EN 12162:2001+A1:2009

Liquid pumps - Safety requirements - Procedure for hydrostatic testing

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 a 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.

Flüssigkeitspumpen - Sicherheitstechnische Anforderungen - Prozessverfahren für hydrostatische Druckprüfung

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:
-   Wasserpumpen für den Hausgebrauch innerhalb des Anwendungsbereiches von EN 60335-2-41:1996 oder EN 60335-2-51:1997;
-   Heizungsumwälzpumpen für den Hausgebrauch innerhalb des Anwendungsbereiches von EN 1151:1999;
-   Feuerwehrpumpen mit Entlüftungseinrichtungen innerhalb des Anwendungsbereiches der EN 1028 1:2002+A1:2008 und EN 1028-2:2002+A1:2008;
-   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

La présente norme spécifie les essais hydrostatiques devant être appliqués aux parties sous pression de tous
les types de pompes pour liquides soumises à une pression interne, y compris tout équipement auxiliaire constituant
une unité de pompe telle que décrite dans le domaine d'application de l’EN 809:1998, à l'exception :
— des pompes pour l'eau à usage domestique du domaine d'application des EN 60335-2-41:1996 et
EN 60335-2-51:1997 ;
— des pompes de circulation domestiques du domaine d'application de l'EN 1151:1999 ;
!texte supprimé"
— des pompes à usage incendie avec dispositif d’amorçage du domaine d’application des
!EN 1028-1:2002+A1:2008 et EN 1028-2:2002+A1:2008";
— des éléments de pompe avec une pression de service admissible au-dessous de 0,1 bar.
Des prescriptions sont inclues pour des applications à des essais hydrostatiques à des pressions différentes
pour séparer les zones à l’intérieur de la pompe qui sont soumises à différentes pressions maximales admissibles
de service.
La présente norme s’applique pour les pompes et groupes motopompes qui sont placés sur le marché après la date
de publication de la norme.

Črpalke za tekočine - Varnostne zahteve - Postopek za hidrostatično preskušanje

General Information

• Status: Published
• Publication Date: 26-May-2009
• Withdrawal Date: 27-Dec-2009
• ICS: 23.080 - Pumps
• Technical Committee: CEN/TC 197 - Pumps
• Drafting Committee: CEN/TC 197 - Pumps
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Start Date: 20-May-2022
• Completion Date: 14-Apr-2025
• Directive: 2006/42/EC - Directive 2006/42/EC of the European Parliament and of the Council of 17 May 2006 on machinery, and amending Directive 95/16/EC (recast)
• Directive: 98/37/EC - Machinery
• Mandate: M/079 - Mandate to CEN and CENELEC for standardization in the field of machines
• Mandate: M/396 - Mandate to CEN and Cenelec for standardisation in the field of machinery
• Ref Project: SIST EN 12162:2002+A1:2009 - Liquid pumps - Safety requirements - Procedure for hydrostatic testing

Relations

• Merged From: EN 12162:2001 - Liquid pumps - Safety requirements - Procedure for hydrostatic testing
• Effective Date: 18-Jan-2023
• Merged From: EN 12162:2001/prA1 - Liquid pumps - Safety requirements - Procedure for hydrostatic testing
• Effective Date: 01-Apr-2009

Overview

EN 12162:2001+A1:2009 - published by CEN - specifies the hydrostatic test procedure for pressure-containing parts of liquid pumps and pump units (as described in EN 809). The standard defines how to verify the pressure integrity of pump components by applying a controlled hydrostatic pressure and inspecting for leakage. It applies to pumps placed on the market after the publication date and excludes certain domestic, submersible and low-pressure parts (see exclusions below).

Excluded applications

• Domestic water pumps covered by EN 60335-2-41 or EN 60335-2-51
• Domestic circulation pumps in EN 1151
• Submersible pumps within prEN 13386 (historic reference)
• Fire‑fighting pumps with primers in EN 1028 series
• Pump parts with maximum allowable working pressure below 0.1 bar

Key Topics

• Scope and objectives - in-process hydrostatic testing to demonstrate absence of leakage through pressure-containing walls and joints.
• Preparation - cleaning parts, blanking openings, correct assembly, venting and complete filling with test liquid.
• Test liquid - normally clean water at ambient temperature; alternatives allowed where water is unsuitable. When chloride residues are unacceptable, chloride content must not exceed 50 ppm.
• Test equipment - ability to generate test pressure (the pump may be used), and calibrated pressure gauges accurate to ±1.5% at test pressure. Reference point is the lowest point of the item.
• Test pressure calculation - test pressure = K1 × K2 × allowable working pressure. K1 is specified by pump spec and not less than 1.3. K2 is the ratio of allowable stresses (ambient vs operating temperature).
• Test procedure & duration - pressure increased steadily, held constant and inspected. Minimum hold typically 60 s, with longer specified durations for larger/heavier items (e.g., rotodynamic pumps rated >25 bar: 30 min; >10–25 bar: 10 min; ≤10 bar: 5 min; many positive-displacement pumps and cooling passages: 10 min).
• Acceptance criteria - satisfactory if no visible leakage during the test period. Leakage from shaft/rod packing or temporary gaskets is acceptable.
• Repairs & re-test - non-conforming items must be corrected or discarded; corrections and design changes recorded and re-tested.
• Test records & certificates - mandatory records: item ID, liquid used, test pressure, results, corrective actions. Certificates can be issued on purchaser request.

Applications

Who uses EN 12162:

• Pump manufacturers and OEMs for production quality control
• Testing laboratories and inspection bodies performing hydrostatic tests
• Quality managers and compliance engineers ensuring conformity to CEN requirements
• Purchasers and specifiers requiring certified hydrostatic testing and test documentation
• Regulatory bodies and notified bodies referencing harmonized standards for machinery safety

Practical benefits: ensures pressure integrity, reduces field failures, supports compliance with EN 809 and relevant EU machinery directives, and provides traceable test records for procurement and warranty purposes.

Related Standards

• EN 809 (pumps and pump units - common safety requirements)
• EN 12723 (terms and definitions for liquid pumps)
• EN 60335‑2‑41 / EN 60335‑2‑51 (household pump safety)
• EN 1151 (domestic circulation pumps)
• EN 1028 series (fire‑fighting pumps)

Keywords: EN 12162, hydrostatic testing, liquid pumps, pump testing, safety requirements, test pressure, test procedure, acceptance criteria, CEN.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Flüssigkeitspumpen - Sicherheitstechnische Anforderungen - Prozessverfahren für hydrostatische DruckprüfungPompes pour liquides - Exigences de sécurité - Procédure d'essai hydrostatiqueLiquid pumps - Safety requirements - Procedure for hydrostatic testing23.080ýUSDONHPumpsICS:Ta slovenski standard je istoveten z:EN 12162:2001+A1:2009SIST EN 12162:2002+A1:2009en,fr01-september-2009SIST EN 12162:2002+A1:2009SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 12162:2001+A1
May 2009 ICS 23.080 Supersedes EN 12162:2001English Version
Liquid pumps - Safety requirements - Procedure for hydrostatic testing
Pompes pour liquides - Exigences de sécurité - Procédure d'essai hydrostatique
Flüssigkeitspumpen - Sicherheitstechnische Anforderungen - Prozessverfahren für hydrostatische Druckprüfung This European Standard was approved by CEN on 18 January 2001 and includes Amendment 1 approved by CEN on 19 April 2009.
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 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 Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2009 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12162:2001+A1:2009: ESIST EN 12162:2002+A1:2009

Contents Foreword . 3Introduction . 41Scope . 52Normative references . 53Terms and definitions . 64General . 65Timing of the test . 66Preparation for testing . 77Test equipment . 78Test liquid . 79Test pressure . 710Test procedure . 811Acceptance criteria . 912Repairs . 913Test Records . 9Annex A (informative)
Random sample schedule . 11Annex ZA (informative)
!!!!Relationship between this European Standard and the Essential Requirements of EU Directive 98/37/CE"""" . 13Annex ZB (informative)
!!!!Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC"""" . 14Bibliography . 15 SIST EN 12162:2002+A1:2009

Foreword This document (EN 12162:2001+A1:2009) 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 November 2009, and conflicting national standards shall be withdrawn at the latest by December 2009. This document includes Amendment 1, approved by CEN on 2009-04-19. This document supersedes EN 12162:2001. The start and finish of text introduced or altered by amendment is indicated in the text by tags
!". 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 Annexes ZA and ZB, which are integral parts 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, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
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. SIST EN 12162:2002+A1:2009

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 ; !deleted text"  !fire-fighting pumps with primers within the scope of EN 1028-1:2002+A1:2008 and EN 1028-2:2002+A1:2008;"  pump parts with a maximum allowable working pressure below 0.1 bar. Requirements are included for applying a 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. !EN 1028-1:2002+A1:2008, Fire fighting pumps - Fire fighting centrifugal pumps with primer - Part 1 : Classification - General and safety requirements" !EN 1028-2:2002+A1:2008, Fire fighting pumps - Fire fighting centrifugal pumps with primer - Part 2 : - Verification of general and safety requirements" EN 1151:1999, Rotodynamic pumps - Circulation pumps having an electrical effect not exceeding 200 W for 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. !deleted text" 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. SIST EN 12162:2002+A1:2009

3 Terms and definitions For the purposes of this standard, EN 12723:2000 and the following definition apply: "Item" or "items to be tested" any part, component, sub-assembly, pump or pump units which is to be the subject of hydrostatic pressure test1) 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 pressure. SIST EN 12162:2002+A1:2009

6 Preparation for testing 6.1 Items to be subjected to test shall be free from grease, oil and other contaminants, and any cleaner used shall be compatible with the materials of manufacture of the pump, its au
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