oSIST prEN ISO 8233:2023

Thermoplastics valves - Torque - Test method (ISO/DIS 8233:2023)

This document specifies a test method for the determination of the opening, closing and running torque of thermoplastics valves. This test is considered to be performed as part of the initial type testing.
This document applies to all types of thermoplastics valves intended to be used for the transport of fluids.
NOTE 1 Examples of valve types tested with this method are in ISO 16135, ISO 16136, ISO 16138, ISO 16139, ISO 21787, ISO 4437-4, ISO 16486-4, EN 12201-4, EN 1555-4.
It does not specify the relationship between the torque and its possible increase after valve prolonged use at specific working condition or materials wear/chemical aggression.
NOTE 2 Concerning the chemical aggression of the materials, a collection of data is reported in ISO/TR 10358; concerning the endurance test necessary to confirm the ability of hand-operated plastics valves to withstand prolonged use with repeated opening and closure, further information is provided in ISO 8659.

Armaturen aus Thermoplasten - Drehmoment - Prüfverfahren (ISO/DIS 8233:2023)

Robinets en matériaux thermoplastiques - Couple de manoeuvre - Méthode d'essai (ISO/DIS 8233:2023)

Plastomerni ventili - Vrtilni moment - Preskusna metoda (ISO/DIS 8233:2023)

General Information

• Status: Not Published
• Public Enquiry End Date: 03-Apr-2023
• ICS: 23.060.01 - Valves in general
• ICS: 83.140.30 - Plastics pipes and fittings for non fluid use
• Technical Committee: IHPV - Hydraulics and pneumatics
• Current Stage: 4020 - Public enquire (PE) (Adopted Project)
• Start Date: 17-Jan-2023
• Due Date: 06-Jun-2023
• Completion Date: 06-Apr-2023
• Ref Project: prEN ISO 8233 - Thermoplastics valves - Torque - Test method (ISO/DIS 8233:2023)

Relations

• Replaces: SIST EN 28233:1997 - Thermoplastics valves - Torque - Test method (ISO 8233:1988)
• Effective Date: 22-Jun-2022
• Revised: SIST EN 28233:1997 - Thermoplastics valves - Torque - Test method (ISO 8233:1988)
• Effective Date: 18-Jan-2023
• Revised: SIST EN 28233:1997 - Thermoplastics valves - Torque - Test method (ISO 8233:1988)
• Effective Date: 19-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
oSIST prEN ISO 8233:2023
01-marec-2023
Nadomešča:
SIST EN 28233:1997
Plastomerni ventili - Vrtilni moment - Preskusna metoda (ISO/DIS 8233:2023)
Thermoplastics valves - Torque - Test method (ISO/DIS 8233:2023)
Armaturen aus Thermoplasten - Drehmoment - Prüfverfahren (ISO/DIS 8233:2023)
Robinets en matériaux thermoplastiques - Couple de manoeuvre - Méthode d'essai
(ISO/DIS 8233:2023)
Ta slovenski standard je istoveten z: prEN ISO 8233
ICS:
23.060.01 Ventili na splošno Valves in general
83.140.30 Polimerne cevi in fitingi za Plastics pipes and fittings for
snovi, ki niso tekočine non fluid use
oSIST prEN ISO 8233:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN ISO 8233:2023

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oSIST prEN ISO 8233:2023
DRAFT INTERNATIONAL STANDARD
ISO/DIS 8233
ISO/TC 138/SC 7 Secretariat: UNI
Voting begins on: Voting terminates on:
2023-01-11 2023-04-05
Thermoplastics valves — Torque — Test method
Robinets en matériaux thermoplastiques — Couple de manoeuvre — Méthode d'essai
ICS: 83.140.30; 23.060.01
This document is circulated as received from the committee secretariat.
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
ISO/CEN PARALLEL PROCESSING
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,
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 8233:2023(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 2023

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oSIST prEN ISO 8233:2023
ISO/DIS 8233:2023(E)
DRAFT INTERNATIONAL STANDARD
ISO/DIS 8233
ISO/TC 138/SC 7 Secretariat: UNI
Voting begins on: Voting terminates on:

Thermoplastics valves — Torque — Test method
Robinets en matériaux thermoplastiques — Couple de manoeuvre — Méthode d'essai
ICS: 83.140.30; 23.060.01
This document is circulated as received from the committee secretariat.
COPYRIGHT PROTECTED DOCUMENT
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
© ISO 2023
ISO/CEN PARALLEL PROCESSING
THEREFORE SUBJECT TO CHANGE AND MAY
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
NOT BE REFERRED TO AS AN INTERNATIONAL
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on STANDARD UNTIL PUBLISHED AS SUCH.
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
IN ADDITION TO THEIR EVALUATION AS
or ISO’s member body in the country of the requester. BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
ISO copyright office
USER PURPOSES, DRAFT INTERNATIONAL
CP 401 • Ch. de Blandonnet 8
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
CH-1214 Vernier, Geneva
POTENTIAL TO BECOME STANDARDS TO
Phone: [phone]
WHICH REFERENCE MAY BE MADE IN
Reference number
Email: [e-mail]
NATIONAL REGULATIONS.
Website: www.iso.org ISO/DIS 8233:2022(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
Published in Switzerland
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
ii
  © ISO 2023 – All rights reserved
PROVIDE SUPPORTING DOCUMENTATION. © ISO 2022

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oSIST prEN ISO 8233:2023
ISO/DIS 8233:2022(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Test specimen . 2
5 Test condition .2
5.1 General . 2
5.2 Conditioning time . 2
5.3 Test pressure . 3
6 Apparatus . 3
7 Procedure for torque test .3
8 Test report . 4
Bibliography . 5
iii
© ISO 2022 – All rights reserved

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oSIST prEN ISO 8233:2023
ISO/DIS 8233:2022(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 138, Plastics pipes, fittings and valves
for the transport of fluids, Subcommittee SC 7, Valves and auxiliary equipment of plastics materials, in
collaboration with the European Committee for Standardization (CEN) Technical Committee CEN/
TC 69, Industrial valves, in accordance with the Agreement on technical cooperation between ISO and
CEN (Vienna Agreement).
This second edition cancels and replaces the first edition (ISO 8233:1988), which has been technically
revised.
The main changes are as follows:
— normative references and terms and definitions clauses have been updated;
— specification of the type of valve in the test report and explanation for the opening torque.
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 2022 – All rights reserved

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oSIST prEN ISO 8233:2023
ISO/DIS 8233:2022(E)
Introduction
The aim of this document is to establish certain basic requirements for the torque testing of plastics
valves to ensure that uniform test methods are adopted. This document is intended to be considered in
conjunction with any specific requirements in particular product standards applicable to the individual
types of valves.
v
© ISO 2022 – All rights reserved

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