SIST EN 12162:2002
(Main)Liquid pumps - Safety requirements - Procedure for hydrostatic testing
Liquid pumps - Safety requirements - Procedure for hydrostatic testing
This standard describes the hydrostatic test to be applied, to internal pressure containing parts of all liquid pumps, including any auxiliary equipment making up a pump unit as described in the scope of prEN 809, except: domestic pumps of a power less than 200 W (EN 60335-2-51), circulation pumps (EN 1151) and electric pumps (EN 60335-2-41).
Flüssigkeitspumpen - Sicherheitstechnische Anforderungen - Prozessverfahren für hydrostatische Druckprüfung
Anwendungsbereich
Diese Europäische Norm legt die hydrostatische Prüfung fest, die für druckbeaufschlagte Bauteile aller Bauarten von Flüssigkeitspumpen, einschließlich jeglicher Hilfseinrichtungen, die zu einem Pumpenaggregat gehören, wie dies im Anwendungsbereich von EN 809:1998 beschrieben ist, anzuwenden ist. Ausgenommen sind:
3 Wasserpumpen für den Hausgebrauch innerhalb des Anwendungsbereiches von EN 60335-2-41:1996 oder EN 60335-2-51:1997;
3 Heizungsumwälzpumpen für den Hausgebrauch innerhalb des Anwendungsbereiches von EN 1151:1999;
3 Tauchmotorpumpen innerhalb des Anwendungsbereiches von prEN 13386:1998.
3 Feuerwehrpumpen mit Entlüftungseinrichtung innerhalb des Anwendungsbereiches von prEN 1028-1:1993 und prEN 1028-2:1993.
3 Pumpenbauteile mit einem zulässigen Betriebsüberdruck kleiner 0,1 bar.
Inbegriffen sind Anforderungen für das Aufbringen unterschiedlicher hydrostatischer Prüfdrücke für Bereiche innerhalb einer Pumpe, die unterschiedlichen, maximal zulässigen Betriebsdrücken ausgesetzt sind.
Diese Norm gilt für Pumpen und Pumpenaggregate, die nach der Veröffentlichung dieser Norm im Markt eingeführt werden.
Pompes pour liquides - Exigences de sécurité - Procédure d'essai hydrostatique
1 Domaine d'application
La présente norme spécifie les essais hydrostatiques devant etre appliqués aux parties sous pression de tous les types de pompes pour liquides soumises a une pression interne, y compris tout équipement auxiliaire constituant une unité de pompe telle que décrite dans le domaine d'application de l'EN 809, a l'exception :
3 des pompes pour l'eau a usage domestique du domaine d'application des EN 60335-2-41 :1996 et
EN 60335-2-51 :1997 ;
3 des pompes de circulation domestiques du domaine d'application de l'EN 1151 :1999 ;
3 des pompes submersibles du domaine d'application du prEN 13386 :1998 ;
3 des pompes a usage incendie avec dispositif d'amorçage du domaine d'application des prEN 1028-1 :1993 et prEN 1028-2 :1993 ;
3 des éléments de pompe avec une pression de service admissible en-dessous de 0,1 bar.
Des prescriptions sont inclues pour des applications a des essais hydrostatiques a des pressions différentes pour séparer les zones a l'intérieur de la pompe qui sont soumises a différentes pressions maximales admissibles de service.
La présente norme s'applique pour les pompes et groupes motopompes qui sont placés sur le marché apres la date de publication de la norme.
Liquid pumps - Safety requirements - Procedure for hydrostatic testing
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 12162:2002
01-januar-2002
Liquid pumps - Safety requirements - Procedure for hydrostatic testing
Liquid pumps - Safety requirements - Procedure for hydrostatic testing
Flüssigkeitspumpen - Sicherheitstechnische Anforderungen - Prozessverfahren für
hydrostatische Druckprüfung
Pompes pour liquides - Exigences de sécurité - Procédure d'essai hydrostatique
Ta slovenski standard je istoveten z: EN 12162:2001
ICS:
23.080 ýUSDONH Pumps
SIST EN 12162:2002 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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EUROPEAN STANDARD
EN 12162
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2001
ICS 23.080
English version
Liquid pumps - Safety requirements - Procedure for hydrostatic
testing
Pompes pour liquides - Exigences de sécurité - Procédure Flüssigkeitspumpen - Sicherheitstechnische Anforderungen
d'essai hydrostatique - Prozessverfahren für hydrostatische Druckprüfung
This European Standard was approved by CEN on 18 January 2001.
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 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 Management Centre has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2001 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 12162:2001 E
worldwide for CEN national Members.
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EN 12162:2001
Contents
Foreword.3
Introduction .4
1 Scope .5
2 Normative references .5
3 Terms and definitions.6
4 General.6
5 Timing of the test .6
6 Preparation for testing .7
7 Test equipment .7
8 Test liquid .7
9 Test pressure.7
10 Test procedure .8
11 Acceptance criteria.9
12 Repairs.9
13 Test Records .9
Annex A (informative) Random sample schedule.11
Annex ZA (informative) Relationship of this document with EC Directives.13
Bibliography .14
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EN 12162:2001
Foreword
This European Standard has been prepared by Technical Committee CEN /TC 197, "Pumps", the secretariat of
which is held by AFNOR.
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 September 2001, and conflicting national standards shall be withdrawn at the
latest by September 2001.
This European Standard has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EU Directive(s).
For relationship with EU Directive(s), see informative annex ZA, which is an integral part of this document.
Annex A is informative.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland,
France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden,
Switzerland and the United Kingdom.
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Page 4
EN 12162:2001
Introduction
CEN have prepared a series of related machinery safety standards, some of which are to be harmonised European
Standards, in order to implement the essential requirements for health and safety set down in the Supply of
Machinery (Safety) Directive. This European Standard is one of this series and provides the procedure to be used
for a specific verification requirement of EN 809.
The subject of this European Standard is the proving of the integrity of pump parts intended to withstand internal
pressure. It refers, therefore, to the in-process testing of pump parts so that each item may be considered to have
been examined.
This European standard is a type C standard as stated in EN 1070.
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EN 12162:2001
1 Scope
This standard specifies the hydrostatic test procedure to be applied to pressure containing parts of all types of
liquid pumps including any auxiliary equipment making up a pump unit as described in the scope of EN 809:1998,
except :
domestic water pumps within the scope of EN 60335-2-41:1996 or EN 60335-2-51:1997 ;
domestic circulation pumps within the scope of EN 1151:1999 ;
submersible pumps within the scope of prEN 13386:1998 ;
fire-fighting pumps with primers within the scope of prEN 1028-1:1993 and prEN 1028-2:1993 ;
pump parts with a maximum allowable working pressure below 0.1 bar.
Requirements are included for applying an hydrostatic test at different pressures to separate zones within a pump
which are subject to different allowable maximum working pressures.
This standard is for pumps and pump units which are placed upon the market after the publication date of the
standard.
2 Normative references
This European Standard incorporates by dated or undated reference, provisions from other publications. These
normative references are cited at the appropriate places in the text and the publications are listed hereafter. For
dated references, subsequent amendments to or revisions of any of these publications apply to this European
Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the
publication referred to applies (including amendments).
EN 809:1998, Pumps and pump units for liquids - Common safety requirements.
prEN 1028-1:1993, Fire fighting pumps - Fire fighting centrifugal pumps with primer - Part 1 : Classification -
General and safety requirements.
Fire fighting pumps - Fire fighting centrifugal pumps with primer - Part 2 : Classification -
prEN 1028-2:1993,
Verification of general and safety requirements.
Rotodynamic pumps Circulation pumps having an electrical effect not exceeding 200 W for
EN 1151:1999, -
heating installations and domestic hot water installations - Requirements, testing, marking.
EN 12723:2000, Liquid pumps - General terms for pumps and installations - Definitions, quantities, letter symbols
and units.
Liquid pumps - Submersible pumps and pumps units for liquids - Particular safety requirements.
prEN 13386:1998,
EN 60335-2-41:1996, Safety of household and similar electrical appliances - Part 2: Particular requirements for
electric pumps for liquids having a temperature not exceeding 35 °C.
EN 60335-2-51: 1997, Safety of household and similar electrical appliances - Part 2: Particular requirements for
stationary circulation pumps of heating and service water installations.
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EN 12162:2001
3 Terms and definitions
For the purposes of this standard, EN 12723:2000 and the following definition apply:
"Item" or "items to be tested"
1)
any part, component, sub-assembly, pump or pump units which is to be the subject of hydrostatic pressure test
4 General
4.1 All pressure containing items shall be hydrostatically pressure tested. The purpose of this hydrostatic test is
to demonstrate the absence of leakage through pressure containing walls of any item under test and from the joints
formed by an assembly of items under test, by imposing a defined pressure in excess of the allowable working
pressure for which the item is supplied.
4.2 This test procedure shall be applied to a sampling programme only where the manufacturer can show the
validity of the sampling programme and that it is appropriate for the application.
An example of a sampling programme is given in annex A.
4.3 Pumps with double volutes, multiple stages, and otherwise with internal separating walls and to be tested
segmentally shall have a hydrostatic pressure applied to each segment related to the operating conditions in the
segment when the pump is working at its allowable working pressure.
4.4 Pressure containing chambers which function independently shall be tested separately without pressure
being applied to any adjacent chamber.
4.5 To avoid excessive loads on crank-shafts in multiplex reciprocating pump assemblies those elements in the
suction stage of the cycle shall be supported or disconnected from the crank-shaft.
5 Timing of the test
The manufacturer shall allow sufficient time during manufacture for the test and examination of all items within the
scope of this standard. The test may be carried out on an individual item or on a sub-assembly as a group of items.
Normally, the hydrostatic test is carried out :
after completion of machining ;
prior to the application of coatings, insulation, and overlays, (protection of raw parts against rust shall not be
considered as a coating) ;
following non-destructive testing, or after special leak tests below a gauge pressure of 0,5 bar
on reciprocating positive displacement pumps, at the start of the performance test of the fully assembled
pump.
1)
A rotating mechanical seal assembled into a pump or into a separate sub-assembly, together with an end plate to connect
the stationary elements of the seal to the stationary parts of the pump, will not be considered as an item to be tested but may
be subjected to the test pressu
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