mm)

96

119

C(mm)

45

65

UR404

UR604

AC

B

AC

B

PVC-U Double socket 45º equal branchNS(mm)

110

160

A(mm)

279

422

B(mm)

143

233

C(mm)

45

65

UR406

UR606

PVC-U Triple socket 45º equal branchNS(mm)

110

160

A(mm)

258

405

B(mm)

143

233

C(mm)

45

65

UR405

UR605

A

C

BC

A

B

PVC-U Triple socket 87½º branchNS(mm)

110

A(mm)

222

B(mm)

92

C(mm)

45UR423

PVC-U Double socket 87½º branchNS(mm)

110

A(mm)

243

B(mm)

92

C(mm)

45UR424

CB

A

CB

A


110

160

A(mm)

65

95

B(mm)

65

95

C(mm)

45

65

UR467

UR667


110

160

A(mm)

65

95

B(mm)

84

103

C(mm)

45

65

UR468

UR668

continued

2

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Table 1 Range of fittings (continued)

Design Data

3 GeneralPolypipe Polyrib Ribbed UndergroundDrainage Fittings are suitable for use inunderground drains, and public and private

sewers designed in accordance with BS EN 752-1to 4 for the conveyance, by combined or separatesystems, of surface water and domestic sewage as ispermitted to be discharged into public sewers by theWater Industry Act 1991 and surface water andsewage as is permitted and defined by the Sewerage(Scotland) Act 1968, and the Water and SewerageServices (Northern Ireland) Order 1973.

4 Performance of joints4.1 When used in conjunction with pipes inaccordance with BS EN 1401-1 : 1998 orPolycore PVC-U underground drainage pipe

covered by Detail Sheet 13 of this Certificate, thejoints remain watertight under conditions of pipelinemovement in excess of those expected to occur innormal good drainage practice.

4.2 The performance of joints will not be adverselyaffected by thermal expansion or contraction whencorrectly made.

5 Flow characteristicsThe fittings have satisfactory flow characteristicsto minimise the risk of blockages.

6 Resistance to chemicals6.1 The fittings are suitable for use where pipesand fittings to BS EN 1401-1 : 1998 arenormally used. They have adequate resistance

to the type and quantity of chemicals likely to befound in domestic sewage.

6.2 Details of the chemical resistance of PVC-Uare given in CP 312-1 : 1973. Details of thechemical resistance of EPDM rubber are given inISO TR 7620 : 1986.

7 Resistance to elevated temperaturesThe fittings have adequate resistance to thetemperatures likely to be found in domesticsewage.

8 Practicability of installationThe fittings can be easily installed under normalsite conditions.

9 RoddingDrains incorporating the fittings can be easilyrodded using conventional flexible drain rods.Toothed root cutters, as used with some

mechanical cleaning systems, could damage thefittings or couplings and should not be used.

10 DurabilityThe fittings will have a life equivalent to that ofpipes complying with BS EN 1401-1 : 1998.

Installation

11 General11.1 Drain and sewer systems utilising PolypipePolyrib Ribbed Underground Drainage Fittings mustbe installed in accordance with the recommendations ofBS EN 752-1 to 4, BS 5955-6 : 1980 and themanufacturer’s brochure.

11.2 Precautions must be taken to protect the fittingsfrom damage during construction.

12 Procedure12.1 The following sequence is employed:(a) clean both socket and spigot(b) ensure the ring-seal is correctly seated(c) ensure the pipe has an adequate chamfer(d) apply lubricant to the spigot and the ring seal(e) insert the pipe into the socket to the correct depth.

12.2 The fittings may be used on offcuts of pipeprovided the ends are cut square and adequatelychamfered.

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12.3 The couplers can be used as slip couplers ifthe ‘knock-out’ ribs are removed from the centre of thecouplers in accordance with the manufacturer’sinstructions. To achieve the correct insertion depth thepipes are marked 45 mm from the end of each lengthto be joined. The coupler is slipped fully onto one ofthe pipes, the pipes are located in their final positionand the coupler is eased into its correct position suchthat the insertion marks are visible at each end of thecoupler.


The following is a summary of the technicalinvestigations carried out on the Polypipe PolyribRibbed Underground Drainage Fittings.

13 TestsThe following tests were carried out on the fittings andcouplings:a combined temperature cycling and external loading

test in accordance with BS 4660 : 1989,Appendix D, prior to Amendment 1

Vicat softening point determined according toBS 2782-1 : Method 120B : 1976(1983)

watertightness when subjected to pipelinedeformation and hydrostatic pressure to BS 4660 :1989, Appendix B

watertightness when subjected to angular deflectionand hydrostatic pressure to BS 4660 : 1989,Appendix C

stress relief to BS 2782-11 : Method 1103A :1982(1987)

short-term stiffness to Draft ISO/TC/138/WG11,Method A

dimensional checkspracticability of installation.

14 Other investigations14.1 The manufacturing process was examined,including the methods of quality control, and detailswere obtained of the quality and composition of thematerials used.14.2 A visit to a site was made to establish the easeof assembly of the fittings.

Bibliography

BS 2782 Methods of testing plasticsBS 2782-1 Thermal propertiesBS 2782-1 : Method 120B : 1976(1983)Determination of the Vicat softening temperature ofthermoplasticsBS 2728-11 Thermoplastics pipes, fittings and valuesBS 2728-11 : Method 1103A : 1982(1987) Stressrelief test for injection moulded fittings: oven methodBS 4660 : 1989 Specification for unplasticizedpolyvinyl chloride (PVC-U) pipes and plastics fittings ofnominal sizes 110 and 160 for below ground gravitydrainage and sewerageBS 5955 Plastics pipework (thermoplastics materials)BS 5955-6 : 1980 Code of practice for theinstallation of unplasticized PVC pipework for gravitydrains and sewersBS EN 681 Elastomeric seals. Material requirementsfor pipe joint seals used in water and drainageapplicationsBS EN 681-1 : 1996 Vulcanized rubberBS EN 752 Drain and sewer systems outside buildingsBS EN 752-1 : 1996 Generalities and definitionsBS EN 752-2 : 1997 Performance requirementsBS EN 752-3 : 1997 PlanningBS EN 752-4 : 1998 Hydraulic design andenvironmental considerationsBS EN 1401 Plastics piping systems for non-pressureunderground drainage and sewerage. Unplasticizedpoly(vinylchloride) (PVC-U)BS EN 1401-1 : 1998 Specifications for pipes,fittings and the systemCP 312 Code of practice for plastics pipework(thermoplastics material)CP 312-1 : 1973 General principles and choice ofmaterialISO TR 7620 : 1986 Rubber materials — Chemicalresistance


Date of Fourth issue: 17th January 2002 Chief Executive

*The original Detail Sheet was issued on 15th June 1992. This version includes a change to the company name,updated British Standard references and the Bibliography.




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1 Description1.1 Polypipe Polycore PVC-U UndergroundDrainage Pipe has solid PVC-U smooth internaland external surfaces with a cellular PVC-U core.

1.2 The pipe is extruded in golden brown PVC-Uusing a tri-extrusion head and the addition ofprocessing agents to produce a cellular core. Thepipes are produced with either plain ends (spigotby spigot) or with one end socketed (socket by

spigot). Ring seals manufactured to BS EN 681-1 :1996, Type WC, are provided with each socket.The socket detail is shown in Figure 1 and the pipedimensions in Table 1.

Table 1 Dimensions

Nominal pipe Mean outside Minimum wallsize diameter (DN) thickness (t)(mm) (mm) (mm)

110 110 +0.4 3.2�0.0

160 160 +0.6 4.1�0.0

• THIS DETAIL SHEET RELATES TO THE POLYPIPE POLYCORE PVC-UUNDERGROUND DRAINAGE PIPE.• The pipe, in conjunction with Polyrib Fittings (subject of this Certificate)and fittings to BS EN 1401-1 : 1998, is for use in domestic drainagesystems and public and private sewerage systems.

This Detail Sheet must be read in conjunction with the Front Sheets and DetailSheet 1, which give Conditions of Certification and the product’s positionregarding the Building Regulations, respectively.




POLYPIPE POLYCORE PVC-UUNDERGROUND DRAINAGE PIPE

Product

CI/SfB

(52) In6

Figure 1 Joint details

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1.3 The pipes are available in 3 m and 6 mlengths.

1.4 Quality control tests are carried out continuouslyduring manufacture and include visual, dimensional,impact resistance and heat reversion checks.

1.5 Each pipe is marked with the manufacturer’sname, nominal size, the BBA symbol and thenumber of this Certificate.

2 Delivery and site handling2.1 Handling, storage and transportation shouldbe in accordance with BS 5955-6 : 1980.

2.2 When long-term storage is envisaged, thepipe must be protected from direct sunlight. Thepipe must have adequate protection againstdamage from site traffic.

Design Data

3 GeneralThe Polypipe Polycore PVC-U UndergroundDrainage Pipe has been assessed for usewith fittings complying with BS EN 1401-1 :

1998 and Polyrib fittings (subject to this Certificate)in underground drains, public and private sewers,for the conveyance, by combined or separatesystems, of surface water and domestic sewage asis permitted to be discharged into public sewers bythe Water Industry Act 1991, and surface waterand sewage as is permitted and defined by theSewerage (Scotland) Act 1968 and the Water andSewerage Services (Northern Ireland).

4 StrengthThe pipe has adequate strength for use insituations when pipe to BS EN 1401-1 : 1998is suitable. The pipe has a characteristic impact

resistance value (H50) of 2 m (see section 17).

5 Performance of joints5.1 The performance of joints will not beadversely affected by thermal expansion orcontraction when correctly made.

5.2 Joints with the pipeline remain watertight underconditions of pipeline movement in excess of thoseexpected to occur in normal good drainage practice.

6 Flow characteristicsThe pipe will have normal flowcharacteristics associated with PVC-Uunderground drainage and sewerage systems.

7 Resistance to chemicals7.1 The pipe is suitable for use where pipeto BS EN 1401-1 : 1998 is normally used.It has adequate resistance to the type and

quantity of chemicals likely to be found in domesticsewage.

7.2 Details of the chemical resistance of PVC-Uare given in CP 312-1 : 1973.

8 Resistance to elevated temperaturesThe pipe is for use where pipes and fittingsto BS EN 1401-1 : 1998 are normallyused. It has adequate resistance to

temperatures likely to be found in domestic sewage.

9 Practicability of installationThe pipe is installed easily under normal siteconditions.

10 MaintenanceDrains incorporating the pipe can berodded using conventional flexible drainrods.

11 DurabilityIn the opinion of the BBA, no significantdeterioration of the product will take placewhen used in the context of this Certificate

and installations will have a life equivalent totraditional PVC-U drainage systems.

Installation

12 GeneralDrain and sewer systems utilising the pipe should beinstalled in accordance with the recommendationsof BS 5955-6 : 1980, BS EN 752-1 to 4, and therecommendations given in this Certificate.

13 Jointing procedure13.1 The spigot end and the inside of the socketmust be clean and free from grit, dust or dirt andthe sealing ring should be seated evenly in thesocket groove.

13.2 Lubricant is smeared evenly on thechamfered pipe end or fitting spigot.

13.3 The spigot is inserted into the socket andpushed fully home.

14 Laying pipesOn trench bottom in granular material (see Figure 2)14.1 Where the as-dug material is suitable(1) foruse as bedding, the bottom of the trench may betrimmed to form the pipe bed.(1) Suitable material is defined as granular material inaccordance with the recommendations of BS 5955-6 : 1980,Appendix A, having a nominal particle size not exceeding10 mm or 14 mm for 110 mm and 160 mm diameter pipes,respectively.

14.2 Small depressions should be made toaccommodate the pipe sockets or couplings. Afterthe pipe has been laid these should be filled carefullyto ensure that no voids remain under the socket.

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14.3 When the formation is prepared, the pipeshould be laid upon it true to line and level withinthe specified tolerances. Each pipe should bechecked and any necessary adjustments to levelmade by raising or lowering the formation, ensuringthat the pipes finally rest evenly on the adjustedformation throughout the length of the barrels.Adjustment should never be made by local packing.

14.4 Where the formation is low and does notprovide continuous support, it should be brought upto the correct level by placing and compactingsuitable material.

Figure 2 Pipes laid on trench bottom

On granular beds (see Figures 3 and 4)14.5 When the as-dug material is not suitable asa bedding, a layer of suitable granular material(see section 14.1) must be spread evenly on thetrimmed trench bottom before the pipes areinstalled. The trench should be excavated to allowfor the thickness of granular bedding under thebarrels.

14.6 The trench formation should be prepared,the bedding placed and the pipes laid inaccordance with BS 5955-6 : 1980 andBS EN 752-1 to 4.

14.7 Where the as-dug material can be handtrimmed by shovel and is not puddled whenwalked upon, a 50 mm depth of bedding materialmay be used. In this case the material must benominal 10 mm single-sized aggregate with nosharp edges, ie pea gravel (see Figure 3).

14.8 When the pipes are to be laid in rock,compacted sand and gravel requiring mechanicalmeans of trimming and in very soft or wet ground,the bedding should be a minimum of 100 mm inaccordance with BS 5955-6 : 1980 (seeFigure 4).

15 SidefillIn all cases the sidefill must be of the samespecification as the bedding material and extendto the level of the crown of the pipe and placedand compacted in accordance with BS 5955-6 :1980.

16 BackfillBackfill above the level of the crown of the pipe mustbe in accordance with BS 5955-6 : 1980 (seeFigures 2, 3 and 4).

Figure 3 Pipes laid on 50 mm minimum pea gravelbedding

Figure 4 Pipes laid on 100 mm granular bedding


The following is a summary of the technicalinvestigations carried out on Polypipe PolycorePVC-U Underground Drainage Pipe.

17 TestsTests were carried out to determine:effect of combined temperature and external load

to BS 4660 : 1989, Appendix D, prior toAmendment 1

see section 16 forbackfill specificationrequirements

first 300 mm ofbackfill selected tobe free fromstones exceeding40 mm (unless thegranular materialextends 100 mmabove the pipecrown)

10 mm single sizedaggregate(see section 14.7)

minimum 50 mmpea gravel

where the backfillabove the pipe con-tains stones largerthan 40 mm orwhere the pipeworkis deeper than 2 min poor ground, theselected granularmaterial shouldextend to at least100 mm above thepipe crown

sidefill minimum150 mm wideeach side of piperegardless ofdiameter

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Date of Second issue: 17th January 2002 Chief Executive

*Original Detail Sheet issued on 28th November 1995. This version includes a change of company name, updatedBritish Standard references and an amended Bibliography.




watertightness of joints under conditions of pipedeformation and hydrostatic pressure toBS 4660 : 1989, Appendix B

watertightness of joints under conditions of angulardeflection and hydrostatic pressure to BS 4660 :1989, Appendix C

impact resistance to ISO DIS 11173 (dated31st July 1992) but carried out at 17 ± 5ºCwith a type d 90 striker with a mass of 2.5 kg

Vicat softening temperature of material toBS 2782-1 : Method 120B : 1990

dimensional accuracyshort-term stiffness to ISO 9967 : 1994tensile strength to BS 2782-11 : Method 1110 :

1989(1999)heat reversion to BS 2782-11 : Method 1102A :

1981

18 Other investigations18.1 An examination was made of data relating to:resistance to chemicalsflow characteristics.

18.2 The manufacturing process was examined,including the methods adopted for quality control,and details were obtained of the quality andcomposition of the materials used.

Bibliography

BS 2782 Methods of testing plasticsBS 2782-1 Thermal propertiesBS 2782-1 : Method 120B : 1990 Determinationof Vicat softening temperature of thermoplasticsBS 2728-11 Thermoplastics pipes, fittings and valvesBS 2782-11 : Method 1102A : 1981 Longitudinalreversion of pipes: immersion bath methodBS 2782-11 : Method 1110 : 1989(1999)Tensile properties of dumb-bell specimens from PVCgutter profiles of pipes for non-pressure applications

BS 4660 : 1989 Specification for unplasticizedpolyvinyl chloride (PVC-U) pipes and plastics fittingsof nominal sizes 110 and 160 for below groundgravity drainage and sewerageBS 5955 Plastics pipework (thermoplastics materials)BS 5955-6 : 1980 Code of practice for theinstallation of unplasticized PVC pipework forgravity drains and sewersBS EN 681 Elastomeric seals. Materialrequirements for pipe joint seals used in water anddrainage applicationsBS EN 681-1 : 1996 Vulcanized rubberBS EN 752 Drain and sewer systems outsidebuildingsBS EN 752-1 : 1996 Generalities and definitionsBS EN 752-2 : 1997 Performance requirementsBS EN 752-3 : 1997 PlanningBS EN 752-4 : 1998 Hydraulic design andenvironmental considerationsBS EN 1401 Plastics piping systems for non-pressure underground drainage and sewerage.Unplasticized poly(vinylchloride) (PVC-U)BS EN 1401-1 : 1998 Specifications for pipes,fittings and the systemCP 312 Code of practice for plastics pipework(thermoplastics material)CP 312-1 : 1973 General principles and choiceof materialISO 9967 : 1994 Thermoplastics pipes —Determination of creep ratioISO DIS 11173 Thermoplastics pipes —Determination of resistance to external blows —Staircase method

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Readers are advised to check the validity of this Detail Sheet by either referring to the Index of Current BBA Publications or contactingthe BBA direct (Telephone Hotline 01923 665400).


1 Description1.1 DN 110 and DN 160 Sewerdrain UPVCPipe has solid PVC-U smooth surfaces.

1.2 The pipe is extruded in solid PVC-U. Thepipes are produced with either plain ends(spigot/spigot) or with one end socketed(socket/spigot). Ring seals manufactured to

BS EN 681-1 : 1996, Type WC, are providedwith each socket. The socket detail is shown inFigure 1 and the pipe dimensions in Table 1.

Table 1 Pipe dimensions

Nominal pipe Mean outside Minimum wall Masssize diameter (DN) thickness (t)(mm) (mm) (mm) (kgm–1 )

110 110.0 + 0.3 2.35 1.3

160 160.0 + 0.4 3.15 2.5

• THIS DETAIL SHEET RELATES TO THE DN 110 AND DN 160SEWERDRAIN UPVC PIPE.• The pipe, in conjunction with fittings to BS 4660 : 2000 andBS EN 1401-1 : 1998, or fittings Certified by the BBA, is for use indomestic drainage systems and public and private sewerage systems.• The product is manufactured by Polypipe Ulster, Dromore Road, Lurgan,Craigavon, Co Armagh, Northern Ireland BT66 7HL.Tel: 028 3888 1270 Fax: 028 3888 2344.

This Detail Sheet must be read in conjunction with the Front Sheets, which givethe product’s position regarding the Building Regulations, and Conditions ofCertification.


DETAIL SHEET 15Polypipe Building Products Ltd

DN 110 AND DN 160 SEWERDRAINUPVC PIPE

Product

CI/SfB

(52) In6

Figure 1 Joint details

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2

1.3 The pipes are available as standard inthree metre and six metre lengths.

1.4 Quality control tests are carried outcontinuously during manufacture and include visual,dimensional and impact resistance checks.

1.5 Each pipe is marked with the manufacturer’sname, nominal size, the date, and the number ofthis Certificate.

2 Delivery and site handling2.1 Handling, storage and transportation shouldbe in accordance with BS 5955-6 : 1980.

2.2 When long-term storage is envisaged, thepipe must be protected from direct sunlight.The pipe must have adequate protectionagainst damage from site traffic.

Design Data

3 GeneralDN 110 and DN 160 Sewerdrain UPVCPipe has been assessed for use with fittingscomplying with BS 4660 : 2000 and

BS EN 1401-1 : 1998 in underground drains,public and private sewers, for the conveyance, bycombined or separate systems, of surface waterand domestic sewage as is permitted to bedischarged into public sewers by the WaterIndustry Act 1991 : Chapter 56, and surfacewater and sewage as is permitted and defined bythe Sewerage (Scotland) Act 1968 and the Waterand Sewerage Services (Northern Ireland).

4 StrengthCalculations carried out in accordance withBS EN 1295-1 : 1998 confirm that wheninstalled in accordance with this Certificate,

the pipes will have adequate strength for use atcover depth from 0.6 m to 6 m for areasinaccessible to motor vehicles (field loading), and0.9 m to 6 m in other areas except trunk roads.The pipes have adequate impact resistance.

5 Performance of joints5.1 The performance of joints, whencorrectly made, will not be adversely affectedby thermal expansion or contraction.

5.2 Joints within the pipeline remain watertight underconditions of pipeline movement in excess of thoseexpected to occur in normal good drainage practice.

6 Flow characteristicsThe pipe has normal flow characteristicsassociated with PVC-U undergrounddrainage and sewerage systems.

7 Resistance to chemicals7.1 It has adequate resistance to the type andquantity of chemicals likely to be found in domesticsewage.

7.2 Details of the chemical resistance of PVC-Uare given in CP 312-1 : 1973.

8 Resistance to elevated temperaturesIt has adequate resistance to the normaltemperature range of domestic sewage.

9 Practicability of installationThe pipe is installed easily under normal siteconditions.

10 MaintenanceDrain and sewers incorporating the pipe can bemaintained using jetting equipment in accordancewith the Water Research Centre (WRc) SewerJetting Code of Practice, July 1997, or roddedusing conventional drain rods. Toothed root cuttersused with mechanical-equipped cleaning systemscould damage the pipe and should not be used.

11 DurabilityIn the opinion of the BBA, no significantdeterioration of the product will take placewhen used in the context of this Certificate

and installations will have a life equivalent to thatof a traditional PVC-U drainage system.

Installation

12 GeneralDrain and sewer systems utilising the pipe should beinstalled in accordance with the recommendationsof BS 5955-6 : 1980, BS EN 1610 : 1998 andBS EN 752-1 to BS EN 752-4 : 1997.

13 Jointing procedure13.1 The spigot end and the inside of the socketmust be clean and free from grit, dust or dirt andthe sealing ring should be seated evenly in thesocket groove.

13.2 The pipe, if cut, must be chamfered toapproximately 15° for half the pipe wall thickness,and deburred with a sharp tool.

13.3 Polypipe lubricant should be smeared evenlyon the chamfered pipe end and on the sealing ring.

13.4 The spigot is inserted into the socket andpushed fully home.

14 Laying pipesOn granular beds (see Figures 2 and 3)14.1 When the as-dug material is not suitable as abedding, a layer of suitable granular material mustbe spread evenly across the total width of the trenchbottom before the pipes are installed. The trench

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should be excavated to allow for the thickness ofgranular bedding under the barrels.14.2 The trench formation should be prepared,the bedding placed and the pipes laid inaccordance with BS 5955-6 : 1980 andBS EN 1610 : 1998.14.3 Where the trench bottom can be handtrimmed by shovel and is not puddled whenwalked upon, a 50 mm depth of bedding materialmay be used. In this case the material must benominal 10 mm single-sized aggregate, ie peagravel (see Figure 2).

Figure 2 Pipes laid on 50 mm minimum single sizedaggregate bedding

14.4 When the pipe is to be laid in other situations,eg in rock, compacted sand and gravel requiringmechanical means of trimming and in very soft orwet ground, the bedding should be a minimum of100 mm. In this case the material shall be inaccordance with Clause 7.2 of BS 5955-6 :1980 (see Figure 3).

Figure 3 Pipes laid on 100 mm granular bedding

15 SidefillIn all cases, the sidefill must be of the samespecification as the bedding material and extendto the level of the crown of the pipe and placedand compacted in accordance with BS 5955-6 :1980.

16 BackfillBackfill above the level of the crown of the pipe mustbe in accordance with BS 5955-6 : 1980 (seeFigures 2 and 3).


The following is a summary of the technicalinvestigations carried out on DN 110 andDN 160 Sewerdrain UPVC Pipe.

17 TestsTests were carried out to determine:effect of combined temperature ageing and

external loadleaktightness of joints to BS EN 1277 : 1996,

Method 4, Conditions A, B, Cring flexibility to BS EN 1446 : 1996impact resistance to BS EN 744 : 1996 (as

specified in BS EN 1401-1 : 1998)Vicat softening temperature of material to

BS 2782-1 : Method 120B : 1990dimensional accuracy short-term stiffness to BS EN ISO 9969 : 1995tensile strength to BS EN 638 : 1995heat reversion to BS EN 743 : 1995.

18 Other investigations18.1 An examination was made of data relatingto:resistance to chemicalsflow characteristicswater jetting.

18.2 Calculations were carried out in accordancewith BS EN 1295-1 and UK National Annex toestablish suitability of pipes detailed in thisCertificate.18.3 The manufacturing process was examined,including the methods adopted for quality control,and details were obtained of the quality andcomposition of the materials used.

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Bibliography

BS 2782 Methods of testing plasticsBS 2782-1 Thermal propertiesBS 2782-1 : Method 120B : 1990 Determinationof Vicat softening temperature of thermoplastics

BS 4660 : 2000 Thermoplastics ancillary fittingsof nominal sizes 110 and 160 for below groundgravity drainage and sewerage

BS 5955 Plastics pipework (thermoplasticsmaterials)BS 5955-6 : 1980 Code of practice for theinstallation of unplasticized PVC pipework forgravity drains and sewers

CP 312 Code of practice for plastics pipework(thermoplastics material)CP 312-1 : 1973 General principles and choiceof material

BS EN 638 : 1995 Plastics piping and ductingsystems — Thermoplastics pipes — Determinationof tensile properties

BS EN 681 Elastomeric seals. Materialrequirements for pipe joint seals used in water anddrainage applicationsBS EN 681-1 : 1996 Vulcanized rubber

BS EN 743 : 1995 Plastics piping and ductingsystems — Thermoplastics pipes — Determinationof the longitudinal reversion

BS EN 744 : 1996 Plastics piping and ductingsystems. Thermoplastics pipes. Test method forresistance to external blows by the round-the-clockmethod

BS EN 752 Drain and sewer systems outsidebuildingsBS EN 752-1 : 1996 Generalities and definitionsBS EN 752-2 : 1997 Performance andrequirementsBS EN 752-3 : 1997 PlanningBS EN 752-4 : 1998 Hydraulic design andenvironmental considerationsBS EN 1277 : 1996 Plastics piping systems.Thermoplastics piping systems for buried non-pressure applications. Test methods forleaktightness of elastomeric sealing ring type jointsBS EN 1295 Structural design of buried pipelinesunder various conditions of loadingBS EN 1295-1 : 1998 General requirementsBS EN 1401 Plastics piping systems for non-pressure underground drainage and sewerage —Unplasticized poly (vinyl chloride) (PVC-U).BS EN 1401-1 : 1998 Specifications for pipes,fittings and the system

BS EN 1446 : 1996 Plastics piping and ductingsystems. Thermoplastics pipes. Determination ofring flexibilityBS EN 1610 : 1998 Construction and testing ofdrains and sewers

BS EN ISO 9969 : 1995 Thermoplastics pipes.Determination of ring stiffness


Date of issue: 27th February 2001 Chief Executive




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1 Description1.1 Polypipe 110 mm and 160 mm diameterpipe couplings comprise a polypropylene bodywith sealing rings retained by polypropylene snapcaps at each end. The sealing rings are of EPDMto BS EN 681-1 : 1996, Type WC. Eachcoupling is supplied assembled ready for use.

1.2 The Polypipe double socket adaptor (PolypipeCode UG434/Paragon Code 972.110)comprises a polypropylene body with sealing ringsretained by polypropylene snap caps at each end(see Figures 1 and 2). One end is suitable forconnection to PVC-U pipe or spigots toBS EN 1401-1 : 1998. The other end is forconnection to clay pipe with an external diameterof between 115 mm and 124 mm. ThePolypipe socket/ spigot adaptor (PolypipeCode UG459/Paragon Code 973.110) issimilar to the double socket adaptor but with a110 mm diameter spigot.

1.3 The coupling body, adaptor body and snapcaps are injection moulded from polypropylene.

1.4 Quality control carried out continuously duringmanufacture includes visual and dimensionalchecks, impact resistance the stress relief tests.

1.5 Each coupling and adaptor is stamped withthe manufacturer’s name and product code numberand carries a label bearing the BBA identificationmark incorporating the number of this Certificate.

2 Delivery and site handlingThe products are supplied in polythene bags fromwhich they should not be removed until required.

Figure 1 Pipe adaptor (110 mm)

Figure 2 Chamber adaptor (110 mm)

• THIS DETAIL SHEET REPLACES DETAIL SHEETS 4 AND 7 ANDRELATES TO THE POLYPIPE 110 mm AND 160 mm DIAMETERPOLYPROPYLENE PIPE COUPLINGS, AND POLYPIPE ADAPTORS FORCONNECTION TO THIN WALLED CLAYPIPE.• The couplings and adaptors are for use with pipes and fittingscomplying with BS EN 1401-1 : 1998.



DETAIL SHEET 16Polypipe Building Products

POLYPIPE COUPLINGS AND ADAPTORS

Product

CI/SfB

(52) In6

Electronic Copy

Design Data

3 GeneralPolypipe 110 mm and 160 mmpolypropylene couplings and PolypipeAdaptors are suitable for use in underground

drains, and public and private sewers designed inaccordance with BS EN 752-1 to 4, by combinedor separate systems, of surface water and domesticsewage as is permitted to be discharged intopublic sewers by the Water Industry Act 1991 andsurface water and sewage as is permitted anddefined by the Sewerage (Scotland) Act 1968,and the Water and Sewerage Services (NorthernIreland) Order 1973.

4 StrengthThe products will have adequate strength toresist all normal service loads associatedwith installation and use.

5 Performance of joints5.1 When used in conjunction with pipes andfittings in accordance with BS EN 1401-1 :1998, the joints remain watertight under

conditions of pipeline movement in excess of thoseexpected to occur in normal good drainage practice.

5.2 The performance of joints will not beadversely affected by thermal expansion orcontraction when correctly made.

5.3 The restrictions on types of soil, depth ofburial etc are applied to ensure that the soil loadsand movements are accommodated by theproducts without detriment.

6 Flow characteristicsThe products have satisfactory flowcharacteristics to minimise the risk ofblockages.

7 Resistance to chemicals7.1 The products are suitable for use wherepipes and fittings to BS EN 1401-1 : 1998,are normally used. They have adequate

resistance to the type and quantity of chemicalslikely to be found in domestic sewage.

7.2 Details of the chemical resistance ofpolypropylene are given in CP 312-1 : 1973.

8 Resistance to elevated temperaturesThe products have adequate resistance tothe temperatures likely to be found indomestic sewage.

9 Practicability of installationThe products can be easily installed undernormal site conditions.

10 DurabilityThe products will have a life equivalentto that of pipes complying withBS EN 1401-1 : 1998.

Installation

11 General11.1 Drain and sewer systems utilizing theproducts, must be installed in accordance with therecommendations of BS EN 752-1 to 4,BS 5955-6 : 1980 and the manufacturer’sbrochure Underground Drainage Systems.

11.2 Precautions must be taken to protect theproducts from damage during construction.

11.3 It is a requirement of the Building Standards(Scotland) Regulations 1990 (as amended) and theBuilding Regulations (Northern Ireland) 2000 that aconcrete backfill is provided in certain situationsand concrete of a suitable strength must be used.

11.4 The products are installed in accordancewith the same requirements as for 110 mm PVC-Upipes and fittings (see Detail Sheet 3).

11.5 Drains utilizing the products must be laid ina firm-sided trench with a depth not less than threetimes the pipe diameter and a width not exceeding700 mm.

12 ProcedureTo make a joint, ensure that the pipes haveadequate chamfers (see Figure 3), clean both thesocket and the spigot and check that the ring sealis correctly seated. Apply the recommendedlubricant to the spigot and ring seal and insert thepipe fully into the socket. The spigot should then bewithdrawn by 10 mm to allow for expansion andground movement.

Figure 3 Details of pipe chamfer

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The following is a summary of the technicalinvestigations carried out on the Polypipe 110 mmand 160 mm polypropylene pipe couplings andPolypipe Adaptors.

13 TestsThe following tests were carried out:effect of a combined temperature cycling andexternal loading test in accordance withBS 4660 : 1989, Appendix D, prior toAmendment 1

Vicat softening point determined according toBS 2782-1 : Method 120B : 1990

watertightness when subjected to 10% pipelinedeformation

watertightness when subjected to a pipelinedeflection of 12°

watertightness when subjected to side and verticaldisplacements of up to 20 mm

dimensional checks

practicability of installation.

14 Other investigations14.1 An examination was made of data relating to:resistance to chemicalssuitability of sealing ringsquality of the mouldingdurability.

14.2 The manufacturing process was examinedincluding the methods of quality control and detailswere obtained of the quality and composition ofthe materials used.

14.3 A visit to a site in progress was made toestablish the ease of assembly of the couplings andadaptors in site conditions.

Bibliography

BS 2782 Methods of testing plasticsBS 2782-1 Thermal propertiesBS 2782-1 : Method 120B : 1990 Determinationof Vicat softening temperature of thermoplastics

BS 4660 : 1989 Specification for unplasticizedpolyvinyl chloride (PVC-U) pipes and plastics fittingsof nominal sizes 110 and 160 for below groundgravity drainage and sewerage

BS 5955 Plastics pipework (thermoplasticsmaterials)BS 5955-6 : 1980 Code of practice for theinstallation of unplasticized PVC pipework forgravity drains and sewers

BS EN 681 Elastomeric seals. Materialrequirements for pipe joint seals used in water anddrainage applicationsBS EN 681-1 : 1996 Vulcanized rubber


BS EN 1401 Plastics piping systems for non-pressure underground drainage and sewerage.Unplasticized poly(vinylchloride) (PVC-U)BS EN 1401-1 : 1998 Specifications for pipes,fittings and the system


3


Date of issue: 17th January 2002 Chief Executive

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1 Description1.1 The Polypipe 450 mm by 600 mmRectangular Inspection Chamber (see Figure 1)comprises:(1) a black, injection-moulded, polypropylenebase unit with integral benching, and four sideinlets each 110 mm diameter incorporating ringseals to BS EN 681-1 : 1996, Type WC, retainedby polypropylene snap caps. The base unit hasinternal dimensions of 450 mm by 600 mm, anominal wall thickness of 4 mm and an invert levelof 330 mm. Three blanking plugs are supplied withthe unit.(2) black injection-moulded risers, with internaldimensions of 450 mm by 600 mm, a wallthickness of 8 mm and a depth of 180 mm,providing up to 150 mm of extension.

1.2 The maximum invert depth of the chamber isdependent on the number of risers (see Table 1).

Figure 1 Inspection chamber for the rectangularchamber

• THIS DETAIL SHEET REPLACES DETAIL SHEETS 5, 11 AND 14 ANDRELATES TO THE POLYPIPE 450 mm BY 600 mm RECTANGULAR,320 mm DIAMETER AND 460 mm DIAMETER INSPECTION CHAMBERSYSTEMS INCORPORATING BASE UNITS (110 mm CHANNELS OR110 mm/160 mm CHANNELS), SEPARATE RISERS ANDCOVER/FRAME ASSEMBLIES.• The products are for use with 110 mm and/or 160 mm PVC-U pipesand fittings to BS EN 1401-1 : 1998 or with other products covered bythis Certificate. They provide a means of access to drains for testing,rodding and removal of debris.• The inspection chambers are for use at depths of up to 1.2 m in areasrestricted to pedestrians and pedal cyclists where Group 1 covers toBS EN 124 : 1994 would be suitable. The inspection chamber basesand risers can also be used at depths of up to 1.2 m in footways,pedestrian areas and comparable areas, car parks or car parking decksif a cover and frame Kitemarked to BS EN 124 : 1994, Group 2 (notsupplied by Polypipe Building Products is used (see section 13 andFigure 3).• The 110 mm and 110 mm/160 mm base units can also be used aspreformed bases in conventional manholes of depths up to 6 m constructedin accordance with BS EN 752-1 to 4 (see section 13 and Figure 4).• This Detail Sheet does not cover the use of inspection chambers foruntreated trade effluents.

This Detail Sheet must be read in conjunction with the Front Sheets and DetailSheet 1, which give the Conditions of Certification and the product’s positionregarding the Building Regulations, respectively.


DETAIL SHEET 17


POLYPIPE 450 mm BY 600 mm RECTANGULAR,320 mm DIAMETER AND 460 mm DIAMETERINSPECTION CHAMBER SYSTEMS

Product

CI/SfB

(52) In6

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Table 1 Invert depth for the rectangular chamber

Maximum invert depth(mm)

base unit only 330base plus one riser 450base plus two risers 600base plus three risers 750base plus four risers 900base plus five risers 1050

1.3 The rectangular pressed steel cover for therectangular chamber has dimensions of 470 mmby 620 mm and is supplied with a polypropyleneframe. The steel is to BS EN 10143 : 1993.

1.4 The Polypipe 320 mm Diameter InspectionChamber (see Figure 2) comprises:(1) a black, injection-moulded, polypropylenebase unit with integral benching, with 45° sideinlets, a straight inlet, and one outlet, each110 mm diameter incorporating ring seals toBS EN 681-1 : 1996, Type WC, retained bypolypropylene snap caps. The base unit has aninternal diameter of 320 mm, a nominal thicknessof 4 mm and an invert level of 170 mm. Twoblanking plugs are supplied with the unit.

(2) black injection-moulded risers which have aninternal diameter of 320 mm, are 4 mm thick and135 mm deep.

(3) an injection-moulded, polypropylene frame witha 320 mm diameter by 50 mm thick concrete cover.

Figure 2 320 mm diameter inspection chamber

1.5 The minimum invert depth of the 320 mmdiameter chamber is dependent on the number ofrisers (see Table 2).

Table 2 Invert depth for the 320 mm diameterchamber

Max invert depth(mm)

base plus one riser 314base plus two risers 457base plus three risers 600

1.6 The Polypipe 460 mm Diameter InspectionChamber Systems (see Figure 3) comprise:(1) Alternative 110 mm channel base units or110 mm/160 mm base units, as follows:(1a) A black, injection-moulded, polypropylenebase unit with open channels, five inlets and oneoutlet each 110 mm diameter incorporating ringseals to BS EN 681-1 : 1996, Type WC, retainedby polypropylene snap caps. The base unit has aninternal diameter of 460 mm, a nominal thicknessof 4 mm and an invert depth of 220 mm. Threeblanking plugs are supplied with the unit, or

(1b) As (1a) above but with a 160 mm mainchannel with 160 mm inlet and outlet sockets, two160 mm side inlets at 90° to the main channel andtwo 110 mm side inlets at 45° to the main channel.The depth of the base unit is 250 mm. Two 110 mmdiameter and two 160 mm diameter blanking capsare supplied with each unit, fitted into the sidechannel sockets.

Figure 3 460 mm diameter inspection chamber

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(2) Black, injection-moulded, polypropylene riserswith a nominal internal diameter of 460 mm,external reinforcing ribs and a thickness of 4 mmand an invert depth of 215 mm.1.7 The maximum invert depth of the 460 mmdiameter inspection chamber is dependent on thenumber of risers and the choice of base unit (seeTable 3).

Table 3 Invert depth for the 460 mm diameterchamber

Max invert depth(mm)

110 mm base(1)


110 mm/160 mm base(1)


(1) Top riser must be cut to level.

1.8 460 mm EPDM rubber sealing rings toBS EN 681-1 : 1996, Type WC, are availableseparately. The seals are fitted into the grooves onthe outside of the risers to make watertight jointsbetween risers and bases/risers.

1.9 460 mm chamber cover and frameassemblies are available as four options, as shownin Table 4. The cast iron is to BS EN 1561 :1997 and is coated with cold-applied blackbitumen to BS 3416 : 1991. The pressed steel isto BS EN 10143 : 1993.

1.10 Continuous quality control carried out duringmanufacture includes visual and dimensional checks.

Table 4 Cover and frame assembly — materials

Material of cover Diameter of cover (mm) Material of frame

cast iron 493 cast ironcast iron 493 polypropylenepressed steel 490 polypropyleneconcrete 490 polypropylene

2 Delivery and site handlingThe inspection chamber bases, risers, 320 mm and460 mm seals and covers/frames are delivered tosite unprotected and reasonable care in handlingand storage is required to avoid damage ordistortion.

Design Data

3 GeneralThe Polypipe 450 mm by 600 mmRectangular, 320 mm Diameter and460 mm Diameter Inspection Chamber

Systems are suitable for use in underground drains,and public and private sewers designed inaccordance with BS EN 752-1 to 4 forconveyance, by combined or separate systems, ofsurface water and domestic sewage as is permittedto be discharged into public sewers by the WaterIndustry Act 1991 and surface water and sewageas is permitted and defined by the Sewerage(Scotland) Act 1968, and the Water andSewerage Services (Northern Ireland) Order1973.

4 Strength4.1 When used with the specified coversand frames, and installed in accordancewith the recommendations given in this Detail

Sheet, the inspection chamber system has adequatestrength for use in areas where Group 1 covers toBS EN 124 : 1994 can be used.

4.2 The inspection chamber system also hasadequate strength to withstand the loads associatedwith normal site handling, installation and draincleaning operations.

5 Performance of joints5.1 Joints when correctly made will not beadversely affected by thermal expansion orcontraction.

5.2 Joints with the pipeline remain watertightunder conditions of pipeline movement in excess ofthose expected to occur in normal good drainagepractice.

6 WatertightnessThe assembled inspection chambers andcorrectly made connections between theinspection chamber and the drain run will

not allow seepage of water into or from thesurrounding soil.

7 Flow characteristicsThe dimensions of the inspection chambersbase will minimise the risk of blockagesproviding the drainage layout is designed in

accordance with BS EN 752-1 to 4.

8 Resistance to chemicals8.1 The inspection chambers are suitablefor use where pipes and fittings toBS EN 1401-1 : 1998 are normally used.

They have adequate resistance to the type andquantity of chemicals likely to be found in domesticsewage.

8.2 Details of the chemical resistance ofpolypropylene are given in CP 312-1 : 1973.Details of the chemical resistance of EPDM rubberare given in ISO TR 7620 : 1986.

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9 Resistance to elevated temperatures

The inspection chambers and covers haveadequate resistance to the temperatures likelyto be found in domestic sewage. The

resistance will be similar to that of the PVC-Udrainage system to which it is connected.

10 Practicability of installation

The inspection chamber base with riser andthe cover and frame assemblies are installedeasily under normal site conditions.

11 Rodding and testing

11.1 Normal rodding of the drain can becarried out using polypropylene rods orsimilar flexible systems but care must be

taken to avoid damaging the inspection chambers.

11.2 The chambers provide access to the drainfor the installation of test equipment.

12 Durability

The inspection chamber will have a lifeequivalent to that of the PVC-U drainagesystem to which it is connected, ie in excess

of 50 years.

Installation

13 Procedure13.1 Typical installation of the Polypipe 450 mmby 600 mm Rectangular Inspection Chamber isshown in Figure 4, of the Polypipe 320 mmDiameter Inspection Chamber is shown in Figure 2,and of the Polypipe 460 mm Diameter InspectionChamber is shown in Figures 3, 5, 6 and 7.

13.2 Precautions must be taken to protect theinspection chambers, covers and frames fromdamage by construction site traffic.

13.3 The inspection chamber bases must beinstalled horizontally and bedded on a 100 mmlayer of granular material or selected as-dugmaterial (see Detail Sheet 3). If concrete is used theinspection chamber should be bedded into positionwhilst the concrete is still wet, so that it takes theshape of the inspection chamber base.

13.4 The inspection chamber bases are suppliedwith removable blanking caps which are used toseal off any unused connections. Blanking caps arealso available separately should it be necessary toblank-off more sockets in the 460 mm diameterchamber or the 450 mm by 600 mm RectangularInspection Chamber.

Figure 4 Group 1 inspection cover installation details for rectangular inspection chambers

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13.5 The 110 mm or 160 mm diameter PVC-Upipe, as appropriate, with spigot suitablychamfered, deburred, cleaned and lubricated withPolypipe silicone lubricant, is pushed fully into thesocket of the inspection chamber and withdrawnby 10 mm to allow for expansion movement.

13.6 For both the 450 mm by 600 mmrectangular chamber and the 320 mm diameterchamber it is essential that a continuous bead ofsealant to BS 5889 : 1989 is applied to thegroove of the riser prior to assembly to ensure awatertight joint is obtained.

13.7 For the 460 mm diameter chambers sealingrings are fitted into the riser grooves and the socketof the inspection chamber/riser is lubricated withPolypipe silicone lubricant to obtain a watertightjoint.

13.8 The maximum number of riser pieces fitted tothe chamber bases and the maximum invert depthsare as follows:Chamber Maximum number Maximum invert

risers depth (mm)

450 mm x 600 mm rectangular 5 1050

320 mm diameter 3 600

460 mm diameter 5 1200

13.9 The top of the uppermost riser may be cut tothe required levels.

13.10 Backfilling is carried out using granularmaterial as described in section 13.3, around andup to a level 100 mm above the inlet and outletpipes. Thereafter, selected site material free fromstones larger than 25 mm, and clay lumps largerthan 75 mm, should be placed and consolidatedaround the chamber. During backfilling, thechamber should be covered to prevent the ingressof foreign matter into the drain.

Figure 5 Group 1 inspection cover installation detailsfor 460 mm diameter inspection chambers

Figure 6 Typical installation of 460 mm diameterinspection chambers

13.11 For Group 1 load situations the inspectionchamber assembly is fitted with one of the Polypipecover and frame options and installed as shown inFigures 2, 3, 4 and 5. For Group 2 load situationsthe inspection chamber assembly is installed asshown in Figure 6 using a Group 2 cover andframe Kitemarked to BS EN 124 : 1994 (notsupplied by Polypipe Building Products).

13.12 The rectangular and 460 mm diameterchamber base units may be used as preformedbases in conventional manholes up to 6 m deepand constructed in accordance with BS EN 752-1to 4. The units should be bedded on andsurrounded with concrete suitably designed tosupport the shaft, which may be of brickwork orstandard concrete sections (see Figure 7).

13.13 If the inspection chamber is to be installedin ground where the water table may rise abovethe invert level of the chamber, the product must becompletely surrounded in concrete.

Figure 7 Typical installation of 460 mm diameterinspection chambers

concrete

concretesurround

225mmmin

300 mm min

Group 2 cover toBS EN 124 : 1994(not supplied by Polypipe)

paving material

150 mm minimum concrete aroundtop of shaft to provide bed for frame

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The following is a summary of the technicalinvestigations carried out on the Polypipe 450 mmby 600 mm Rectangular, 320 mm Diameter and460 mm Diameter Inspection Chamber System withcover and frame assemblies.

14 Tests14.1 Tests were carried out on the rectangularinspection chamber to determine:effect of thermal cycling tested in accordance with

BS 4660 : 1989, Appendix D, prior toAmendment 1

practicability of rodding the chamber usingpolypropylene drain rods with various roddingheads

practicability of drain testing using screwexpanding and inflatable stoppers at maximumpermitted depth

dimensional accuracyease of jointingwatertightness of joints under conditions of

deformation to BS 4660 : 1973, Appendix Gand angular deflection to BS 4660 : 1973,Appendix H

effect of loads on cover and frame assembly toBS 497-1 : 1976 (BS EN 124 : 1994)

angular movement, ie rocking of cover withinframe.

14.2 Tests were carried out on the 320 mmdiameter inspection chamber to determine:effect of combination of hot and cold water

discharges through the chamber whilst the coverwas subjected to a 250 kg load

practicability of rodding the chamber usingpolypropylene drain rods with various roddingheads



deformation and angular deflection.

14.3 Tests were carried out on the 460 mmdiameter inspection chamber to determine:effect of thermal cycling tested in accordance with

BS 7158 : 1989, Appendix Fpracticability of rodding the inspection chamber

using polypropylene drain rods with variousrodding heads



deformation to BS 7158 : 1989, Appendix Dand angular deflection to BS 7158 : 1987,Appendix C

effect of loads on each cover and frame assemblyof BS EN 124 : 1994

angular movement, ie rocking of cover within framespecific tangential initial stiffness of risers to

BS 7158 : 1989, Appendix G.

14.4 Material properties:Vicat softening pointmelt flow indexdensitytensile strengthenvironmental stress cracking resistancelong-term creep.

15 Other investigations15.1 An evaluation was made of existing data toassess:resistance to chemicalsenvironmental stress cracking resistancedurability.

15.2 An assessment was made of the flowcharacteristics, ease of cleaning and resistance toblockage.

15.3 The manufacturing process was examined,including the methods adopted for quality control,and details were obtained of the quality andcomposition of the materials used.

15.4 Site visits were conducted to assess thepracticability of installation and rodding.

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Bibliography

BS 497 Specification for manhole covers, roadgully gratings and frames for drainage purposesBS 497-1 : 1976 Cast iron and cast steel

BS 3416 : 1991 Specification for bitumen-basedcoatings for cold application, suitable for use incontact with potable water

BS 4660 : 1973 Specification for unplasticizedPVC underground drainpipe and fittings of nominalsizes 110 mm and 160 mm. Materials, materialcolour, dimensions, marking, sampling and tests onpipe, fittings and assemblies

BS 4660 : 1989 Specification for unplasticizedpolyvinyl chloride (PVC-U) pipes and plastics fittingsof nominal sizes 110 and 160 for below groundgravity drainage and sewerage

BS 5889 : 1989 Specification for one-part gungrade silicone-base sealants

BS 7158 : 1989 Specification for plasticsinspection chambers for drains

BS EN 124 : 1994 Gully tops and manhole topsfor vehicular and pedestrian areas — Designrequirements, type testing, marking, quality control

BS EN 681 Elastomeric seals. Materialrequirements for pipe joint seals used in water anddrainage applications

BS EN 681-1 : 1996 Vulcanized rubber


BS EN 1401 Plastics piping systems for non-pressure underground drainage and sewerage.Unplasticized poly(vinylchloride) (PVC-U)BS EN 1401-1 : 1998 Specifications for pipes,fittings and the system

BS EN 1561 : 1997 Founding — Grey cast irons

BS EN 10143 : 1993(1998) Continuously hot-dipmetal coated steel sheet and strip. Tolerances ondimensions and shape


ISO TR 7620 : 1986 Rubber materials —Chemical resistance

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Date of issue: 17th January 2002 Chief Executive

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Electronic Copy - Polypipe · In the opinion of the British Board of Agrément, The Polypipe Underground Drainage System is fit for its intended use provided it is installed, used