EN ISO 15761:2020

Steel gate, globe and check valves for sizes DN 100 and smaller, for the petroleum and natural gas industries (ISO 15761:2020)

This document specifies the requirements for a series of compact steel gate, globe and check valves for petroleum and natural gas industry applications.
It is applicable to valves of:
—     nominal sizes DN 8, 10, 15, 20, 25, 32, 40, 50, 65, 80 and 100,
—     corresponding to nominal pipe sizes NPS ¼, ⅜, ½, , 1, 1¼, 1½, 2, 2½, 3 and 4,
—     pressure designations PN 16, 25, 40, 63, 100, 250 and 400, and
—     pressure designations Class 150, 300, 600, 800, 1 500 and 2 500.
Class 800 is not a listed class designation, but is an intermediate Class number widely used for socket welding and threaded end compact valves covered by this document. There is no equivalent PN designation.
This document includes provisions for the following valve characteristics:
—     outside screw with rising stems (OS & Y): in sizes 8 ≤ DN ≤ 100;
—     inside screw with rising stems (ISRS): in sizes 8 ≤ DN ≤ 65 with a pressure designation PN ≤ 100 or Class ≤ 800;
—     socket welding or threaded ends: in sizes 8 ≤ DN ≤ 65;
—     flanged or butt-welding ends excluding flanged end Class 800;
—     bonnet joint construction that is bolted, welded or threaded with seal weld;
—     bonnet joint construction that uses a union nut with a pressure designation PN ≤ 45 or Class ≤ 800;
—     body seat openings;
—     materials: as specified;
—     testing and inspection.
This document covers valve end flanges in accordance with EN 1092-1 and ASME B16.5 and valve body ends having tapered pipe threads in accordance with ISO 7-1 or ASME B1.20.1. It is applicable to extended body construction in sizes 15 ≤ DN ≤ 50 with pressure designations Class 800 and Class 1 500 and to bellows and bellows assembly construction adaptable to gate or globe valves in sizes 8 ≤ DN ≤ 50. Also covered are requirements for bellows stem seal type testing.

Schieber, Kugel- und Rückschlagventile aus Stahl mit Nennweiten DN 100 und kleiner für die Erdöl- und Erdgasindustrie (ISO 15761:2020)

Robinets-vannes, robinets à soupape et clapets de non retour en acier de dimensions DN 100 et inférieures, pour les industries du pétrole et du gaz naturel (ISO 15761:2020)

Le présent document spécifie les exigences pour une série de robinets-vannes, robinets à soupape et clapets de non-retour, en acier massif, pour des applications dans les industries du pétrole et du gaz naturel.
Elle est applicable aux appareils de robinetterie:
—     de diamètres nominaux DN 8, 10, 15, 20, 25, 32, 40, 50, 65, 80 et 100,
—     correspondant aux dimensions nominales de tuyauterie NPS ¼, ⅜, ½, , 1, 1¼, 1½, 2, 2½, 3 et 4,
—     affichant des désignations de pression PN 16, 25, 40, 63, 100, 250 et 400, et
—     affichant des désignations de pression Class 150, 300, 600, 800, 1 500 et 2 500.
Class 800 n'est pas une désignation de pression Class énumérée. C'est un numéro Class intermédiaire largement utilisé pour les appareils de robinetterie en acier massif à extrémités à emboîter et à souder et extrémités filetées couverts par le présent document. Il n'existe pas de désignation PN équivalente.
Le présent document contient des dispositions relatives aux caractéristiques des appareils de robinetterie suivants:
—     tiges montantes à filetage extérieur (OS & Y): de dimensions 8 ≤ DN ≤ 100;
—     tiges montantes à filetage intérieur (ISRS): de dimensions 8 ≤ DN ≤ 65 avec une désignation de la pression PN ≤ 100 ou Class ≤ 800;
—     extrémités à emboîter et à souder ou extrémités filetées, de dimensions 8 ≤ DN ≤ 65;
—     extrémités à brides ou extrémités à souder en bout, excepté les extrémités à brides de Class 800;
—     assemblage du chapeau qui est boulonné, soudé ou fileté avec une soudure d'étanchéité;
—     assemblage du chapeau utilisant un écrou de raccord union avec une désignation de pression correspondant à PN ≤ 45 ou Class ≤ 800;
—     ouvertures au siège de l'appareil de robinetterie;
—     matériaux: comme spécifié;
—     essais et contrôle.
Le présent document couvre les extrémités à brides des appareils de robinetterie conformes à l'EN 1092-1 et à l'ASME B16.5, ainsi que les extrémités de corps des appareils de robinetterie avec des filetages de tuyauterie coniques conformes à l'ISO 7-1 ou à l'ASME B1.20.1. Il s'applique aux constructions à corps rallongés de dimensions 15 ≤ DN ≤ 50 avec des désignations de pression Class 800 et Class 1 500, et aux constructions à soufflets et aux joints à soufflets adaptables aux robinets-vannes ou aux robinets à soupape de dimensions 8 ≤ DN ≤ 50. Il couvre également des exigences applicables aux essais de type des étanchéités de tige par soufflet.

Tablasti, krogelni in nepovratni ventili za velikosti DN 100 in manj za industrijo nafte in zemeljskega plina (ISO 15761:2020)

General Information

• Status: Published
• Publication Date: 15-Sep-2020
• Withdrawal Date: 30-Mar-2021
• ICS: 75.180.20 - Processing equipment
• Technical Committee: CEN/TC 12 - Materials, equipment and offshore structures for petroleum and natural gas industries
• Drafting Committee: CEN/TC 12 - Materials, equipment and offshore structures for petroleum and natural gas industries
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 16-Sep-2020
• Completion Date: 16-Sep-2020
• Ref Project: SIST EN ISO 15761:2020 - Steel gate, globe and check valves for sizes DN 100 and smaller, for the petroleum and natural gas industries (ISO 15761:2020)

Relations

• Replaces: EN ISO 15761:2002 - Steel gate, globe and check valves for sizes DN 100 and smaller, for the petroleum and natural gas industries (ISO 15761:2002)
• Effective Date: 23-Sep-2020

Standards Content (Sample)

SLOVENSKI STANDARD
01-november-2020
Nadomešča:
SIST EN ISO 15761:2004
Tablasti, krogelni in nepovratni ventili za velikosti DN 100 in manj za industrijo
nafte in zemeljskega plina (ISO 15761:2020)
Steel gate, globe and check valves for sizes DN 100 and smaller, for the petroleum and
natural gas industries (ISO 15761:2020)
Schieber, Kugel- und Rückschlagventile aus Stahl mit Nennweiten DN 100 und kleiner
für die Erdöl- und Erdgasindustrie (ISO 15761:2020)
Robinets-vannes, robinets à soupape et clapets de non retour en acier de dimensions
DN 100 et inférieures, pour les industries du pétrole et du gaz naturel (ISO 15761:2020)
Ta slovenski standard je istoveten z: EN ISO 15761:2020
ICS:
23.060.01 Ventili na splošno Valves in general
75.180.20 Predelovalna oprema Processing equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 15761
EUROPEAN STANDARD
NORME EUROPÉENNE
September 2020
EUROPÄISCHE NORM
ICS 75.180.20 Supersedes EN ISO 15761:2002
English Version
Steel gate, globe and check valves for sizes DN 100 and
smaller, for the petroleum and natural gas industries (ISO
15761:2020)
Robinets-vannes, robinets à soupape et clapets de non Schieber, Kugel- und Rückschlagventile aus Stahl mit
retour en acier de dimensions DN 100 et inférieures, Nennweiten DN 100 und kleiner für die Erdöl- und
pour les industries du pétrole et du gaz naturel (ISO Erdgasindustrie (ISO 15761:2020)
15761:2020)
This European Standard was approved by CEN on 22 August 2020.

CEN members 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 CEN-CENELEC Management Centre 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 CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 15761:2020 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 15761:2020) has been prepared by Technical Committee ISO/TC 153 "Valves"
in collaboration with Technical Committee CEN/TC 12 “Materials, equipment and offshore structures
for petroleum, petrochemical and natural gas industries” the secretariat of which is held by NEN.
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 March 2021, and conflicting national standards shall
be withdrawn at the latest by March 2021.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 15761:2002.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 15761:2020 has been approved by CEN as EN ISO 15761:2020 without any modification.

INTERNATIONAL ISO
STANDARD 15761
Second edition
2020-08
Steel gate, globe and check valves
for sizes DN 100 and smaller, for the
petroleum and natural gas industries
Robinets-vannes, robinets à soupape et clapets de non retour en acier
de dimensions DN 100 et inférieures, pour les industries du pétrole et
du gaz naturel
Reference number
ISO 15761:2020(E)
©
ISO 2020
ISO 15761:2020(E)
© ISO 2020
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
ISO copyright office
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Published in Switzerland
ii © ISO 2020 – All rights reserved

ISO 15761:2020(E)
Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 3
4 Pressure/temperature ratings . 3
4.1 Valve ratings . 3
4.2 Temperature constraints . 4
5 Design . 4
5.1 Reference design . 4
5.2 Flow passageway . 5
5.3 Wall thickness . 6
5.4 Valve body . 7
5.4.1 General. 7
5.4.2 Socket welding ends . 7
5.4.3 Threaded ends . 8
5.4.4 Flanged ends . . 9
5.4.5 Butt-welding ends.10
5.4.6 Body seats .11
5.5 Valve bonnet or cover .11
5.6 Obturator .13
5.6.1 Seating surfaces .13
5.6.2 Gate valve obturators .13
5.6.3 Globe valve obturators .13
5.6.4 Check valve obturators .13
5.7 Stem .14
5.8 Stem nut or stem bushing .16
5.9 Packing, packing chamber, and gland .16
5.10 Packing retention .17
5.11 Handwheel .17
6 Materials .17
6.1 Trim materials .17
6.2 Materials other than trim .17
7 Marking .18
7.1 Legibility .18
7.2 Body marking .18
7.3 Ring joint groove marking .20
7.4 Identification plate marking .20
7.5 Weld fabrication marking .21
8 Testing and inspection .21
8.1 Pressure tests .21
8.1.1 General.21
8.1.2 Shell test .
...