oSIST prEN 17070:2016

SLOVENSKI STANDARD
01-december-2016
Industrijski ventili - Minimalne zahtevane lastnosti
Industrial valves - Minimum performance requirements
Industriearmaturen - Mindestleistungsanforderungen
Robinetterie industrielle - Exigences minimales de performance
Ta slovenski standard je istoveten z: prEN 17070
ICS:
23.060.01 Ventili na splošno Valves in general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2016
ICS 23.060.01
English Version
Industrial valves - Minimum performance requirements
Robinetterie industrielle - Exigences minimales de Industriearmaturen - Mindestleistungsanforderungen
performance
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 69.
If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
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.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2016 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 17070:2016 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Minimum performances . 5
4.1 Seat tightness P12: maximum allowable leakage rate . 5
4.1.1 Purpose . 5
4.1.2 Test method . 6
4.1.3 Acceptance criteria . 6
4.2 Endurance test . 6
4.2.1 Cycle test for isolating valves . 6
4.2.2 Endurance test for check valves . 8
Annex A (normative) Cycle test procedure . 10
A.1 General . 10
A.2 Test method . 10
A.3 Definition of the cycle . 10
A.4 Cycle test rig and test procedure . 11
Annex B (informative) Endurance rig test description . 13
Annex C (normative) Endurance test procedure of check valves . 14
C.1 General . 14
C.2 Test procedure . 14
European foreword
This document (prEN 17070:2016) has been prepared by Technical Committee CEN/TC 69 “Industrial
valves”, the secretariat of which is held by AFNOR.
This document is currently submitted to the CEN Enquiry.
Introduction
The purpose of this document is to define the minimal performances required for industrial valves.
1 Scope
This European Standard defines the minimum performance requirements which apply to industrial
valves. It specifies test procedures and acceptance criteria for each performance requirement of this
European Standard.
Valves for specific use, where such a performance requirements already exists are excluded from this
standard:
a) valves to be used in water supply pipe system in accordance with EN 1074 (all parts);
b) valves to be used in gas distribution system with pressure lower than 16 bar in accordance with
EN 13774;
c) control valves in accordance with EN 1349;
d) safety devices in accordance with EN ISO 4126 (all parts).
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
EN 736-1, Valves — Terminology — Part 1: Definition of types of valves
EN 736-2, Valves — Terminology — Part 2: Definition of components of valves
EN 736-3, Valves — Terminology — Part 3: Definition of terms
EN 12266-1:2012, Industrial valves — Testing of metallic valves — Part 1: Pressure tests, test procedures
and acceptance criteria — Mandatory requirements
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 736-1, EN 736-2 and EN 736-3
and the following apply.
3.1
cycle
movement of the obturator from the fully opened to the fully closed position and return
4 Minimum performances
4.1 Seat tightness P12: maximum allowable leakage rate
4.1.1 Purpose
The test shall confirm the capability of the seat(s) to conform to the maximum allowable leakage rate
given in Table 1:
a) at the time of manufacture;
b) in the direction(s) for which the valve is designed.
4.1.2 Test method
The test procedure, the test pressure and the test duration of test reference P12 defined in
EN 12266-1:2012, A.4 shall be applied.
4.1.3 Acceptance criteria
The maximum allowable leakage rate is given in Table 1:
Table 1 — Maximum allowable leakage rate
Resilient seated valves Metal seated valves Metal seated check
including check valves except check valves valves
Rate A Rate B Rate G
4.2 Endurance test
4.2.1 Cycle test for isolating valves
4.2.1.1 Purpose
The test shall confirm the capacity of a valves range to keep the maximum allowable leakage rate after a
number of cycles given in Table 2 to
...