Bsen 1452-3 115e5y

BRITISH STANDARD

Plastics piping systems for water supply Ð Unplasticized poly (vinyl chloride) (PVC-U) Ð Part 3: Fittings

The European Standard EN 1452-3:1999 has the status of a British Standard

ICS 23.040.45; 91.140.60

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| BS EN | | | 1452-3:2000 | | | | Incorporating | Corrigenda | | Nos. 1 and 2 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |

BS EN 1452-3:2000 --`,`,-`-`,,`,,`,`,,`---

National foreword This British Standard is the official English language version of EN 1452-3:1999. Collectively, Parts 1, 2, 3, 4 and 5 of BS EN 1452 supersede BS 3505:1986, BS 4346-1:1969 and BS 4346-2:1970. Since those British Standards are the basis of piping systems with a design life of at least 50 years, it is intended that they will be declared obsolescent, by 26 June 2001. Collectively, Parts 1 to 5 of BS EN 1452 also partially supersede BS 4346-3:1982, which will be withdrawn or amended by 26 June 2001 to exclude requirements for ts for pressure pipes for water supply. NOTE 1 The UK Water industry has indicated that this British Standard is to be regarded as superseding the following Water Industry Specifications WIS 4-31-06, Issue 2: March 1994 Blue unplasticised PVC pressure pipes, integral ts and post-formed bends for cold potable water (underground use) WIS 4-31-07, Issue 2: March 1994 Unplasticised PVC pressure fittings and assemblies for cold potable water (underground use)

The UK participation in its preparation was entrusted by Technical Committee PRI/61, Plastics piping systems and components, to Subcommittee PRI/61/2, Thermoplastics piping systems and components for pressure applications, which has the responsibility to: Ð aid enquirers to understand the text; Ð present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; Ð monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this subcommittee can be obtained on request to its secretary. The responsible UK committtee gives the following advice concerning the selection and installation of piping systems and components conforming to this British Standard. a) Water supply companies and other entities are obliged to use Parts 1 to 5 of this suite of European Standards, produced under EC/U mandate, if they wish to purchase PVC-U pipe systems or components within its scope. NOTE 2 Parts 6 and 7 have each been prepared as an ENV (pre-standard), to allow further development, and their use is voluntary unless invoked contractually.

b) The range of nomimal diameters, dn, covered by EN 1452-3 extends from 12 to 710 inclusive. UK water company purchasers may wish to note that when the industry adopted the metric ISO fitting dimensions (as used in BS EN 1452-3) in 1990, for WIS 4-31-07 (withdrawn), it was decided to rationalize on six nominal diameters, specifically 63, 90, 110, 160, 200, 250 and 315 ( out of a possible 27 diameters). This decision was reconfirmed in 1994. This British Standard, having been prepared under the direction of the Sector Committee for Materials and Chemicals, was published under the authority of the Standards Committee and comes into effect on 15 May 2000  BSI 10-2000

Amendments issued since publication Amd. No.

Date

Comments

11012 July 2000 Corrigendum No. 1

Indicated by a sideline

12006 October Corrigendum No. 2 2000

Correction to National foreword supersession details

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BS EN 1452-3:2000

Purchasers still wishing to order imperial (inch)-sized fittings should refer to normative annex A. c) In Table 1, since reference is made to a specific type of end cap as specified in the current edition of EN 921, the UK Technical Committee considers that the reference here and in clause 2 should be to EN 921:1994. d) Whereas previously either blue or grey fittings were acceptable in accordance with WIS 4-31-07 for use in conjunction with blue metric PVC-U pipes, EN 1452-3, 5.2 requires fittings to be grey, except where the fittings are fabricated from blue (or cream) pipe. e) In 6.3.2 and Figure 2, reference is made to a 45Ê tee. In the UK this would usually be described as a ªbranch fittingº. f) Attention is drawn to 6.3.2 where the use in the text and figures of ªZ-lengthº with an upper case ªZº for the symbol is not covered by the definitions/symbols/abbreviations clause in this standard or in EN 1452-1 and is inconsistent with that established by ISO 265-1:1988, which uses a lower case ªzº for this purpose. Its use in this standard is inconsistent, because in figures where comparison with other symbols such as ªrº, ªdnº or ªLº is possible a lower case ªzº is usually found. The UK Technical Committee considers that the lower case italic ªzº should be used consistently for the laying length (z-length). g) In 6.3.2.1, for calculation of the Z-length of a 45Ê tee, the equation introduces a symbol ªtº for which no definition or units are defined in this clause or in the definitions and symbols clause of this standard or in EN 1452-1:1999 or EN 1452-2:1999. Generally in plastics piping standards the basic symbol ªtº is used to signify a period of time, but in this case it would seem to be either an angle or a length. h) In 6.3.2.1, and in Figures 3 to 6 , the symbol ªrº is used for the radius of a bend. However, in Figures 9 and 10, the symbol ªrº is used in a conventional fashion for the radius at a change of surface profile, thus resulting in a conflict of meanings for this symbol within this standard. The UK Technical Committee has recommended that to resolve this conflict the symbol ªrBº should be used for the radius of a bend. i) For Table 11, attention is drawn to the note at the end of 6.5.2, which states that the values for Lmin given in Table 11 are for guidance, which is not apparent from the headings or notes within Table 11. j) In 6.5.4, the requirements place no limit on the minimum wall thickness for a sealing ring groove. The UK Technical Committee considers that the requirements should be no less stringent than those applied for integral pipe sockets in EN 1452-2:1999, 6.6.2, i.e. not less than 0,8 times the minimum wall thickness of the connecting pipe. The UK Technical Committee recommends however that the minimum wall thickness of the sealing ring groove should be not less than the nominal (minimum) wall thickness for the pipe. This may be achieved by e.g. local thickening of the socket wall or by using an external sleeve. k) Through clause 9 and Table 21, the examination of razor-cut surfaces for defects following oven testing (introduced in WIS 4-31-07) has been adopted in EN 1452-3. l) For the purposes of note 2 to Table 21, Figure 21 is unclear as to what sets the position of either boundary for zone ªLº for a ring gate. It is also not clear whether the ªmaximum value of 50 mmº applies to the total length for inspection in respect of a diaphragm gate or to each diamension ªLº, i.e. as shown in Figure 21 is the maximum overall length for inspection 50 mm or 100 mm? m) In Table 21, because of the specific reference to method A as specified in the current edition of EN 763, the UK Technical Committee considers that the reference here and in clause 2 should be taken to mean EN 763:1994. The UK Technical Committee requests opinions on whether and how clarification may be necessary to avoid differences of interpretation or conflict of results.

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 BSI 10-2000

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BS EN 1452-3:2000

Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled ªInternational Standards Correspondence Indexº, or by using the ªFindº facility of the BSI Standards Electronic Catalogue. WARNING This British Standard, which is identical with EN 1452-3:1999, does not necessarily detail all the precautions necessary to meet the requirements of the Health and Safety at Work etc. Act 1974 and subsequent regulations. Attention should be paid to any appropriate safety precautions and the test methods should be performed only by trained personnel.

A British Standard does not purport to include all the necessary provisions of a contract. s of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations.

Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 42, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Sidelining in this document indicates the most recent changes by amendment.


 BSI 10-2000

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Regulation 25 of the Water Supply (Water Quality) Regulations 1989 specified the circumstances in which Water Utilities must introduce water fittings in with public water supplies in England and Wales. Regulations 25(1)(b) permits Water Utilities to make unapproved use of small surface area products such as fittings. Nevertheless, Water Utilities have to ensure that the fitting complies with BS 6920 or equivalent national standard in order to ensure that its use will not cause adverse effect on water quality or risk to health of consumers. Similar provisions apply in Scotland and Northern Ireland.

EN 1452-3

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM

June 1999

ICS 23.040.45

English version

Plastics piping systems for water supply – Unplasticized poly(vinyl chloride) (PVC-U) – Part 3: Fittings Systèmes de canalisations en plastique pour alimentation en eau – Poly(chlorure de vinyle) non plasticifié (PVC-U) Partie 3: Raccords

Kunststoff-Rohrleitungssysteme für die Wasserversorgung – Weichmacherfreies Polyvinylchlorid (PVC-U) – Teil 3: Formstücke

This European Standard was approved by CEN on 2 July 1998. CEN are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, , , Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG

Central Secretariat: rue de Stassart, 36

© 1999 CEN

B-1050 Brussels

All rights of exploitation in any form and by any means reserved worldwide for CEN national . --`,`,-`-`,,`,,`,`,,`---


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Ref. No. EN 1452-3:1999 E

Page 2 EN 1452-3:1999

Contents Page Foreword........................................................................................................................................................... 4 Introduction ...................................................................................................................................................... 5 1 Scope ........................................................................................................................................................... 6 2 Normative references ................................................................................................................................. 6 3 Definitions, symbols and abbreviations ................................................................................................... 7 3.1 Definitions .................................................................................................................................................. 7 3.2 Symbols...................................................................................................................................................... 7 4 Material......................................................................................................................................................... 8 4.1 4.2 4.3 4.4 4.5

Fitting material............................................................................................................................................ 8 MRS-value.................................................................................................................................................. 8 Designation of fittings material ................................................................................................................... 8 Strength of injection-moulded material ...................................................................................................... 8 Material strength of fittings made from pipe............................................................................................... 9

5 General characteristics ............................................................................................................................ 10 5.1 Appearance.............................................................................................................................................. 10 5.2 Colour....................................................................................................................................................... 10 5.3 Opacity ..................................................................................................................................................... 10 6 Geometrical characteristics ..................................................................................................................... 10 6.1 6.2 6.3 6.4 6.5 6.6

Measurement of dimensions.................................................................................................................... 10 Nominal diameters ................................................................................................................................... 10 Fittings for solvent cementing .................................................................................................................. 10 Flange adapters and flanges.................................................................................................................... 19 Elastomeric ring seal fittings .................................................................................................................... 22 End-load-bearing double-sockets with elastomeric seals ........................................................................ 33

7 Classification and operating conditions................................................................................................. 34 7.1 Classification ............................................................................................................................................ 34 7.2 Determination of the allowable operating pressure PFA for water up to 45 °C........................................ 34 8 Mechanical characteristics ...................................................................................................................... 35

9 Physical characteristics ........................................................................................................................... 36 10 Chemical characteristics........................................................................................................................ 37 11 Sealing rings............................................................................................................................................ 37 12 Adhesives ................................................................................................................................................ 37 13 Performance requirements .................................................................................................................... 37 14 Marking .................................................................................................................................................... 37 © BSI 10-2000 Copyright British Standards Institution Provided by IHS under license with BSI No reproduction or networking permitted without license from IHS

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8.1 Resistance to internal pressure of fittings or parts of fittings ................................................................... 35 8.2 Crushing test ............................................................................................................................................ 35

Page 3 EN 1452-3:1999 14.1 General .................................................................................................................................................. 37 14.2 Minimum required marking .................................................................................................................... 37 14.3 Additional marking.................................................................................................................................. 38 Annex A (normative) Imperial(inch)-sized fittings....................................................................................... 39

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Annex B (informative) Bibliography.............................................................................................................. 42

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Page 4 EN 1452-3:1999

Foreword This European Standard has been prepared by Technical Committee CEN/TC 155, Plastics piping systems and ducting systems, the Secretariat of which is held by NNI. It has been prepared with the cooperation of Eureau and in liaison with CEN/TC 164, Water supply. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by December 1999, and conflicting national standards shall be withdrawn at the latest by June 2001. This European Standard has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and s essential requirements of EU Directive(s). According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, , , Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. This standard forms part of a System Standard for plastics piping systems of a particular material for a specified application. There are a number of such System Standards. System Standards are based on the results of the work undertaken in ISO/TC 138, Plastics pipes, fittings and valves for the transport of fluids, which is a Technical Committee of the International Organization for Standardization (ISO). They are ed by separate standards on test methods to which references are made throughout the System Standard. The System Standards are consistent with general standards on functional requirements and on recommended practice for installation. EN 1452 consists of the following Parts, under the general title, Plastics piping systems for water supply — Unplasticized poly(vinyl chloride) (PVC-U): Part 1: Part 2: Part 3: Part 4: Part 5: Part 6: Part 7:

General; Pipes; Fittings (this standard); Valves and ancillary equipment; Fitness for purpose of the system; Guidance for installation (ENV); Guidance for the assessment of conformity (ENV).

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-

This part of EN 1452 includes the following annexes: - Annex A (normative):

Imperial(inch)-sized fittings;

- Annex B (informative):

Bibliography.

At the date of publication of this standard, System Standards for piping systems of other plastics materials used for the same application are the following: NOTE

All listed System Standards have reached the Enquiry stage or are in preparation.

EN 1796, Plastics piping systems for water supply with or without pressure — Glass-reinforced thermosetting plastics (GRP) based on polyester resin (UP); EN 12201, Plastics piping systems for water supply — Polyethylene (PE).


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Page 5 EN 1452-3:1999

Introduction The System Standard, of which this is Part 3, specifies the requirements for a piping system and its components made from unplasticized poly(vinyl chloride) (PVC-U). The piping system is intended to be used for water supply. In respect of potential adverse effects on the quality of water intended for human consumption, caused by the products covered by this standard: 1)

this standard provides no information as to whether the product may be used without restriction in any of the Member States of the EU or EFTA;

2)

it should be noted that, while awaiting the adoption of verifiable European criteria, existing national regulations concerning the use and/or the characteristics of this product remain in force.

For material and components, other than fittings, requirements and test methods are specified in Part 1, Part 2 and Part 4 of the System Standard. Characteristics for fitness for purpose (mainly for ts) are covered in Part 5. Guidance for installation is given in ENV 1425-6. ENV 1452-7 covers guidance for the assessment of conformity. This part of EN 1452 covers the characteristics of fittings.


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Page 6 EN 1452-3:1999

1

Scope

This part of EN 1452 specifies the characteristics of fittings made from unplasticized poly(vinyl chloride) (PVC-U) for piping systems in the field of water supply. It also specifies the test parameters for the test methods referred to in this standard. In conjunction with Parts 1, 2, and 5 of EN 1452 and ENV 1452-7 it is applicable to PVC-U fittings and to ts with components of PVC-U, other plastics and non-plastics materials intended to be used for the following: a)

water mains and services buried in ground;

b)

conveyance of water above ground for both outside and inside buildings;

for the supply of water under pressure at approximately 20 °C (cold water) intended for human consumption and for general purposes. This standard is also applicable to fittings for the conveyance of water up to and including 45 °C. For temperatures between 25 °C and 45 °C figure A.1 in annex A of EN 1452-2:1999 applies. Depending on the ting method, this standard is applicable to the following types of fittings: - fittings for solvent cementing; - elastomeric ring seal fittings. This standard is applicable to PVC-U flange adapters and to the corresponding flanges made from various materials. PVC-U fittings can be manufactured by injection-moulding and/or be fabricated from pipe. NOTE

2

Fittings for mechanical ts, made from various materials are described in ENV 1452-6.

Normative references

This standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. prEN 496, Plastics piping and ducting systems — Plastics pipes and fittings — Measurement of dimensions and visual inspection of surfaces EN 578, Plastics piping systems — Plastics pipes and fittings — Determination of the opacity EN 727, Plastics piping and ducting systems — Thermoplastics pipes and fittings — Determination of Vicat softening temperature (VST) EN 763, Plastics piping and ducting systems — Injection-moulded thermoplastics fittings — Test method for visually assessing effects of heating EN 802, Plastics piping and ducting systems — Injection-moulded thermoplastics fittings for pressure piping systems — Test method for maximum deformation by crushing EN 921, Plastics piping systems — Thermoplastics pipes — Determination of resistance to internal pressure at constant temperature EN 1452-1, Plastics piping systems for water supply — Unplasticized poly(vinyl chloride) (PVC-U) — Part 1: General EN 1452-2:1999, Plastics piping systems for water supply — Unplasticized poly(vinyl chloride) (PVC-U) — Part 2: Pipes EN 1452-5, Plastics piping systems for water supply — Unplasticized poly(vinyl chloride) (PVC-U) — Part 5: Fitness for purpose of the system ENV 1452-7, Plastics piping systems for water supply — Unplasticized poly(vinyl chloride) (PVC-U) — Part 7: Guidance for the assessment of conformity © BSI 10-2000

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Page 7 EN 1452-3:1999 EN 12107, Plastics piping systems — Injection-moulded thermoplastics fittings, valves and ancillary equipment — Determination of the long-term hydrostatic strength of thermoplastics materials for injectionmoulding of piping components EN ISO 12162, Thermoplastics materials for pipes and fittings for pressure applications — Classification and designation — Overall service (design) coefficient (ISO 12162:1995) EN ISO 13783:1997, Plastics piping systems — Unplasticized poly(vinyl chloride) (PVC-U) end-load bearing double socket ts - Test method for leaktightness and strength while subjected to bending and internal pressure ISO/TR 9080:1992, Thermoplastics pipes for the transport of fluids — Methods of extrapolation of hydrostatic stress rupture data to determine the long-term hydrostatic strength of thermoplastics pipe materials ISO/DIS 12092:1994, Fittings, valves and other piping system components of unplasticized poly(vinyl chloride) (PVC-U) for pipes under pressure — Resistance to internal pressure — Test method

3

Definitions, symbols and abbreviations

For the purposes of this standard, the definitions, symbols and abbreviations given in EN 1452-1 apply, together with the following.

3.1

Definitions

3.1.1 laying length (Z-length) a) Laying length of fittings and valves with angled outlets: for socketed outlet, the laying length is the distance from the inserted tube or spigot end to the intersection point of the fitting/valve axis (fitting or valve centre);

2)

for spigot outlet, the laying length is the distance from the outlet end to the intersection point of the fitting/valve axis (fitting or valve centre).

Laying length of fittings and valves with parallel outlets: 1)

in the case of sockets, the laying length is the distance between the ends of the inserted tubes or spigots;

2)

in the case of one socket and one spigot, the laying length is the distance from the inserted tube or spigot end to the end of the spigot outlet.

3.1.2 design length of bends (Zd-length) The length of an outlet, excluding any socket length or insert length of spigot.

3.2

Symbols

Z

:

Laying length (Z-length)

Zd

:

Z-design length (Zd-length)

r

:

bend radius


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b)

1)

Page 8 EN 1452-3:1999

4 Material 4.1

Fitting material

The fitting material to be used shall conform to EN 1452-1 and to the requirements given in 4.2 to 4.5 of this standard.

4.2

MRS-value

The fittings material shall be evaluated according to ISO/TR 9080:1992 method II 1), where the pressure test is made in accordance with EN 12107 (together with EN 921), to find the LCL. The MRS-value shall be derived from the LCL and the fitting material shall be classified by the compound manufacturer in accordance with EN ISO 12162. --`,`,-`-`,,`,,`,`,,`---

Where there is available long-term experience with the effect of a change in material/compound, it is not necessary to re-evaluate the MRS. In this case the values determined with 5 test pieces at 20 °C and 60 °C during 1000 h to 5000 h shall be located on or above the 97,5 % LCL long-term characteristic curve established prior to the material/compound change.

4.3

Designation of fittings material

The fittings material shall be designated as PVC-U, unless the material has an MRS of not less than 25 MPa, in which case the material shall be designated as PVC-UH.

4.4

Strength of injection-moulded material

When pressure tested in accordance with the procedure described in EN 12107, using injection-moulded tubular test pieces conforming to figure 1, the material shall conform to the requirements given in table 1.

Figure 1 — Free length, lo, of injection-moulded test pieces

1) In ISO/TC 138/SC 5 a new extrapolation method is under development, which is intended to replace ISO/TR 9080. © BSI 10-2000 Copyright British Standards Institution Provided by IHS under license with BSI No reproduction or networking permitted without license from IHS

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Page 9 EN 1452-3:1999 Table 1 ¾ Material characteristics Characteristic

Requirements

Test parameters Parameter

Long-term strength

No break during the test period

Diameter Free length (see figure 1) Wall thickness Test temperature Sampling procedure Number of test pieces Circumferential (hoop) stress Type of test Type of end caps Test period

4.5

Value dn ³ 50 mm l0 ³ 3 dn *) en of pipe series 6,3 £ S £ 10 60 °C Shall conform to ENV 1452-7 Shall conform to ENV 1452-7 10,0 MPa

EN 12107 (together with EN 921)

Water-in-water type a) ³ 1000 h

For the dn of 50 mm a minimum free length of 140 mm may be used.

Material strength of fittings made from pipe

If the fitting is made from pipe, the pipe material shall conform to EN 1452-2:1999.


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*)

Test method

Page 10 EN 1452-3:1999

5

General characteristics

5.1

Appearance

When viewed without magnification, the internal and external surfaces of fittings shall be smooth, clean and free from scoring, cavities and other surface defects to an extent that would prevent conformity to this standard. --`,`,-`-`,,`,,`,`,,`---

Each end of a fitting shall be square to its axis.

5.2

Colour

The colour of injection-moulded fittings shall be grey throughout the wall. The colour of fittings made from pipes shall be grey, blue or cream throughout the wall. For above ground application, cream fittings shall not be used.

5.3

Opacity

The wall of the fittings shall be opaque and shall not transmit more than 0,2 % of visible light when measured in accordance with EN 578. This requirement does not apply to cream fittings (see 5.2).

6

Geometrical characteristics

6.1

Measurement of dimensions

Dimensions shall be measured in accordance with prEN 496.

6.2

Nominal diameters

The nominal inside diameter(s), dn, of a fitting shall correspond to, and be designated by, the nominal outside diameter(s) of the pipe(s) for which the fitting is designed.

6.3

Fittings for solvent cementing

6.3.1 Socket and spigot dimensions The socket dimensions of the fittings shall be the same as for sockets on pipes and shall conform to EN 1452-2:1999. The spigot length(s) shall be at least equal to the corresponding socket length(s). The tolerance on the diameter of the spigot ends, d2, of reducing bushing (see table 7 and table 8) shall always be positive and be as follows: - maximum 0,2 mm for diameters equal to or less than 90 mm; - maximum 0,3 mm for diameters 110 to 160 mm; - maximum 0,4 mm for diameters 180 to 225 mm; - maximum 0,5 mm for diameters 250 to 315 mm.


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Page 11 EN 1452-3:1999 6.3.2 Diameters, laying lengths, bend radii and angles 6.3.2.1 For the following types of injection-moulded fittings the Z-lengths shall be calculated using one of the following equations as applicable, where a is the angle of the elbow and r is the radius of the bend.

a) 90° elbows, 90° tees (see table 2):

Z=

dn +1 2

b) 45° elbows (see table 2):

Z=

dn α tan + 1 2 2

c) 45° tee (see table 2):

Z=

dn α cot + t 2 2

with

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Z1 =

dn

t

£ 90 110 125 140 160

3 4 6 6 7

dn α tan + 1 2 2

d) Bends (see table 3)

Z = r = 2dn

e) Short bends (see table 6)

Z = r = 0,75dn

f) Reducing bushes long (see table 7)

Z = 0,75 d2 + 6

g) Reducing bushes short (see table 8)

æd ö æd ö Z = ç 2 + 6÷ - ç 1 + 6÷ 2 2 è ø è ø

The calculated values are given in table 2 to table 8. The calculated values may be adapted by the manufacturer. The manufacturer's information (e.g. catalogues) shall state the exact value(s) of the Z-length(s). NOTE The deviation from the calculated values are recommended to be not greater than the values given in the table 2, table 3, table 6, table 7 and table 8 as applicable.

6.3.2.2 For bends made from pipe the Z-design-lengths, Zd, and the bend radii shall be equal to or greater than the values given in table 4 and table 5, as applicable. NOTE

The Zd-lengths are always greater than the corresponding socket lengths.

The wall thickness in the bend area of bends made from pipe shall be not less than the specified minimum wall thickness for the corresponding pipe given in EN 1452-2:1999. NOTE

If needed the next pipe series with the smaller S-number can be used.

6.3.2.3 Other fittings, in particular adapter- and connection-fittings, are shown in ENV 1452-6. 6.3.2.4 Figures and tables for fittings for solvent cementing


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Page 12 EN 1452-3:1999 Type of fitting

Figure 2 — Elbows, tees and double-sockets

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Page 13 EN 1452-3:1999 Table 2 ¾ Calculated Z-lengths and recommended deviations for elbows, tees and double-sockets (see figure 2) Dimensions in millimetres

Nominal

Calculated Z-length and recommended deviations

diameter

Type of fitting 45° elbow

90° tee

Z

Z

Z

dn

45° tee

Doublesocket

Z

Z1

Z

12

7

±1

3,5

±1

7

±1

--

--

3

±1

16

9

±1

4,5

±1

9

±1

--

--

3

±1

20

11

±1

5

±1

11

±1

27

±3

13,5

+1,2 -1

6

+1,2 -1

13,5

+1,2 -1

33

±3

17

+1,6 -1

7,5

+1,6 -1

17

+1,6 -1

42

21

+2 -1

9,5

+2 -1

21

+2 -1

26

+2,5 -1

11,5

+2,5 -1

26

32,5

+3,2 -1

14

+3,2 -1

38,5

+4 -1

16,5

46

+5 -1

56

25 32 40 50 63 75 90 110 125 140 160 180 200 225

6

+2 -1

3

±1

7

+2 -1

3

+1,2 -1

+4 -3

8

+2 -1

3

+1,6 -1

51

+5 -3

10

+2 -1

3

+2 -1

+2,5 -1

63

+6 -3

12

+2 -1

3

+2 -1

32,5

+3,2 -1

79

+7 -3

14

+2 -1

3

+2 -1

+4 -1

38,5

+4 -1

94

+9 -3

17

+2 -1

4

+2 -1

19,5

+5 -1

46

+5 -1

112

+11 -3

20

+3 -1

5

+2 -1

+6 -1

24

+6 -1

56

+6 -1

137

+13 -4

24

+3 -1

6

+3 -1

63,5

+6 -1

27

+6 -1

63,5

+6 -1

157

+15 -4

27

+3 -1

6

+3 -1

71

+7 -1

30

+7 -1

71

+7 -1

175

+17 -5

30

+4 -1

8

+3 -1

81

+8 -1

34

+8 -1

81

+8 -1

200

+20 -6

35

+4 -1

8

+4 -1

91

+8 -1

39

+8 -1

91

+8 -1

--

--

8

+4 -1

101

+9 -1

43

+9 -1

101

+9 -1

--

--

8

+5 -1

114

+10 -1

48

+10 -1

114

+10 -1

--

--

10

+5 -1

53

+10 -1

126

+10 -1

--

--

12

+5 -2

59

+10 -1

141

+10 -1

--

--

12

+5 -2

63

+10 -1

159

+10 -1

--

--

14

+5 -2

250

--

280

--

315

--


Not for Resale

--`,`,-`-`,,`,,`,`,,`---

90° elbow

Page 14 EN 1452-3:1999

Figure 3 — Bends, injection-moulded Table 3 ¾ Calculated Z-lengths and recommended deviations for bends, injection-moulded (see figure 3) Dimensions in millimetres

Calculated Z-lengths and recommended deviations

Nominal diameter dn 12 24

16 ±1

32

20 ±1

40

25 ±1

32 +1,2 -1

50

40 +1,6 -1

64

50 +2 -1

80

+2,5 -1

100


75 +3,2 -1

150

90 +4 -1

180

110 +5 -1

220

125 +6 -1

250

140 +6 -1

280

160 +7 -1

320

+8 -1

Figure 4 — Bends made from pipes

© BSI 10-2000 --`,`,-`-`,,`,,`,`,,`---


Not for Resale

Page 15 EN 1452-3:1999 Table 4 ¾ Calculated minimum bend radii and minimum design lengths for bends made from pipes (see figure 4) Dimensions in millimetres

Nominal diameter

Minimum design length. 2) Zd,min Angle (=)

Minimum bend radius

rmin 1)

11°

22°

63 75 90 110

221 263 315 385

46 55 66 81

68 81 97 119

84 100 120 147

117 139 166 203

153 182 218 266

246 293 351 429

125 140 160 180

438 490 560 630

92 103 118 133

135 151 173 194

167 187 214 241

231 259 296 333

303 339 387 436

488 546 624 702

200 225 250 280

700 788 875 980

147 166 184 206

216 243 270 302

268 301 334 375

370 416 462 518

484 545 605 678

780 878 975 1092

315 355 400 450

1103 1243 1400 1575

232 262 295 332

340 384 432 486

421 475 535 602

583 656 740 832

763 859 968 1089

1229 1385 1560 1755

500 560 630

1750 1960 2205

369 413 464

540 605 681

669 749 843

925 1036 1165

1210 1356 1525

1950 2184 2457

dn

--`,`,-`-`,,`,,`,`,,`---

1)

30°

45°

rmin is calculated using the equation: rmin = 3,5dn.

= 2) Z d,min is calculated using the equation: Zd,min = (3,5dn ´ tan ) + 0,4dn. 2

Figure 5 — Short bends made from pipes


Not for Resale

60°

90°

Page 16 EN 1452-3:1999 Table 5 ¾ Calculated minimum bend radii and minimum design lengths for short bends made from pipes (see figure 5) Dimensions in millimetres

Minimum bend radius

dn

rmin 1)

11°

22°

30°

45°

60°

90°

63 75 90 110 125

157 187 225 275 312

31 37 44 54 61

46 55 66 81 92

58 69 83 101 115

81 96 116 141 161

107 127 152 186 212

173 206 248 303 344

140 160 180 200 225

350 400 450 500 562

69 79 88 98 110

103 118 133 147 166

129 147 166 184 207

180 206 231 257 289

237 271 305 339 381

385 440 495 550 619

250 280 315 355 400

625 700 787 887 1000

123 137 155 174 196

184 206 232 261 294

230 258 290 327 368

321 360 405 456 514

423 474 533 601 677

688 770 866 976 1100

450 500 560 630

1125 1250 1400 1575

221 245 275 309

331 368 412 464

414 460 515 580

578 643 720 810

762 847 948 1067

1238 1375 1540 1733

1) r min is calculated using the equation: rmin = 2,5dn.

= 2) Z ) + 0,25dn. d,min is calculated using the equation: Zd,min = (2,5dn ´ tan 2

Figure 6 — Short bends, injection-moulded


Not for Resale

--`,`,-`-`,,`,,`,`,,`---

Nominal diameter

Minimum design length. 2) Zd,min Angle (= =)

Page 17 EN 1452-3:1999 Table 6 ¾ Calculated Z-lengths and recommended deviations for short bends, injection-moulded (see figure 6) Dimensions in millimetres

Calculated laying length, Z, and recommended deviations


160 +7 -1

NOTE

120

180 +8 -1

135

200 +8 -1

150

225 +9 -1

168

250 +9 -1

187

280 +9 -1

210

Other designs of reducing bushes are allowed.

Figure 7 — Reducing bushes, long and example of application

© BSI 10-2000 --`,`,-`-`,,`,,`,`,,`---


Not for Resale

315 +10 -1

236

+10 -1

Page 18 EN 1452-3:1999 Table 7 ¾ Calculated Z-lengths and recommended deviations for reducing bushes, long (see figure 7) Dimensions in millimetres

Nominal

12

16

20

diameter

25

32

40

50

63

75

90

110

125

140

160

Recommended deviations for Z-lengths ±1

± 1,5

d1

±2

Calculated Z-lengths

12

-

18

21

25

30

-

-

-

-

-

-

-

-

-

16

-

-

21

25

30

36

-

-

-

-

-

-

-

-

20

-

-

-

25

30

36

44

-

-

-

-

-

-

-

25

-

-

-

-

30

36

44

54

-

-

-

-

-

-

32

-

-

-

-

-

36

44

54

62

-

-

-

-

-

40

-

-

-

-

-

-

44

54

62

74

-

-

-

-

50

-

-

-

-

-

-

-

54

62

74

88

-

-

-

63

-

-

-

-

-

-

-

-

62

74

88

100

-

-

75

-

-

-

-

-

-

-

-

-

74

88

100

111

-

90

-

-

-

-

-

-

-

-

-

-

88

100

111

126

110

-

-

-

-

-

-

-

-

-

-

-

100

111

126

125

-

-

-

-

-

-

-

-

-

-

-

-

111

126

140

-

-

-

-

-

-

-

-

-

-

-

-

-

126

Figure 8 — Reducing bushes, short


Not for Resale

--`,`,-`-`,,`,,`,`,,`---

socket

Nominal diameter of spigot d2

Page 19 EN 1452-3:1999 Table 8 ¾ Calculated Z-lengths and recommended deviations for reducing bushes, short (see figure 8) Dimensions in millimetres Nominal socket

Calculated Z-lengths 1)

diameter

Nominal diameter of spigot d2

--`,`,-`-`,,`,,`,`,,`---

d1

12

16

20

25

32

40

50

63

75

90

110

125

140

160

180

200

225

250

280

315

12

-

2

4

6,5

10

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

16

-

-

2

4,5

8

12

-

-

-

-

-

-

-

-

-

-

-

-

-

-

20

-

-

-

2,5

6

10

15

-

-

-

-

-

-

-

-

-

-

-

-

-

25

-

-

-

-

3,5

7,5

12,5

19

-

-

-

-

-

-

-

-

-

-

-

-

32

-

-

-

-

-

4

9

15,5 21,5

-

-

-

-

-

-

-

-

-

-

-

40

-

-

-

-

-

-

5

11,5 17,5

25

-

-

-

-

-

-

-

-

-

-

50

-

-

-

-

-

-

-

6,5

12,5

20

30

-

-

-

-

-

-

-

-

-

63

-

-

-

-

-

-

-

-

6

13,5 23,5

31

-

-

-

-

-

-

-

-

75

-

-

-

-

-

-

-

-

-

7,5

17,5

25

32,5

-

-

-

-

-

-

-

90

-

-

-

-

-

-

-

-

-

-

10

17,5

25

35

-

-

-

-

-

-

110

-

-

-

-

-

-

-

-

-

-

-

7,5

15

25

35

-

-

-

-

-

125

-

-

-

-

-

-

-

-

-

-

-

-

7,5

-

-

-

-

140

-

-

-

-

-

-

-

-

-

-

-

-

-

10

20

30

42,5

-

-

-

160

-

-

-

-

-

-

-

-

-

-

-

-

-

-

10

20

32,5

45

-

-

180

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

10

22,5

35

50

-

200

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

12,5

25

40

57,5

225

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

250

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

15

32,5

280

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

17,5

17,5 27,5 37,5

12,5 27,5

45

1) The recommended deviations are ± 1 mm.

6.4 6.4.1

Flange adapters and flanges Adapters for backing flange

Adapters for PN 10 and PN 16 flanges shall conform to the dimensions given in table 9 where the dimensions d1, Z, Z1, and r are as indicated in figure 9. NOTE

These dimensions have been chosen to ensure practical interchangeability.


Not for Resale

Page 20 EN 1452-3:1999

Figure 9 — Dimensions of adapters for backing flanges Table 9 ¾ Dimensions of adapters for PN 10 and PN 16 flanges (see figure 9) Dimensions in millimetres

Adapters

--`,`,-`-`,,`,,`,`,,`---

1) 2)

6.4.2

Flanges

Nominal diameter of socket 1)

External diameter

Contour radius

dn

d1

rmax

ting face

Nominal size of flange

flat Z

with groove Z1

DN 2)

16 20 25 32

22 ± 0,1 27 ± 0,15 33 ± 0,15 41 ± 0,2

1 1 1,5 1,5

3 3 3 3

6 6 6 6

10 15 20 25

40 50 63 75

50 ± 0,2 61 ± 0,2 76 ± 0,3 90 ± 0,3

2 2 2,5 2,5

3 3 3 3

8 8 8 8

32 40 50 65

90 110 125 140 160

108 ± 0,3 131 ± 0,3 148 ± 0,4 165 ± 0,4 188 ± 0,4

3 3 3 4 4

5 5 5 5 5

10 11 11 11 11

80 100 125 125 150

Socket dimensions and tolerances shall conform to EN 1452-2:1999. Refers to the DN of the mating flange according to ISO 2536.

Flanges

The nominal pressure PN of a flange shall be not less than the PN of the connecting pipe. The flange dimensions shown in figure 10 shall conform to the requirements in table 10 for PN 10 and PN 16. NOTES 1) The thickness of the flange depends on the PN and on the strength of the material used. 2) All connecting dimensions conform to ISO 2536. © BSI 10-2000 Copyright British Standards Institution Provided by IHS under license with BSI No reproduction or networking permitted without license from IHS

Not for Resale

Page 21 EN 1452-3:1999

KEY D d d1 d2 dn n r

: outside diameter of flange : inside diameter of flange : pitch circle diameter of bolt holes : diameter of a bolt hole : nominal outside diameter of pipe : number of bolt holes : radius

Figure 10 — Dimensions of flanges Table 10 ¾ Dimensions of PN 10 and PN 16 flanges (see figure 10) Dimensions in millimetres

Nominal outside diameter of corresponding pipe

Nominal size of flange

Outside diameter of flange

Inside diameter of flange 1)

Pitch circle diameter of bolt holes

Radius

Number of bolt holes

Diameter of bolt holes

Metric thread of bolt

dn

DN

D

d

d1

r

n

d2

16 20 25 32

10 15 20 25

90 95 105 115

23 28 34 42

60 65 75 85

1 1 1,5 1,5

4 4 4 4

14 14 14 14

M12 M12 M12 M12

40 50 63 75

32 40 50 65

140 150 165 185

51 62 78 92

100 110 125 145

2 2 2,5 2,5

4 4 4 4

18 18 18 18

M16 M16 M16 M16

90 110 125 140 160

80 100 125 125 150

200 220 250 250 285

110 133 150 167 190

160 180 210 210 240

3 3 4 4 4

8 8 8 8 8

18 18 18 18 22

M16 M16 M16 M16 M20

1) Tolerance on d: -0,5 for d £ 62 and -1 for d > 62, where d matches with the diameter of the flange adapter.

© BSI 10-2000 --`,`,-`-`,,`,,`,`,,`---


Not for Resale

Page 22 EN 1452-3:1999

6.5 6.5.1

Elastomeric ring seal fittings Socket and spigot dimensions

The socket inside diameter, di, the tolerance for out-of-roundness, the length of socket entrance and sealing area, c, and the chamfer of the fitting spigot shall conform to the same requirements as for sockets for elastomeric ring seal ting of pipes given in EN 1452-2:1999. Elastomeric ring seal fittings made from other materials than PVC-U shall conform to the same geometric requirements.

--`,`,-`-`,,`,,`,`,,`---

6.5.2 Minimum depth of engagement for double-sockets, socketed fittings and length of fitting spigots

Figure 11 shows the engagement when the male end is pushed to the socket bottom. instructions see ENV 1452-6.

For assembly

Figure 11 — Engagement of sockets and spigots

The minimum value for the depth of engagement, m1,min, of double-sockets shall conform to table 11. The minimum value for the depth of engagement, mmin, of socketed fittings (other than double-sockets) shall be the same as for sockets for elastomeric ring seal ts of pipes and shall conform to EN 1452-2:1999. © BSI 10-2000 Copyright British Standards Institution Provided by IHS under license with BSI No reproduction or networking permitted without license from IHS

Not for Resale

Page 23 EN 1452-3:1999 Manufacturer’s information (e.g. catalogues) shall state the actual length of fitting spigots, l, based on the following equation: --`,`,-`-`,,`,,`,`,,`---

l > m1 + c + 0,05dn

where the minimum values for m1 are given in table 11 and c conforms to EN 1452-2:1999. NOTE

The minimum length of fitting spigots, lmin, is given in table 11 for guidance.

Table 11 ¾ Minimum depth of engagement for double-sockets and minimum length of fitting spigots (see figure 11) Dimensions in millimetres

Nominal inside diameter of socket

Minimum depth of engagement 1)

Minimum length of fitting spigot 2)

dn

m1,min

lmin

32 40 50 63

32 33 33 34

84 85 89 93

75 90 110 125

35 35 36 37

98 102 110 114

140 160 180 200

38 39 40 41

119 127 133 139

225 250 280 315

42 44 45 48

147 156 166 176

355 400 450 500

50 52 55 57

187 198 212 224

560 630 710

61 65 69

241 260 281

1)

m1,min is calculated using the equation: m1,min = 30 mm + 0,15dn - 2en, where en is the nominal wall thickness of the corresponding pipes of series S 10. 2)

lmin is calculated using the equation: lmin = mmin + c + 0,05dn, where mmin and c are given in EN 1452-2:1999.

6.5.3

Diameters, laying lengths, design lengths, bend radii and angles

6.5.3.1 The relevant dimensions are shown in figure 12 to figure 19, as applicable.

The laying lengths (Z-lengths) shall be equal to or greater than the applicable minimum values given in table 14 to table 17 and table 19 for injection-moulded fittings and for fittings made from pipe. Manufacturer’s information (e.g. catalogue) shall state the actual Z-lengths. © BSI 10-2000 Copyright British Standards Institution Provided by IHS under license with BSI No reproduction or networking permitted without license from IHS

Not for Resale

Page 24 EN 1452-3:1999 6.5.3.2 For bends made from pipe and for spigot fittings the Zd (Z-design lengths) and the bend radii shall be equal to or greater than the applicable values given in table 12 and table 13. NOTE: The Zd-lengths are always greater than the corresponding socket lengths.

6.5.3.3 Figures and tables for elastomeric ring seal fittings

--`,`,-`-`,,`,,`,`,,`---

Figure 12 — Bends made from pipes


Not for Resale

Page 25 EN 1452-3:1999 Table 12 ¾ Calculated minimum bend radii and minimum Zd-lengths for bends made for pipes (see figure 12) Dimensions in millimetres

Nominal diameter


Minimum bend radius 1)

dn

rmin

11°

22°

30°

45°

60°

63 75 90 110 125

221 263 315 385 438

46 55 66 81 92

68 81 97 119 135

84 100 120 147 167

117 139 166 203 231

153 182 218 266 303

246 293 351 429 488

140 160 180 200 225

490 560 630 700 788

103 118 133 147 166

151 173 194 216 243

187 214 241 268 301

259 296 333 370 416

339 387 436 484 545

546 624 702 780 878

250 280 315 355 400

875 980 1103 1243 1400

184 206 232 262 295

270 302 340 384 432

334 375 421 475 535

462 518 583 656 740

605 678 763 859 968

975 1092 1229 1385 1560

450

1575

332

486

602

832

1089

1755

500 560 630

1750 1960 2205

369 413 464

540 605 681

669 749 843

925 1036 1165

1210 1356 1525

1950 2184 2457

1)


2)

= Zd,min is calculated using the equation: Zd,min = (3,5dn ´ tan ) + 0,4dn. 2

Figure 13 — Short bends made from pipes

© BSI 10-2000 --`,`,-`-`,,`,,`,`,,`---


Not for Resale

90°

Page 26 EN 1452-3:1999 Table 13 ¾ Calculated minimum bend radii and minimum Zd-lengths for short bends made from pipes (see figure 13) Dimensions in millimetres

Nominal diameter

Minimum bend radius

dn

rmin 1)


11°

22°

30°

45°

60°

90°

63 75 90 110 125

157 187 225 275 312

31 37 44 54 61

46 55 66 81 92

58 69 83 101 115

81 96 116 141 161

107 127 152 186 212

173 206 248 303 344

140 160 180 200 225

350 400 450 500 562

69 79 88 98 110

103 118 133 147 166

129 147 166 184 207

180 206 231 257 289

237 271 305 339 381

385 440 495 550 619

250 280 315 355 400

625 700 787 887 1000

123 137 155 174 196

184 206 232 261 294

230 258 290 327 368

321 360 405 456 514

423 474 533 601 677

688 770 866 976 1100

450 500 560 630

1125 1250 1400 1575

221 245 275 309

331 368 412 464

414 460 515 580

578 643 720 810

762 847 948 1067

1238 1375 1540 1733

1)


2)

Zd,min is calculated using the equation: Zd,min = (2,5dn ´ tan

= ) + 0,25dn. 2


Not for Resale

--`,`,-`-`,,`,,`,`,,`---

Figure 14 — Double-sockets

Page 27 EN 1452-3:1999 Table 14 ¾ Z-lengths for double-sockets (see figure 14) Dimensions in millimetres

Nominal diameter of socket dn

--`,`,-`-`,,`,,`,`,,`---

NOTE

Minimum Z-length

Nominal diameter of socket dn

Minimum Z-length

32 40 50 63

2 2 2 2

200 225 250 280

6 7 8 8

75 90 110 125

3 3 4 4

315 355 400 450

8 8 8 8

140 160 180

5 5 5

500 560 630

8 8 8

Double-sockets without central are intended to be used for repair purposes.

Figure 15 — Tees with sockets, injection-moulded


Not for Resale

Page 28 EN 1452-3:1999 Table 15 ¾ Calculated minimum laying lengths for injection-moulded tees with sockets (equal and with branch reduced) (see figure 15) Dimensions in millimetres

dn

dn1

Minimum laying lengths

Zmin1)

Z1,min2)

Nominal diameters


dn

dn1

Zmin1)

Z1,min2)

160

63

63

80

63

63

63

32

75

63

63

38

75

75

80

75

75

38

90

90

80

63

63

45

110

110

80

75

75

45

125

125

80

90

90

45

140

140

80

63

63

55

160

160

80

75

75

55

90

90

100

90

90

55

110

110

100

110

110

55

125

125

100

63

63

63

140

140

100

75

75

63

160

160

100

90

90

63

200

200

100

110

110

63

63

63

113

125

125

63

75

75

113

63

63

70

90

90

113

75

75

70

110

110

113

90

90

70

125

125

113

110

110

70

140

140

113

125

125

70

160

160

113

140

140

70

200

200

113

225

225

113

90

110

125

140

200

225

1)

Zmin = dn1.

2)

Z1,min = 0,5dn, rounded to the next greater millimetre.


Not for Resale

--`,`,-`-`,,`,,`,`,,`---

Nominal diameters

Page 29 EN 1452-3:1999

NOTE

For flange dimensions, see table 10, for collar dimensions, see table 9.

Figure 16 — Tees with sockets and flanged branch, injection-moulded

--`,`,-`-`,,`,,`,`,,`---


Not for Resale

Page 30 EN 1452-3:1999 Table 16 ¾ Calculated minimum laying lengths for injection-moulded tees with sockets and flanged branch, (equal and with branch reduced) (see figure 16) Dimensions in millimetres

Nominal diameters


Zmin1)

dn1

Zmin1)

160

63

63

190

140

75

75

190

75

140

90

90

200

63

63

150

110

110

210

75

75

150

125

125

210

90

90

150

140

140

210

63

63

160

160

160

230

75

75

160

90

90

225

90

90

170

110

110

235

110

110

180

125

125

235

63

63

170

140

140

235

75

75

170

160

160

255

90

90

180

200

200

265

110

110

190

63

63

230

125

125

190

75

75

230

63

63

180

90

90

240

75

75

180

110

110

250

90

90

190

125

125

250

110

110

200

140

140

250

125

125

200

160

160

270

140

140

200

(200)

200

280

225

225

280

dn1

63

63

63

130

75

63

63

75

110

125

140


dn

dn

90

Nominal diameters

Z1,min

200

225

Z1,min

1) Z min = dn1.

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Not for Resale

Page 31 EN 1452-3:1999

NOTE

For flange dimensions, see table 10, for collar dimensions, see table 9.

Figure 17 — Flanged sockets, injection-moulded Table 17 ¾ Calculated minimum laying lengths for injection-moulded flanged sockets (see figure 17) Dimensions in millimetres

Nominal diameter of the socket dn

63

75

90

110

125

140

160

200

225

Minimum laying length Zmin

3

3

5

5

5

5

5

6

6

*) l min conforms to table 11. NOTE For flange dimensions, see table 10, for collar dimensions, see table 9.

Figure 18 — Flanged spigots, injection-moulded

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Not for Resale

Page 32 EN 1452-3:1999 Table 18 ¾ Calculated minimum Zd-lengths for injection-moulded flanged spigots (see figure 18) Dimensions in millimetres

Nominal diameter of the socket dn

63

75

90

110

125

140

160

200

225

Minimum design length Zd,min 1)

33

34

35

37

39

40

42

46

49

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1) Z d,min = 0,1dn + 26 mm.

Figure 19 — Reducers


Not for Resale

Page 33 EN 1452-3:1999 Table 19 ¾ Minimum laying and design lengths for reducers (see figure 19) Dimensions in millimetres

Nominal diameters

Minimum laying and design lengths

dn

dn1

75

63

3

6

6

34

90

63

4

14

14

62

75

4

8

8

41

75

5

18

18

79

90

5

10

10

53

90

5

18

18

81

110

5

8

8

47

90

7

25

25

109

110

7

15

15

76

125

7

8

8

50

110

7

25

25

113

125

7

18

18

88

140

7

10

10

62

140

10

30

30

137

160

10

20

20

103

160

10

33

33

150

200

10

13

13

81

110

125

140

160

200

225

Zmin

Zd1,min

Zd2,min

Zd3,min

NOTE: For lmin, see table 11.

6.5.4

Wall thicknesses

The minimum wall thickness of the sockets and spigots at any point, except the sealing ring groove, shall be not less than the minimum wall thickness specified for the connecting pipe in EN 1452-2:1999. A bend made from pipe shall have a wall thickness at its bent area not less than the minimum wall thickness specified for the corresponding pipe in EN 1452-2:1999.

6.6

End-load-bearing double-sockets with elastomeric seals

End-load-bearing double-sockets are designed to PVC-U pipes with outside diameters conforming to EN 1452-2:1999 when longitudinal forces on the double-sockets shall be expected. The end-load-bearing double-sockets are provided with elastomeric seals and a locking device.

© BSI 10-2000

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Not for Resale

Page 34 EN 1452-3:1999

Figure 20 — Example of an end-load-bearing double-socket

When tested in accordance with EN ISO 13783 at any ambient temperature between 15 °C and 25 °C but maintained within ± 2 °C, the double-socket shall remain leaktight throughout the whole of the test period. After the test period the assembled parts shall show no signs of cracking, and the locking devices shall not be deformed by more than 30 % of their original width.

Classification and operating conditions

7.1

Classification

Fittings shall be classified according to their nominal pressure PN and the series S of the connecting pipe for which the fitting is designed. The nominal pressure PN of the fitting shall be related to its material design stress, ss, using as a basis, the relationship used for pipes, i.e.

[PN] =ˆ 10I s [S] where: σs = 12,5 MPa for PVC-UH material with MRS ³ 25 MPa, or σs = 10,0 MPa for PVC-U material with MRS < 25 MPa.

7.2

Determination of the allowable operating pressure PFA for water up to 45 °C

The allowable operating pressure for temperatures up to 25 °C shall be equal to the nominal pressure. To determine the allowable operating pressure for temperatures between 25 °C and 45 °C a supplementary derating factor, fT, shall be applied to the nominal pressure as follows: [PFA] = fT ´ [PN] This factor shall be derived from figure A.1 of annex A of EN 1452-2:1999.


Not for Resale

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7

Page 35 EN 1452-3:1999

8

Mechanical characteristics

8.1

Resistance to internal pressure of fittings or parts of fittings

The mechanical strength of the fitting as an isolated component of a piping system, can be verified by application of internal pressure tests. When tested in accordance with ISO/DIS 12092:1994, using the test parameters given in table 20, where the test pressures are related to the PN of the fitting, the fitting or parts of the fitting shall conform to the requirements given in table 20. Table 20 ¾ Resistance of fittings or parts of fittings to internal pressure Test pieces 1)

Characteristic Require ments

Type

Test parameters

Nominal

Temp.

diameter

PVC-U

mm Internal pressure

No break

Injectionmoulded

during

fittings

the test period

Injectionmoulded

dn < 160 20

dn ³ 160 20

dn £ 90

PVC-UH

Test

Type of

period

test

°C

fittings Fittings made

Pressure in bar 2) 3)

Test

20

method

h 4,2 ´ [PN]

1

3,2 ´ [PN]

1000

4,2 ´ [PN]

3,36´[PN]

1

3,2 ´ [PN]

2,56´[PN]

1000

4,2 ´ [PN]

Water-inwater

ISO/DIS 12092:1994

1

from pipe dn > 90 20 3,36´[PN] 1 1) The sampling procedure and the number of test pieces shall conform to ENV 1452-7. 2) The test pressure p, shall be determined using the following equation:

p=

Test stress

Design stress

´ [PN]

where: - the test stress shall be 42 MPa at 1 h and 32 MPa at 1000 h; - the design stress shall be 10 MPa with the exception of fittings made from pipe of dn > 90 mm and of injection-moulded PVC-UH fittings with dn ³ 160 mm, for which the design stress shall be 12,5 MPa. 3) Where a mould, previously used to manufacture a fitting of a selected nominal pressure PN for type PVC-U material, is subsequently used to manufacture a fitting from type PVC-UH material, then the nominal pressure of that fitting can be increased by a factor of 1,25. Alternatively if the nominal pressure is retained at its original value, then the original test pressure for type PVC-U material shall be maintained.

8.2 Crushing test Injection-moulded parts of fittings, on which hydrostatic pressure cannot be applied, shall be tested in accordance with EN 802. The tested fitting parts shall not shatter when they undergo a deformation of 20 %. The period between manufacture and testing, t1, and the conditioning period, t2, shall be not less than 30 min. The closure speed of the press plates shall be (50 ± 5) mm/min.


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Page 36 EN 1452-3:1999

9

Physical characteristics

When tested in accordance with the test methods as specified in table 21 using the indicated parameters, the fittings shall have physical characteristics conforming to the requirements given in this table.

Table 21 ¾ Physical characteristics for injection-moulded fittings Characteristic

Requirement

Vicat softening temperature (VST)

³ 74 °C

Effects of heating

The fittings shall not show any blisters or signs of weld-line splitting. 1) No surface damage in the area of any injection point shall penetrate deeper than 30 % of the wall thickness at that point. The remaining sound wall thickness shall be at least 70 %. Outside the area of any injection point no surface damage shall occur. 2)

Test parameters

Shall conform to EN 727 Test temperature:

(150 ± 2) °C

Test period for: e 3<e 10 < e 20 < e 30 < e 40 < e

£ £ £ £ £

3 10 20 30 40

15 min 30 min 60 min 140 min 220 min 240 min

Sampling procedure

Shall conform to ENV 1452-7

Number of test pieces:

Shall conform to ENV 1452-7

Test method

EN 727 Method A of EN 763 (Air oven) 3)

1) The weld-line is likely to become more pronounced, but this should not be taken as a sign of weld-line opening. 2) For sprue-gating, the area of the injection point shall be calculated using a radius R = 0,3d with a n maximum value of 50 mm. For fittings moulded by end-gating techniques, e.g. ring or diaphragm methods, the gating area shall be a cylindrical portion with a length of L = 0,3dn with a maximum value of 50 mm (see figure 21). Any cracks or delamination in the wall of the fitting within to the injection area, parallel to the axis of the fitting, shall not penetrate in the axial direction more than 20 % of the length L defined in this note. 3) After removal from the hot air oven the fitting shall be cut, using a razor sharp blade, from the mouth of the socket or spigot of the fitting over its full length and the exposed surfaces shall be examined. The number of cuts on each fitting tested shall be as follows: --`,`,-`-`,,`,,`,`,,`---

a) for fittings of dn up to and including 160 mm: not less than two cuts equally spaced around the periphery of the mouth of each socket or spigot of the fitting. b) for fittings of dn greater than 160 mm: not less than four cuts equally spaced around the periphery of the mouth of each socket or spigot of the fitting.


Not for Resale

Page 37 EN 1452-3:1999

Figure 21 — Injection gating areas

10

Chemical characteristics

The chemical characteristics shall conform to those required for pipes by EN 1452-2:1999.

11

Sealing rings

Sealing rings shall conform to EN 1452-2:1999.

12

Adhesives

Adhesives shall conform to EN 1452-2:1999.

13

Performance requirements

When fittings conforming to this standard are ed to each other or to components conforming to other Parts of EN 1452, the fittings and the ts shall conform to EN 1452-5.

14

Marking

14.1

General

14.1.1 Unless otherwise specified in table 22 or table 23, the marking elements shall be printed or formed directly on the fitting in such a way that after storage, weathering, handling and the installation in accordance with ENV 1452-6, legibility is maintained during the use of the products. NOTE The manufacturer is not responsible for marking being illegible due to actions caused by installation and use such as painting, scratching, covering of the fittings or using detergents etc. on the fitting.

14.1.2 Marking shall not initiate cracks or other types of defects which would impair conformity to the requirements of this standard. 14.1.3 If printing is used the colour of the printed information shall differ from the basic colour of the product. 14.1.4 The size of the marking shall be such that the marking is legible without magnification.

14.2

Minimum required marking

The minimum required marking shall conform to table 22 for fittings and to table 23 for flanges.

© BSI 10-2000

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Not for Resale

Page 38 EN 1452-3:1999 Table 22 ¾ Minimum required marking on fittings Aspects -

Mark or symbol

Number of the System Standard 1) Manufacturer's name and/or trade mark Nominal diameter(s) dn Material Nominal pressure PN 2) 3) Manufacturer's information 2) 4)

EN 1452 xyz e.g. 63-32-63 e.g. PVC-UH e.g. PN 16 e.g. 90.66

1) This information may either be marked directly on the fitting or on a label attached to the fitting or

on the packaging. 2) For fittings of nominal diameters d £ 32 mm note 1) applies. n 3) The marking of the pipe series S may be included, e.g. PN 16/S 8. 4) For providing traceability the following details shall be given:

a) the production period, year, in figures or in code; b) a name or code for the production site if the manufacturer is producing in different sites, nationally and/or internationally.

Table 23 ¾ Minimum required marking on flanges Aspects

Mark or symbol

- Number of the System Standard 1) -

EN 1452 xyz e.g. DN 80 e.g. PVC-U e.g. PN 16 e.g. 93.66

Manufacturer's name and/or trade mark Nominal size DN of flange Material Nominal pressure PN of flange Manufacturer's information 2) 3)

1) This information may either be marked directly on the flange, on a plate/label attached to the

flange or on the packaging. 2) For flanges of DN £ 25 note 1) applies. 3) For providing traceability the following details shall be given:

a) the production period, year, in figures or in code; b) a name or code for the production site if the manufacturer is producing in different sites, nationally and/or internationally.

14.3

Additional marking

14.3.1 Fittings conforming to this standard, which conform also to other standard(s), may be additionally marked with the minimum required marking in accordance with the other standard(s), in which case note 1) of table 22 or table 23 applies. 14.3.2 Fittings conforming to this standard, which are third party certified may be marked accordingly. NOTE

Attention is drawn to the possible need to include CE marking when required for legislative purposes.

© BSI 10-2000

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Not for Resale

Page 39 EN 1452-3:1999

Annex A (normative) Imperial(inch)-sized fittings

A.1 General All clauses contained within the main text of this standard shall apply, together with the following clauses. Only those clauses are described hereafter, for which the contents differ from the main text.

A.2 Nominal sizes and pressure classes A.2.1 Nominal sizes In place of 6.2, the following shall apply. The nominal size(s) of a fitting shall correspond to and be designated by the nominal size(s) of the pipe(s) for which the fitting is designed.

A.2.2 Pressure classes In place of 7.1, the following shall apply. Fittings shall be classified according to the following nominal pressures, as applicable: PN 9, PN 12 and PN 15

A.3 Solvent cement type fittings For the purposes of 6.3, the following shall apply.

A.3.1 Socket and spigot dimensions The socket dimensions of the fitting shall be the same as for pipes conforming to B.3.3.1 of EN 1452-2:1999.

A.3.2 Diameters, laying lengths and other dimensions Subclause 6.3.2 does not apply for imperial-sized fittings.

A.3.3 Wall thickness for bends made from pipe A bend made from pipe shall have a wall thickness at its bent area not less than the minimum wall thickness specified for the corresponding pipe in table B.2 of EN 1452-2:1999.

A.4 Flanges For imperial-sized flanges table A.1 together with figure 10 applies.

© BSI 10-2000 --`,`,-`-`,,`,,`,`,,`---


Not for Resale

Page 40 EN 1452-3:1999 Table A.1 ¾ Dimensions of flanges --`,`,-`-`,,`,,`,`,,`---

Nominal Size

Outside diameter of flange

Pitch circle diameter of bolt holes

Radius

Number of bolt holes

Diameter of bolt holes

D

d1

r

n

d2

mm

mm

mm

½ ¾ 1

90 95 105 115

60 65 75 85

1 1 1,5 1,5

4 4 4 4

14 14 14 14

M12 M12 M12 M12

1¼ 1½ 2 2½

140 150 165 185

100 110 125 145

2 2 2,5 2,5

4 4 4 4

18 18 18 18

M16 M16 M16 M16

3 4 5 6

200 220 250 285

160 180 210 240

3 3 4 4

8 8 8 8

18 18 18 22

M16 M16 M16 M20

(in) 3

¤8

Metric thread of bolt

mm

A.5 Elastomeric ring seal fittings For the purposes of 6.5, the following shall apply.

A.5.1 Socket and spigot dimensions In 6.5.1 the following applies. The length of socket entrance and the chamfer on the spigot for fittings shall be the same as for pipes conforming to B.3.3.2 of EN 1452-2:1999.

A.5.2 Minimum depths of engagement for double-sockets, socketed fittings and lengths of fitting spigots In 6.5.2 the following applies. Minimum depths of engagement, mmin, for double and single sockets shall be the same as for pipe sockets conforming to B.3.3.2 of EN 1452-2:1999.

A.6 Mechanical characteristics For the resistance to internal pressure of fittings or fittings components, table A 2 shall apply in place of table 20.


Not for Resale

Page 41 EN 1452-3:1999 Table A.2 ¾ Resistance of fittings to internal pressure Characteristic

Internal pressure

Requirements

Type of test piece

No failure during

Injectionmoulded

the test

fittings

period

Fittings made from pipe

Test parameters Temp.

Pressure 1)

Test period

°C

bars

h

20

20

3,36´[PN]

1

2,56´[PN]

1000

3,36´[PN]

1

Type of test

Test method

Water-in- ISO/DIS water 12092:1994

--`,`,-`-`,,`,,`,`,,`---

1) The values given in note 2) to table 20 in this standard do not apply.


Not for Resale

Page 42 EN 1452-3:1999

Annex B (informative) Bibliography

EN 1452-4, Plastics piping systems for water supply — Unplasticized poly(vinyl chloride) (PVC-U) — Part 4: Valves and ancillary equipment ENV 1452-6, Plastics piping systems for water supply — Unplasticized poly(vinyl chloride) (PVC-U) — Part 6: Guidance for installation ISO 2536: 1974, Unplasticized poly(vinyl chloride) (PVC-U) pressure pipes and fittings, metric series — Dimensions of flanges.

© BSI 10-2000 --`,`,-`-`,,`,,`,`,,`---


Not for Resale

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blank Not for Resale

BS EN 1452-3:2000

BSI 389 Chiswick High Road London W4 4AL

| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |


BSI Ð British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Revisions British Standards are updated by amendment or revision. s of British Standards should make sure that they possess the latest amendments or editions. It is the constant aim of BSI to improve the quality of our products and services. We would be grateful if anyone finding an inaccuracy or ambiguity while using this British Standard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover. Tel: 020 8996 9000. Fax: 020 8996 7400. BSI offers an individual updating service called PLUS which ensures that subscribers automatically receive the latest editions of standards. Buying standards Orders for all BSI, international and foreign standards publications should be addressed to Customer Services. Tel: 020 8996 9001. Fax: 020 8996 7001. Standards are also available from the BSI website at http://www.bsi-global.com. In response to orders for international standards, it is BSI policy to supply the BSI implementation of those that have been published as British Standards, unless otherwise requested. Information on standards BSI provides a wide range of information on national, European and international standards through its Library and its Technical Help to Exporters Service. Various BSI electronic information services are also available which give details on all its products and services. the Information Centre. Tel: 020 8996 7111. Fax: 020 8996 7048. Subscribing of BSI are kept up to date with standards developments and receive substantial discounts on the purchase price of standards. For details of these and other benefits hip istration. Tel: 020 8996 7002. Fax: 020 8996 7001. Further information about BSI is available on the BSI website at http://www.bsi-global.com. Copyright Copyright subsists in all BSI publications. BSI also holds the copyright, in the UK, of the publications of the international standardization bodies. Except as permitted under the Copyright, Designs and Patents Act 1988 no extract may be reproduced, stored in a retrieval system or transmitted in any form or by any means ± electronic, photocopying, recording or otherwise ± without prior written permission from BSI. This does not preclude the free use, in the course of implementing the standard, of necessary details such as symbols, and size, type or grade designations. If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained. If permission is granted, the may include royalty payments or a licensing agreement. Details and advice can be obtained from the Copyright Manager. Tel: 020 8996 7070.

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