EN ISO 17078-2:2026

• Abstract:

  This document provides requirements for subsurface flow-control devices used in side-pocket mandrels intended for use in the worldwide petroleum and natural gas industry. This document addresses injection-pressure-operated (IPO), production-pressure-operated (PPO), pilot, orifice, tubing-retrievable, and dummy flow-control devices. It includes requirements for selecting, designing, manufacturing, quality control, testing, and preparation for the shipping of flow-control devices. Additionally, it includes information regarding performance testing and calibration requirements.; The installation and retrieval of flow-control devices is outside the scope of this document. Additionally, this document is not applicable to flow-control devices with concentric axes.; This document does not include requirements for side-pocket mandrels, running, pulling, kick-over tools, or latches. Reconditioning of used flow-control devices is outside the scope of this document.; This document supplements API Spec 19G2, 2nd edition (2020), the requirements of which are applicable with the exceptions specified in this document.

• Status: Published
• Publication Date: 01-Sep-2026
• ICS: 75.180.10 - Exploratory, drilling and extraction equipment
• Technical 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: 02-Sep-2026
• Completion Date: 02-Sep-2026
• Ref Project: SIST EN ISO 17078-2:2026 - Oil and gas industries including lower carbon energy - Drilling, production and injection equipment - Part 2: Flow-control devices for side-pocket mandrels (ISO 17078-2:2026)

• Replaces: EN ISO 17078-2:2007/AC:2009 - Petroleum and natural gas industries - Drilling and production equipment - Part 2: Flow-control devices for side-pocket mandrels (ISO 17078-2:2007/Cor 1:2009)
• Effective Date: 04-Oct-2023
• Replaces: EN ISO 17078-2:2007 - Petroleum and natural gas industries - Drilling and production equipment - Part 2: Flow-control devices for side-pocket mandrels (ISO 17078-2:2007)
• Effective Date: 04-Oct-2023
• Consolidated By: ISO 17078-2:2026 - Oil and gas industries including lower carbon energy — Drilling, production and injection equipment — Part 2: Flow-control devices for side-pocket mandrels
• Effective Date: 12-Feb-2026

Overview

EN ISO 17078-2:2026 specifies requirements for subsurface flow-control devices used in side-pocket mandrels for the global oil, gas, and lower carbon energy industries. Developed by CEN and aligned with ISO 17078-2:2026, this standard addresses the specification, design, manufacturing, quality control, and testing of flow-control devices such as injection-pressure-operated (IPO), production-pressure-operated (PPO), pilot, orifice, tubing-retrievable, and dummy flow-control devices. It also covers performance testing and calibration requirements to ensure equipment reliability and operational safety.

This document supplements requirements from API Spec 19G2, 2nd edition (2020), with additional provisions specific to European and international industry needs. It does not address installation, retrieval, or reconditioning of devices, nor does it apply to concentric-axis devices, side-pocket mandrels, or running/pulling tools.

Key Topics

• Types of Flow-Control Devices: The standard covers multiple device types used for various applications in oil and gas wells, including:

  • Injection-pressure-operated (IPO)
  • Production-pressure-operated (PPO)
  • Pilot-operated
  • Orifice and Venturi types
  • Tubing-retrievable devices
  • Dummy (blanking) devices

• Design and Manufacture Requirements: Ensures all flow-control devices meet strict criteria for selection, design, materials, manufacturing processes, and dimensional tolerances. Emphasizes compatibility with side-pocket mandrels and well environments.

• Quality Control and Testing: Provides detailed requirements for quality management (referencing ISO 9000), validation testing, functional testing, performance assessments, and calibration. Devices are subject to a range of tests including pressure, leakage, durability, and flow validation, ensuring compliance with the highest safety and reliability standards.

• Compliance and Supplementation: Aligns with and supplements API Spec 19G2, 2nd edition, ensuring both global and regional regulatory requirements are met. Calls for the use of ISO 17078-1, -3, and -4 for related equipment and practices.

Applications

EN ISO 17078-2:2026 applies across the upstream oil and gas sector, including operations focused on:

• Gas Lift and Well Intervention: Provides standards for devices essential in gas lift systems, which improve production efficiency and manage wellbore pressures.
• Production Optimization: Flow-control devices help regulate injection and production flows, maximizing hydrocarbon recovery while minimizing operational risk.
• Well Integrity Assurance: Devices meeting the requirements of ISO 17078-2:2026 help maintain well control and containment, reducing risks associated with leaks or equipment failure.
• Lower Carbon Energy Initiatives: Applicable to emerging fields within lower-carbon operations where side-pocket mandrel technology is used for efficient resource management.

Manufacturers, suppliers, and operators in the petroleum and natural gas industry rely on this standard to ensure product integrity, safety, and interoperability. The requirements facilitate seamless integration and reliable performance of flow-control devices in various well conditions worldwide.

Related Standards

• API Spec 19G2: Flow-control Devices for Side-pocket Mandrels (Referenced throughout as a baseline, with supplemented requirements)
• ISO 9000: Quality Management Systems - Fundamentals and Vocabulary
• ISO 7-1: Pipe Threads Where Pressure-tight Joints Are Made on the Threads
• ISO 17078-1: Drilling and Production Equipment - Side-pocket Mandrels
• ISO 17078-3: Running Tools, Pulling Tools, and Kick-over Tools for Side-pocket Mandrels
• ISO 17078-4: Practices for Side-pocket Mandrels and Related Equipment

By following EN ISO 17078-2:2026, organizations demonstrate commitment to internationally recognized best practices, ensuring flow-control device safety, performance, and compatibility within oil, gas, and new energy applications.

SLOVENSKI STANDARD
01-november-2026
Naftna in plinska industrija, vključno z nizkoogljično energijo - Vrtalna in
proizvodna oprema - 2. del: Naprave za regulacijo pretoka za vpenjalne osi s
stranskimi žepi (ISO 17078-2:2026)
Oil and gas industries including lower carbon energy - Drilling, production and injection
equipment - Part 2: Flow-control devices for side-pocket mandrels (ISO 17078-2:2026)
Öl- und Gasindustrie einschließlich kohlenstoffarmer Energieträger - Bohr-, Förder- und
Einpressausrüstung - Teil 2: Durchfluss-Regelvorrichtungen für Gaslift-Ventile (ISO
17078-2:2026)
Industries du pétrole et du gaz naturel - Équipement de forage et de production - Partie
2: Dispositifs de régulation de la vitesse d'écoulement pour raccords à poche latérale
(ISO 17078-2:2026)
Ta slovenski standard je istoveten z: EN ISO 17078-2:2026
ICS:
75.180.10 Oprema za raziskovanje, Exploratory, drilling and
vrtanje in odkopavanje extraction equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 17078-2
EUROPEAN STANDARD
NORME EUROPÉENNE
September 2026
EUROPÄISCHE NORM
ICS 75.180.10 Supersedes EN ISO 17078-2:2007, EN ISO 17078-
2:2007/AC:2009
English Version
Oil and gas industries including lower carbon energy -
Drilling, production and injection equipment - Part 2:
Flow-control devices for side-pocket mandrels (ISO
17078-2:2026)
Industries du pétrole et du gaz, y compris les énergies Öl- und Gasindustrie einschließlich kohlenstoffarmer
à faible teneur en carbone - Equipement de forage, de Energieträger - Bohr-, Förder- und Einpressausrüstung
production et d'injection - Partie 2: Dispositifs de - Teil 2: Durchfluss-Regelvorrichtungen für Gaslift-
régulation de débit pour raccords à poche latérale (ISO Ventile (ISO 17078-2:2026)
17078-2:2026)
This European Standard was approved by CEN on 9 July 2026.

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, Türkiye 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
© 2026 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 17078-2:2026 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 17078-2:2026) has been prepared by Technical Committee ISO/TC 67 "Oil and
gas industries including lower carbon energy" in collaboration with Technical Committee CEN/TC 12
“Oil and gas industries including lower carbon energy” 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 2027, and conflicting national standards shall
be withdrawn at the latest by March 2027.
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 17078-2:2007.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
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, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO 17078-2:2026 has been approved by CEN as EN ISO 17078-2:2026 without any
modification.
International
Standard
ISO 17078-2
Second edition
Oil and gas industries including
2026-08
lower carbon energy — Drilling,
production and injection
equipment —
Part 2:
Flow-control devices for side-pocket
mandrels
Industries du pétrole et du gaz, y compris les énergies à faible
teneur en carbone — Equipement de forage, de production et
d’injection —
Partie 2: Dispositifs de régulation de débit pour raccords à poche
latérale
Reference number
ISO 17078-2:2026(en) © ISO 2026

ISO 17078-2:2026(en)
© ISO 2026
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
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii
ISO 17078-2:2026(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Supplements to API Spec 19G2, 2nd edition (2020) . 2
4.1 General requirements .2
4.2 Technical specification .2
4.3 Validation and device functional testing overview .3
Bibliography . 4

iii
ISO 17078-2:2026(en)
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,
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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 document should be noted. This document was drafted in accordance with the editorial rules of the
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ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a)
patent(s) which may be required to implement this document. However, implementers are caut
...