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I S : 8380 ( Part III ) - 1977( Reaffirmed 1992 )

Indian Standard

SPECIFICATION FOR FABRICATED HIGH

DENSITY POLYETHYLENE (HDPE) FITTINGS

FOR POTABLE WATER SUPPLIES

PART Ill SPECIFIC REQUIREMENTS FOR 90’ BENDS

( Second Reprint JANUARY 1998 )

UDC 621.643.4.062.3 : [ 678.742.2 ] : 696.115

0 Copyright 1977

BUREAU OF INDIAN STANDARDS

MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARGNEW DELHI 110002

Gr2 M ay 1977

Reaffirmed 2002

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IS : $360 ( Part III ) - 1977

I ndi an St andard

SPECIFICATION FOR FABRICATED HIGH

DENSITY POLYETHYLENE ( HDPE ) FITTINGSFOR POTABLE WATER SUPPLIES

PART III SPECIFIC REQUIREMENTS FOR 90” BENDS

Sanitary Appliances and Water Fittings Sectional Committee, BDC 3

Chairman

SHRYV. D. DESAI

Members

Refwesenting

Bombay Municipal Corporation

ADVISER Ministry of HealthSHRI B. B. RAU ( Alternate

SHR~ H. R. BADYALSHRI K. D. BISWAS ( Alternate

Indian Iron & Steel Co Ltd, Calcutta

SHRI S. P. CHAKRABARTI Central Building Research Institute ( CSIR ),Roorkee

SHRI S. K. SHARMA ( AlternateCHIEF ENGINEER Central Public Works Department, New Delhi

SUPERINTENDING ENGINEER ( Alternate )CHIEF ENGINEER Tamil Nadu Water Supply & Drainage Board,

MadrasCHIEF ENGINEER U. P. Jal Nigam, Lucknow

SUPERINTENDINGI NOIMEER ( Alternate )GRIEF ENGINEER ( WATER ) Municipal Corporation of Delhi

DRAINAQE ENQINEER ( Alternate )CITY ENGINEER Bombay Municipal Corporation

HYDRAULIC ENGINEER ( Alternate )SRRI H. N. DALLAS Indian Institute of Architects, Bombay

LALA G. C. DAS National Test House, CalcuttaSHRI T. R. DE Institution of Engineers ( India ), CalcuttaSHRI M. T. KANSE Directorate General of Supplies & Disposals

SHRI S. C. KAPOOR Delhi Development AuthoritySHRI R. V. LELE Central Glass 8~’ Ceramic Research Institrrtc( CSIR ), Calcutta

PROF N. MAJUMDER National Environmental Engineering ResearchInstitute I CSIR 1. Namur

SHRI J. M. DAVE ( AltcmnteSERI R. N. MALLICK Directorate General of Technical Development

SHRI N. R. SRINIVASAN ( Alternate )

( Continued on page 2 )

@ Copyright 1977

BUREAU OF INDIAN STANDARDSThis publication is protected under the In&a -cOprighf Act ( XIV of 1957 ) a&reproduction in whols or in part by any means except with ~written permissinn ofthe publisher shall be deemed to be an infringement of copyright under the said Act.

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IS I 8369 -( Part III ) - 1977

( Conrinucdfr om page 1 )

MCdWS Representing

SHRI R.M. MEHRA

SHRI R. N. MUKE~RJ EEBombay Potteries & Tiles Ltd, Bombay

SARI 9. K. NEOQI ( Alternate )Calcutta Metropolitan Planning Organization

SRRI D. APPUKUTTAN NAYAR Public Health Engineering Department, Governmentof Kerala, TrivandrumSHRI K. RAMACHANDRAN(Alternate )

COL RAJ KUMAR

SHRI I. S. BEDI ( Alternate )

Engineer-in-Chief’s Branch, Army Headquarters

SHRI P. S. RAJVANSHI Public Health Engineering Department, -Government

SHRI RANJ IT SINCWIof Rajasthan, J aipur

DR A. V. R. RAOMinistry qf Railways

SHRI G. T. BRIDE ( Al&n&e )National Buildings Organization, New Delhi

SBRI P. J AQANATH RAO E. I. D. Parry Ltd, MadrasSHRI T.S. CHINTAYANI (Alternate)

SARI J . L. SETHI Public Health Engineering Department, Government

of Haryana, ChandigarhSERI A. N. MEHAXDALE ( Alternate )

Sari R. K. SOMANY Hindustan Sanitaryware & Industries Ltd,

BahadurgarhSERI V. S. BHAIT ( A& mats )

SHBI D. AJ ITHA bSHA,

Director’ ( Civ Engg )Director General, BIS ( Ex-o&o Member )

Secretary

SRRI S. P. hdAWV

Assistant Director ( Civ Engg ), ISI

Plastic Pipes Subcommittee, BDC 3 : 8

C0fM?b?r

SH~I K. D. MULEKAR

MClllbUS

Bombay Municipal Corporation

S-1 S. H. MEUTRE ( Aftcrnatr toShri K. D. Mulekar )

ADVIBEB Ministry of Health

S&I V. A. ANAIQDADOW ( Aft@na& )Da B. R. C. ANAND Calico Chemicals, Plastics and Fibres Division,

&J UibaySHB~ S. MITBA ( Altemafe )

SEEI P. M. ANTE Housing & Urban Development Corporation Ltd,New Delhi

SJ XEIB. K. CEAJ SBABAIWY (-Alrmurtr )Smu S. BHWXHALIN~AM Public Health Engineering Department, Government

of Kcrala, TrivandrumSESI H. R. BUTANI Garware Plastics ( Pvt ) Ltd, Bombay

SHBI B. K. CMWLA ( Al-8 )

( Continued oa bags 6

2

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IS t 8366 ( Part III ) - 1977

Indian Standard

SPECIFICATION FOR FABRICATED HIGH

DENSITY POLYETHYLENE ( HDPE ) FITTINGS

FOR POTABLE WATER SUPPLIES

PART 111 SPECIFIC REQUIREMENTS FOR 90” BENDS

0. FOREWORD

0.1 This Indian Standard ( Part I I I ) was adopted by the Indian

Standards Institution on 17 J anuary 1977, after the draft finalized bythe Sanitary Appliances and Water Fittings Sectional Committee hadbeen approved by the Civil Engineering Division Council.

0.2 The fabricated HDPE fittings are used for connection, by weldingprocess, to HDPE pipes covered by IS : 4984-1972*.

0.3 The requirements of fabricated -HDPE fittings are covered in threeparts of this standard, Part I of the series deals with the generalrequirements applicable to all fabricated HDPE fittings, and specificrequirements of different types of fittings are covered in separate parts

of the standard. This Part II I deals with the specific requirements for90” bends.

0.4 For the purpose of deciding whether a particular requirement ofthis standard is complied with, the final values, observed or calculated,expressing the result of a test or analysis, shall be rounded off in accor-dance with IS : 2-196Ot. The number of significant places retained inthe rounded off values should be the same as that of the specified valuesin this standard.

1. SCOPE

1.1 This standard ( Part I I I ) lays down the requirements for manu-facture, dimensions and tolerances and marking for fabricated HDPE90” bends for potable water supplies.

*Specific&on for high density polyethylene pipes for potable water supplies(fist r0oiSi411)

tRutea for rounding off numerical valuea ( ruiwd ).

3

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IS : 8360 ( Part III ) - 1977

2. REQUIREMENTS

2.1 General - The general requirements for material, sizes, methodsof test and sampling shall conform to IS :8360 ( Part I )-1977*.

2.2 Manufacture2.2.1 A typical illustration of 90” fabricated bend is shown in Fig. I.

FIG. 1 90” BEND

2.2.2 Luyiag Length - The overall laying length 5 and the tolerancesthereon shall comply with those given in Table 1 read with Fig. 1.

2.2.3 The outside diameters and wall thicknesses of pipes out of which

90” bends are fabricated shall comply with those given in IS : 8360( Part I )-1977”. The wall thickness of fabricated bend shall not beless than that of the pipe to which it is to be welded.

3. MARKING

3.1 Each fabricated 90” bend fitting shall be marked with the following

information:

a) Manufacturer’s name or identification mark, and

b) The size of the fitting and the appropriate class (workingpressure ) to which the pressure rating of the fitting corresponds.

*Specification for fabricated high density polyethylene ( HDPE ) fittings for potable~watersupplies: Part I General requirements.

4

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IS: 8360 ( Part III ) - 1977

.TABLE 1 DIMENSIONS FOR COVERALL LAYI NG LE NGTH OFFABRICATED 90’ BENDS

( Clause 2.2.2 and Fig. 1 )

SIZE 90" END,%ERALL

LAYING LENQTH,~

(1) (2)

mm mm

20 loo-& 3

25 LOO-& 3

32 100 & 3

40 100% 350 lOO* 3

63 108&- 5

75 128f 5

90 154* 5

110 188 f 5

125 213 f 5

140 239 f a

160273 & 8

180 307 f 8

200 341 & 8

225 384 f 10

250 427 & 10

280 478 f 10

315 538 f 10

355 606 f 12

400 683 f 1.2

450 769 f 12

500 855 f r2

3.1.1 Each fabricated 90” bend fitting may also be marked with the

Standard mark.

3.15 The use of the Standard Mark is govered by the provisions of the

Bureau of Indian Standards Act, 1986 and the Rules and -Regulations made

thereunder. The details of conditions under which the licence for the use of

Standard Mark may be granted to manufacturers or producers may be obtainedfrom the Bureau of Indian Standards.

5

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I$ : 8360 ( Part III ) - 1977

( Continued from page S, )

Mmbcrs li%#ns~thg

SERI S. S. CBHEDA Small Scale Plastics Pipes and Fittings Manufacturers’

+sociation, Bombay

Ckulep ENOINEIM Tarniapau Water Supply & Drainage Board,

CHIEF ENGINEEB U. P. Jal Nigam, Lucknow

SUPERINTENDINO ENQINEE~~ Alternate )

C~IEP ENQINEER ( WATTS ) Municipal Corporation of Delhi

DEPUTY CEIEI ENGINEER( WATER ) ( Altematc )

SRXI J . M. DAVE National Environmental Engineering Research

Institute, Nagpur

SHRI R. PARAMASIVA~~ Alternate )

SERI S. K. DEY EMCO General ( Plastic ) Industries (P) Ltd,Calcutta

SRRI R. K. JAIN Central Building Research Institute ( CSIR ),

RoorkeeSERI S. P. CEAKRABARTI ( Alternate )

SHRI A. R. KANGA City & Industrial Development Corporation Ltd,Bombay

Dn S. L. KAPUR National Chemical Laboratory ( CSIR ), PuneSBRI A. E. LADHABHOY Imperial Chemical Industries ( India ) Ltd, Calcutta

DR V. B. V. RAJ AN ( AkrnatmSHRI U. S. MAJ MUNDAR t nion Carbide India Ltd, Calcutta

SRRI S. P. KHURANA ( Alternate )

k. PARIKSHIT Directorate General of Technical Development

SHIU G. S. RAO Central Public Works Department

SERI K. C. S. RAO Ministry of Defence

MAJ S. K. AQQARWAL ( Alternate )

SSRI P. B. RAO Polyolefins Industries Ltd, Bombay

Sam V. DORAIRAJ (Ahnatc )

SRRI 0. P. RATRA National Buildings Organiaation, New Delhi

REPRESENTATIVB Public Health Engineering Department, Governmentof Haryana, Chandigarh

SHRI R. SIVARAMAKRISHNAN Chemicals & Plastics ( India ) Ltd, Madras

SEEI R. KALIDA~ ( dbdmat# )

SERI G. K. SRINI~A~A~ Wavin India Ltd, Madras

SBRI K. R. RANQAIUJAN ( AILmate )

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BUREAU OF INDIAN STANDARDS

Headquarters:

Manak Bhavan, 9 Bahadur Shah Zafar Marg, NEW DELHI 110002

Telephones: 323 0131,323 3375,323 9402

Fax : 91 11 3234062, 91 11 3239399, 91 11 3239382

Central Laboratory :

Plot No. 20/9, Site IV, Sahibabad Industrial Area, Sahibabad 201010

Regional Off ices:

Telegrams : Manaksanstha

(Common to all Offices)

Telephone

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Central : Manak Bhavan, 9 Bahadur Shah Zafar Marg, NEW DELHI 110002 32376 17

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*Sales Cffice is at 5 Chowringhee Approach, P.O. Princep Street, 271085

CALCUTTA 700072

tSales Office is at Novelty Chambers, Grant Road, MUMBAI 400007

*Sales Cffice is at ‘F’ Block, Unity Building, Narashimaraja Square,

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309 65 28

222 39 71

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