ISO/DIS 5752

Metal valves for use in flanged pipe systems -- Face-to-face and centre-to-face dimensions

Appareils de robinetterie métalliques utilisés dans les tuyauteries à brides -- Dimensions face-à-face et face-à-axe

Standards Content (sample)

DRAFT INTERNATIONAL STANDARD
ISO/DIS 5752
ISO/TC 153 Secretariat: AFNOR
Voting begins on: Voting terminates on:
2020-03-17 2020-06-09
Metal valves for use in flanged pipe systems — Face-to-face
and centre-to-face dimensions

Appareils de robinetterie métalliques utilisés dans les tuyauteries à brides — Dimensions face-à-face et

face-à-axe
ICS: 23.060.01
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
This document is circulated as received from the committee secretariat.
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 5752:2020(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION. ISO 2020
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ISO/DIS 5752:2020(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2020

All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may

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ii © ISO 2020 – All rights reserved
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ISO/DIS 5752:2020(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

Introduction ..................................................................................................................................................................................................................................v

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Dimensions and tolerances ....................................................................................................................................................................... 2

Annex A (normative) Additional length for valves with ring joint flange ...................................................................19

Annex B (informative) Origin of basic series ............................................................................................................................................21

Bibliography .............................................................................................................................................................................................................................23

© ISO 2020 – All rights reserved iii
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ISO/DIS 5752:2020(E)
Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards

bodies (ISO member bodies). The work of preparing International Standards is normally carried out

through ISO technical committees. Each member body interested in a subject for which a technical

committee has been established has the right to be represented on that committee. International

organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.

ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of

electrotechnical standardization.

The procedures used to develop this document and those intended for its further maintenance are

described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the

different types of ISO documents should be noted. This document was drafted in accordance with the

editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of

any patent rights identified during the development of the document will be in the Introduction and/or

on the ISO list of patent declarations received (see www .iso .org/ patents).

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.

For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and

expressions related to conformity assessment, as well as information about ISO's adherence to the

World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www .iso .org/

iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 153, Valves.

This third edition cancels and replaces the second edition (ISO 5752:1982), which has been technically

revised.
The main changes compared to the previous edition are as follows:

— extension to PN 63; PN 100; PN 160; PN 250; PN 320; PN 400; deletion of PN 1; PN 1,6; PN 4;

— extension to Class 900; Class 1 500; Class 2 500;
— addition of DN 1 050; deletion of DN 550;
— deletion of Table 1 (Isobaric) and Table 10 (copper alloy);
— update of the basic series in Table 1;
— update of the face-to-face and centre-to-face dimensions in Tables 2 to 9.

Any feedback or questions on this document should be directed to the user’s national standards body. A

complete listing of these bodies can be found at www .iso .org/ members .html.
iv © ISO 2020 – All rights reserved
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ISO/DIS 5752:2020(E)
Introduction

The aim of this document is the establishment of face-to-face and centre-to-face dimensions for metal

valves to permit a degree of dimensional interchangeability. They are intended to be used in the valve

product standards.

Although the tables of face-to-face dimensions in this document represent a considerable rationalization

of international practices, it has not been possible to reduce these to a single series of dimensions for

the various types of valves. Alternatives have been included. For convenience these have been called

short, medium and long, but these terms are not used in a descriptive sense.

The pressure/temperature ratings for the different types of valves are those to be specified for the type

of valves and materials used.

The principle of establishing dimensions in this document is that, first, there exists an ISO industrial

valve standard covering that product, in its size and pressure rating, and second, certain valve types

are of significant international demand that their use justifies inclusion in this international standard.

© ISO 2020 – All rights reserved v
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DRAFT INTERNATIONAL STANDARD ISO/DIS 5752:2020(E)
Metal valves for use in flanged pipe systems — Face-to-face
and centre-to-face dimensions
1 Scope

This document specifies the basic series of face-to-face (FTF) and centre-to-face (CTF) dimensions

for two-way metal valves of the gate, globe, diaphragm, ball, plug, butterfly design types used as

isolating and check valves in flanged pipe systems. Each basic series of face-to-face and centre-to-face

dimensions may be used as required with flanges of mating dimensions conforming to equivalent EN or

ASME flange series.
This document covers valves with the following PN, Class, DN and NPS values:

— PN 2,5; PN 6; PN 10; PN 16; PN 25; PN 40; PN 63; PN 100; PN 160; PN 250; PN 320; PN 400;

— Class 125; Class 150; Class 250; Class 300; Class 600; Class 900; Class 1 500; Class 2 500;

— DN 10; DN 15; DN 20; DN 25; DN 32; DN 40; DN 50; DN 65; DN 80; DN 100; DN 125; DN 150; DN 200;

DN 250; DN 300; DN 350; DN 400; DN 450; DN 500; DN 600; DN 650; DN 700; DN 750; DN 800;

DN 900; DN 1 000; DN 1 050; DN 1 200; DN 1 400; DN 1 600; DN 1 800; DN 2 000;

— corresponding to nominal sizes NPS: 3/8; 1/2; 3/4; 1; 1 1/4; 1 1/2; 2; 2 1/2; 3; 4; 5; 6; 8; 10; 12; 14;

16; 18; 20; 24; 26; 28; 30; 32; 36; 40; 42; 48; 56; 64; 72; 80.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
3.1
nominal size
DN or NPS

alphanumeric designation of size for components of a pipework system, which is used for reference

purposes, comprising the letters DN or NPS followed by a dimensionless number which is indirectly

related to the physical size, (in millimetres for DN and in inches for NPS), of the bore or outside diameter

of the end connections

Note 1 to entry: The number following DN or NPS does not represent a measurable value and is not used for

calculation purposes except where specified in a product standard.
Note 2 to entry: See ASME B16.34.
[SOURCE: ISO 6708:1995, definition 2.1, modified]
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ISO/DIS 5752:2020(E)
3.2
nominal pressure
PN or Class

numerical designation relating to pressure that is a convenient rounded number for reference purposes,

and which comprises the letters “PN” or “Class” followed by the appropriate reference number

Note 1 to entry: It is intended that all equipment of the same nominal size (DN or NPS) designated by the same PN

number or Class number shall have compatible mating dimensions.

Note 2 to entry: The maximum allowable pressure depends on materials, design and working temperature, and is

to be selected from the tables of pressure/temperature ratings given in the appropriate standards.

[SOURCE: ISO 7268:1983, Clause 2, modified]
3.3
face-to-face dimensions
(FTF)
[straight pattern valves]

distance between the two planes perpendicular to the valve axis located at the extremities of the body

end ports
Note 1 to entry: In millimetres.
Note 2 to entry: See Figures 1 to 4.
3.4
centre-to-face dimensions
(CTF)
[angle pattern valves]

distance, between the plane located at the extremity of either body end port and perpendicular to its

axis and the other body end port axis
Note 1 to entry: In millimetres.
Note 2 to entry: See Figures 1 to 4.
4 Dimensions and tolerances

The basic series of FTF and CTF dimensions, expressed in millimetres, shall be as given in Table 1.

Table 1 is a summary of the dimensions in Tables 2 to 9 giving the origin of each series and should be

referred to when consideration is given to valve types not covered by this document. Each particular

column does not necessarily include all the valves of the relevant basic series.

Table 9 covers butterfly check or wafer check valves which are retained in the piping by bolting that

spans the two adjacent flanges, however these valves may alternately be furnished with full end

flanges as shown in the table notes. Check valves shown as ‘long pattern’ shall be furnished with full

end flanges only.

The face-to-face and centre-to-face dimensions, as appropriate for the types of valves covered by this

document, shall be in accordance with Tables 2 to 9, and the tolerances shall be in accordance with

Tables 10 and 11.

Tolerances on FTF and CTF dimensions as shown in Figure 1 are given in Table 10. Both tolerances shall

be fulfilled.
2 © ISO 2020 – All rights reserved
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ISO/DIS 5752:2020(E)
Key
a face-to-face (FTF)
b centre-to-face (CTF)
Figure 1 — Face to face and centre to face dimensions
Key
a face-to-face (FTF)
Figure 2 — Flanged valves PN and Class designated (flat and raised faces)
© ISO 2020 – All rights reserved 3
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ISO/DIS 5752:2020(E)
Key
a face-to-face (FTF)
Figure 3 — Flanged valves PN designated (spigot and recess)
4 © ISO 2020 – All rights reserved
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ISO/DIS 5752:2020(E)
Class 150 and Class 300 Class 600 and above
Large or small male face
Large or small female face
Large or small tongue
Large or small groove
Key
a for dimensions see Table 2 to Table 9
b face-to-face (FTF)
c centre-to-face (CTF)
e height
NOTE For elevation height e, see appropriate flange standard.
Figure 4 — Flanged valves Class designated
© ISO 2020 – All rights reserved 5
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ISO/DIS 5752:2020(E)

End flange seating surfaces shall be parallel or perpendicular. Tolerances “c” on the parallelism or

perpendicularity as shown in Figure 5 are given in Table 11.
Figure 5 — Tolerances on parallelism and perpendicularity
6 © ISO 2020 – All rights reserved
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ISO/DIS 5752:2020(E)
© ISO 2020 – All rights reserved 7
Table 1 — Dimensions of basic series
Dimensions in millimetres
Nominal size Basic series
a a a a
DN NPS 1 2 3 4 5 7 8 9 10 11 12 13 14 15 16 17 19 20 21 24 25 26 27
10 3/8 130 210 102 — — 108 90 105 102 51 130 — 115 — — – — — — — — — 115 10

15 1/2 130 210 108 140 165 108 90 105 108 57 130 — 115 — — 140 140 — 152 83 — — 115 15

20 3/4 150 230 117 152 190 117 95 115 117 64 130 — 120 — — 152 152 25 178 95 — — 120 20

25 1 160 230 127 165 216 127 100 115 127 70 140 — 125 120 — 165 165 25 216 108 — — 125 25

32 1 1/4 180 260 140 178 229 146 105 130 140 76 165 — 130 140 — 178 178 33 229 114 — — 130 32

40 1 1/2 200 260 165 190 241 159 115 130 165 83 165 106 140 240 33 190 190 33 241 121 — 240 140 40

50 2 230 300 178 216 292 190 125 150 203 102 203 108 150 250 43 216 216 43 267 146 44 250 150 50

65 2 1/2 290 340 190 241 330 216 145 170 216 108 222 112 170 270 46 241 241 46 292 165 59 290 170 65

80 3 310 380 203 283 356 254 155 190 241 121 241 114 180 280 64 283 283 46 318 178 49 310 180 80

100 4 350 430 229 305 432 305 175 215 292 146 305 127 190 300 64 305 305 52 356 216 56 350 190 100

125 5 400 500 254 381 508 356 200 250 330 178 356 140 200 325 70 381 381 56 400 254 64 400 325 125

150 6 480 550 267 403 559 406 225 275 356 203 394 140 210 350 76 403 403 56 444 279 70 450 350 150

200 8 600 650 292 419 660 521 275 325 495 248 457 152 230 400 89 502 419 60 559 330 71 550 400 200

250 10 730 775 330 457 787 635 325 — 622 311 533 165 250 450 114 568 457 68 622 394 76 650 450 250

300 12 850 900 356 502 838 749 375 — 698 349 610 178 270 500 114 648 502 78 711 419 83 750 500 300

350 14 980 1 025 381 762 889 — 425 — 787 394 686 190 290 550 127 762 572 78 838 — 92 850 550 350

400 16 1 100 1 150 406 838 991 — 475 575 914 457 762 216 310 600 140 838 610 79 864 — 102 950 762 400

450 18 1 200 1 275 432 914 1 092 — 500 — 978 483 864 222 330 650 152 914 660 102 978 — 114 1 050 — 450

500 20 1 250 1 400 457 991 1 194 — — 700 978 — 914 229 350 700 152 991 711 111 1 016 — 127 1 150 914 500

600 24 1 450 1 650 508 1 143 1 397 — — — 1 295 — 1 067 267 390 800 178 1 143 787 — 1 346 — 154 1 350 — 600

650 26 — — 559 1 245 1 448 — — — 1 295 — 1 143 — — — — 1 245 — — 1 346 — — — — 650

700 28 1 650 — 610 1 346 1 549 — — — 1 448 — — 292 430 900 229 —1346 — — 1 499 — — 1 550 — 700

750 30 1 750 — 610 1 397 1 651 — — — 1 524 — —1295 — — 950 230 —1397 — — 1 594 — 165 — — 750

800 32 1 850 — 660 1 524 1 778 — — — —1676 — — 318 470 1 000 241 —1524 — — — — — 1 750 — 800

900 36 2 050 — 711 1 727 2 083 — — — 1 956 — 1 600 330 510 1 100 241 —1727 — — 2 083 — 200 1 950 — 900

1 000 40 2 250 — 813 — — — — — — — — 410 550 1 200 300 — — — — — — 2 150 — 1 000
1 050 42 — — — — — — — — — — — — — — — — — — — — 251 — — 1 050
1 200 48 — — — — — — — — — — — 470 630 — 350 — — — — — 276 — — 1 200
1 400 56 — — — — — — — — — — — 530 710 — 390 — — — — — — — — 1 400
1 600 64 — — — — — — — — — — — 600 790 — 440 — — — — — — — — 1 600
CTF dimensions for angle pattern valves.
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ISO/DIS 5752:2020(E)
8 © ISO 2020 – All rights reserved
Table 1 (continued)
Nominal size Basic series
a a a a
DN NPS 1 2 3 4 5 7 8 9 10 11 12 13 14 15 16 17 19 20 21 24 25 26 27
1 800 72 — — — — — — — — — — — 670 870 — 490 — — — — — — — — 1 800
2 000 80 — — — — — — — — — — — 760 950 — 540 — — — — — — — — 2 000
CTF dimensions for angle pattern valves.
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ISO/DIS 5752:2020(E)
© ISO 2020 – All rights reserved 9
Table 1 — (continued)
Nominal
Basic series
size

DN NPS 32 54 55 56 57 58 59 69 70 71 91 92 93 98 99 109 110 119 120 121 122 123 124 130 131

10 3/8 — — — — — — — — — — — 230 115 65 — — — — — — — — — — — 10
15 1/2 76 — 216 264 — 108 132 — — — — 230 115 65 — — — — — — — — — — — 15
20 3/4 89 229 229 273 114 114 137 — — — — 260 130 65 — — — — — — — — — — — 20

25 1 102 254 254 308 127 127 154 140 140 186 — 260 130 65 — — — — — — — — — — — 25

32 1 1/4 108 279 279 349 140 140 175 165 165 232 — 300 150 80 — — — — — — — — — — — 32

40 1 1/2 114 305 305 384 152 152 192 178 178 232 310 300 150 85 270 — — — — — — — — — — 40

50 2 133 368 368 451 184 184 226 216 216 279 350 350 175 100 300 — — 60 60 60 70 70 70 114 121 50

65 2 1/2 146 419 419 508 210 210 254 254 254 330 425 400 200 130 360 — — 67 67 67 83 83 83 — — 65

80 3 159 381 470 578 190 235 289 305 305 368 470 450 225 160 390 48 54 73 73 73 83 83 86 121 143 80

100 4 178 457 546 673 229 273 337 356 406 457 550 520 260 190 450 54 64 73 73 79 102 102 105 121 165 100

125 5 200 559 673 794 279 337 397 432 483 533 650 600 300 240 525 — — — — — — — — — — 125

150 6 222 610 705 914 305 353 457 508 559 610 750 700 350 250 600 59 78 98 98 136 159 159 159 130 194 150

200 8 279 737 832 1 022 368 416 511 660 711 762 950 800 400 320 750 73 102 127 127 165 206 206 206 152 219 200

250 10 311 838 991 1 270 419 495 635 787 864 914 1 150 900 — — 900 83 117 146 146 213 241 248 254 178 244 250

300 12 356 965 1 130 1 422 483 565 711 914 991 1 061 1 350 1 050 — — 1 050 92 140 181 181 229 292 305 305 — — 300

350 14 — 1 029 1 257 — 514 629 — 991 1 067 1 118 1 550 — — — 1 200 117 155 184 222 273 356 356 — — — 350

400 16 — 1 130 1 384 — 660 — — 1 092 1 194 1 245 1 750 — — — 1 350 133 178 191 232 305 384 384 — — — 400

450 18 — 1 219 1 537 — 737 — — — 1 346 1 397 1 950 — — — 1 500 149 200 203 264 362 451 468 — — — 450

500 20 — 1 321 1 664 — 826 — 1 650 — 1 473 — 2 150 — — — 1 650 159 216 219 292 368 451 533 — — — 500

600 24 — 1 549 1 943 — 991 — — — — — — — — — — 181 232 222 318 438 495 559 — — — 600

650 26 — — — — — — — — — — — — — — — — — — — — — — — — — 650
700 28 — — — — — — — — — — — — — — — — — — — — — — — — — 700
750 30 — — — — — — — — — — — — — — — — — 305 368 505 — — — — — 750
800 32 — — — — — — — — — — — — — — — — — — — — — — — — — 800
900 36 — — — — — — — — — — — — — — — — — 368 483 635 — — — — — 900
1 000 40 — — — — — —
...