EN 12760:2016

Industrial valves - Socket welding ends for steel valves

This European Standard specifies the dimensions of socket welding ends of steel valves designed to be socket welded to standardised pipes in the size range DN 6 to DN 65.

Industriearmaturen - Schweißmuffenenden für Armaturen aus Stahl

Diese Europäische Norm legt die Maße von Schweißmuffenenden für Armaturen aus Stahl fest, die zum Einschweißen von genormten Rohren im Nennweitenbereich von DN 6 bis DN 65 bestimmt sind.

Robinetterie industrielle - Extrémités à emboîter et à souder pour appareils de robinetterie en acier

La présente norme européenne spécifie les dimensions des extrémités à emboîter et à souder pour les appareils de robinetterie en acier conçus pour être emboîtés et soudés sur des tubes normalisés dans la gamme de dimensions DN 6 à DN 65.

Industrijski ventili - Notranji varilni nastavki za jeklene ventile

Ta evropski standard določa mere notranjih varilnih nastavkov za jeklene ventile, ki so zasnovani za namestitev z varilnim nastavkom na standardizirane cevi v razponu od DN 6 do DN 65.

General Information

• Status: Published
• Publication Date: 19-Apr-2016
• Withdrawal Date: 30-Oct-2016
• ICS: 23.040.60 - Flanges, couplings and joints
• Technical Committee: CEN/TC 69 - Industrial valves
• Drafting Committee: CEN/TC 69/WG 1 - Basic standards
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Start Date: 15-Feb-2022
• Completion Date: 14-Apr-2025
• Ref Project: SIST EN 12760:2016 - Industrial valves - Socket welding ends for steel valves

Relations

• Replaces: EN 12760:1999 - Valves - Socket welding ends for steel valves
• Effective Date: 27-Apr-2016

Overview

EN 12760:2016 - Industrial valves: Socket welding ends for steel valves is a CEN European Standard that specifies the dimensional requirements for socket welding ends on steel valve bodies intended to be socket-welded to standardized pipes. The standard covers nominal sizes DN 6 to DN 65 and replaces EN 12760:1999. It defines the form, internal diameters, socket depths and designation rules required to ensure mechanical compatibility and safe welding practices for small-diameter steel valves.

Key topics and technical requirements

• Scope and sizes: Dimensions are specified for valve socket welding ends in the size range DN 6–DN 65.
• Socket geometry: The standard prescribes the form of the socket welding end (figure reference) and tabulated values for:
  • Inside diameter of socket (B) - max/min per DN (e.g., DN 6: max 11.15 mm, min 10.65 mm; DN 65: max 77.40 mm, min 76.80 mm).
  • Depth of socket (S) - minimum depths by DN (e.g., DN 6–15: 10 mm; DN 50–65: 16 mm).
• Welding surface width (C): Must be at least 0.81 × pipe wall thickness (per ISO 4200) or 3 mm, whichever is greater.
• Recommended welding detail (Annex A):
  • Fillet weld width (Cx) recommended ≥ 1.09 × pipe wall thickness or 3 mm, whichever is greater.
  • Leave a gap of approximately 2 mm between the pipe end and the bottom of the socket before welding.
• Designation: A socket welding end is designated as: “socket welding end (SW) EN 12760 DN ” (e.g., Socket welding end (SW) EN 12760 DN 50).
• Normative references: EN 736-1/2/3 (valve terminology) and ISO 4200 (plain end steel tubes).

Applications and practical value

• Ensures interchangeability and dimensional compatibility between steel valves and standardized piping systems for small bore applications.
• Used by valve manufacturers to design and produce consistent socket welding ends.
• Used by piping designers, fabricators and welding specialists to select valves, prepare welding procedures, and verify clearances/gaps.
• Useful for procurement and QA to specify valve end preparations and acceptance criteria in purchase orders and inspection plans.
• Applicable in industries with small-diameter piping systems such as instrumentation, chemical processing, HVAC, and utilities.

Related standards

• EN 736 series - Valve terminology (Parts 1–3)
• ISO 4200 - Plain end steel tubes, welded and seamless - general tables of dimensions and masses per unit length

Keywords: EN 12760:2016, socket welding ends, steel valves, DN 6–DN 65, ISO 4200, fillet weld width, valve dimensions, socket depth.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Industrijski ventili - Notranji varilni nastavki za jeklene ventileIndustriearmaturen - Schweißmuffenenden für Armaturen aus StahlRobinetterie industrielle - Extrémités à emboîter et à souder pour appareils de robinetterie en acierIndustrial valves - Socket welding ends for steel valves23.060.01Ventili na splošnoValves in generalICS:Ta slovenski standard je istoveten z:EN 12760:2016SIST EN 12760:2016en,fr,de01-julij-2016SIST EN 12760:2016SLOVENSKI
STANDARDSIST EN 12760:20001DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 12760
April
t r s x ICS
t uä r v rä x r Supersedes EN
s t y x rã s { { {English Version
Industrial valves æ Socket welding ends for steel valves Robinetterie industrielle æ Extrßmitßs à emboîter et à souder pour appareils de robinetterie en acier
Industriearmaturen æ Schweißmuffenenden für Armaturen aus Stahl This European Standard was approved by CEN on
u March
t r s xä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels
t r s x CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s t y x rã t r s x ESIST EN 12760:2016

Page European foreword . 3 1 Scope . 4 2 Normative references . 4 3 Terms and definitions . 4 4 Requirements . 4 5 Designation. 5 Annex A (informative)
Recommended welding detail . 6
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