prEN 1151-1

Pumps - Rotodynamic pumps - Circulation pumps having a rated power input not exceeding 200 W for heating installations and domestic hot water installations - Part 1: General requirements, testing, marking

Cette partie de l'EN 1151 définit les principes généraux pour la construction, l'utilisation et les essais des circulateurs à rotor noyé de puissance absorbée P1  200 W, destinés aux installations de chauffage et aux installations d'eau chaude sanitaire.
NOTE   Les exigences de ce document peuvent s'appliquer aux circulateurs pour utilisation domestique ayant une puissance absorbée supérieure à 200 W jusqu'à et y compris 300 W. Cependant cette décision dépend de l'accord entre le fournisseur et l'acheteur.
Les circulateurs ayant une puissance absorbée supérieure à 200 W pour usage professionnel/domestique ne sont pas couverts par cette norme.
Cette norme s'applique:
a)   aux circulateurs à courant alternatif de puissance absorbée P1  200 W destinées aux installations conventionnelles de chauffage par eau avec une température d'entrée maximale admissible de              TF  110 °C et une pression maxi de sortie de service p2max o  6 bar.
b)   aux circulateurs à courant alternatif de puissance absorbée P1  200 W destinés aux installations d'eau chaude sanitaire avec une température d'entrée admissible de TF  65 °C et une pression de sortie maxi de service p2max o  10 bar.
Cette Norme s'applique aux circulateurs qui sont fabriqués après la date de parution de cette norme.
Cette norme couvre les performances des circulateurs. Tous les risques connus qui sont susceptibles de se produire pour une installation et un fonctionnement normaux sont couverts par les normes européennes      EN 809 et EN 60335-2-51.
Concernant les règles de sécurité pour les parties électrotechniques des circulateurs, la norme EN 60335-2-51 s'applique.

Pumpen - Kreiselpumpen - Umwälzpumpen mit elektrischer Leistungsaufnahme bis 200 W für Heizungsanlagen und Brauchwassererwärmungsanlagen für den Hausgebrauch - Teil 1: Allgemeine Anforderungen, Prüfung, Kennzeichnung

Pompes - Pompes rotodynamiques - Circulateurs de puissance absorbée n'excédant pas 200 W, destinés au chauffage central et à la distribution d'eau chaude sanitaire domestique - Partie 1: Exigences générales, essais, marquage

Črpalke - Centrifugalne črpalke - Obtočne črpalke z naznačeno vhodno močjo do največ 200 W za grelne inštalacije in gospodinjske toplovodne inštalacije - 1. del: Splošne zahteve, preskušanje in označevanje

General Information

• Status: Not Published
• Publication Date: 20-Feb-2012
• Withdrawal Date: 20-Aug-2012
• ICS: 23.080 - Pumps
• Technical Committee: CEN/TC 197 - Pumps
• Drafting Committee: CEN/TC 197/SC 4/WG 1 - Circulation pumps
• Current Stage: 4098 - Decision to abandon - Enquiry
• Start Date: 19-Oct-2010
• Completion Date: 19-Oct-2010
• Ref Project: oSIST prEN 1151-1:2009 - Pumps - Rotodynamic pumps - Circulation pumps having a rated power input not exceeding 200 W for heating installations and domestic hot water installations - Part 1: General requirements, testing, marking

Relations

• Revises: EN 1151-1:2006 - Pumps - Rotodynamic pumps - Circulation pumps having a rated power input not exceeding 200 W for heating installations and domestic hot water installations - Part 1: Non-automatic circulation pumps, requirements, testing, marking
• Effective Date: 08-Jun-2022

Overview

prEN 1151-1 (CEN draft) defines the general principles for the construction, use, testing and marking of glandless rotodynamic circulation pumps with a rated power input P1 ≤ 200 W intended for heating installations and domestic hot water systems. The standard covers performance verification and specimen information for pumps manufactured after its date of issue. It clarifies application limits, noting that pumps above 200 W up to 300 W may be covered by agreement between supplier and purchaser, while pumps above 200 W for professional/commercial use are excluded.

Key scope parameters include:

• Rated power input: P1 ≤ 200 W
• Heating systems: maximum permissible inlet temperature TF ≤ 110 °C and maximum outlet working pressure p2max,o ≤ 6 bar
• Domestic hot water: maximum permissible inlet temperature TF ≤ 65 °C and maximum outlet working pressure p2max,o ≤ 10 bar

The document focuses on pump performance; known hazards for normal installation and operation are addressed by EN 809 and EN 60335-2-51. Safety of electrotechnical parts follows EN 60335-2-51.

Key Topics

• Definitions and terminology: circulation pump, glandless pump, rated/minimum power input, control curves, hydraulic power, operating point.
• Performance & safety requirements: hydraulic characteristics (Q–H), rated and minimum power input, starting characteristics, resistance to internal pressure and temperature, thermal cycling, venting and deblocking, materials and design considerations.
• Test methods: procedures for hydraulic performance, measurement of rated power input, starting conditions, pressure and temperature resistance tests, thermal cycling tests, and noise-related measurements referenced in Part 2.
• Control/operation: reference control curves (constant and variable pressure), load profiles, compensated and averaged compensated power input calculations, and control performance criteria.
• Information & marking: required instruction handbook contents and marking details for safe installation and compliance.

Applications

This standard is primarily aimed at manufacturers, test laboratories, specifiers and installers of small rotodynamic circulation pumps used in:

• Domestic central heating systems
• Domestic hot water circulation and distribution
• Retrofit and replacement pump selection for residential systems

Benefits of applying prEN 1151-1 include clearer compliance criteria for safety and performance, consistent testing methods, and improved compatibility across products and installations.

Related Standards

• EN 1151-2 - Noise test code (vibro-acoustics) for structure- and fluid-borne noise
• EN 809 - Performance and safety considerations for rotodynamic pumps
• EN 60335-2-51 - Safety requirements for stationary circulation pumps (electrotechnical parts)
• EN 60034-1, ISO 9906 - Rotating machines and pump test guidelines referenced for rating and testing

For manufacturers and procurement teams, prEN 1151-1 provides a practical framework to verify pump performance, ensure installation safety, and support consistent marking and user information across the EU market.

Standards Content (Sample)

SLOVENSKI STANDARD
01-oktober-2009
ýUSDONH&HQWULIXJDOQHþUSDONH2EWRþQHþUSDONH]QD]QDþHQRYKRGQRPRþMRGR
QDMYHþ:]DJUHOQHLQãWDODFLMHLQJRVSRGLQMVNHWRSORYRGQHLQãWDODFLMHGHO
6SORãQH]DKWHYHSUHVNXãDQMHLQR]QDþHYDQMH
Pumps - Rotodynamic pumps - Circulation pumps having a rated power input not
exceeding 200 W for heating installations and domestic hot water installations - Part 1:
General requirements, testing, marking
Pumpen - Kreiselpumpen - Umwälzpumpen mit elektrischer Leistungsaufnahme bis 200
W für Heizungsanlagen und Brauchwassererwärmungsanlagen für den Hausgebrauch -
Teil 1: Allgemeine Anforderungen, Prüfung, Kennzeichnung
Pompes - Pompes rotodynamiques - Circulateurs de puissance absorbée n'excédant
pas 200 W, destinés au chauffage central et à la distribution d'eau chaude sanitaire
domestique - Partie 1: Exigences générales, essais, marquage
Ta slovenski standard je istoveten z: prEN 1151-1
ICS:
23.080 ýUSDONH Pumps
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
DRAFT
NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2009
ICS 23.080 Will supersede EN 1151-1:2006
English Version
Pumps - Rotodynamic pumps - Circulation pumps having a rated
power input not exceeding 200 W for heating installations and
domestic hot water installations - Part 1: General requirements,
testing, marking
Pompes - Pompes rotodynamiques - Circulateurs de Pumpen - Kreiselpumpen - Umwälzpumpen mit elektrischer
puissance absorbée n'excédant pas 200 W, destinés au Leistungsaufnahme bis 200 W für Heizungsanlagen und
chauffage central et à la distribution d'eau chaude sanitaire Brauchwassererwärmungsanlagen für den Hausgebrauch -
domestique - Partie 1: Exigences générales, essais, Teil 1: Allgemeine Anforderungen, Prüfung, Kennzeichnung
marquage
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 197.
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 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.
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
Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2009 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 1151-1:2009: E
worldwide for CEN national Members.

Contents Page
Foreword .3
Introduction .4
1 Scope .5
2 Normative references .5
3 Terms and definitions .6
4 Symbols and units .9
5 Performance and safety requirements .9
5.1 Hydraulic characteristics .9
5.1.1 Q and H .9
100% 100%
5.1.2 Reference variable pressure control curve . 10
5.1.3 Reference constant pressure control curve . 10
5.1.4 Load profile for heating systems . 10
5.2 Rated and minimum power input . 10
5.3 Starting characteristics . 11
5.4 Resistance to internal pressure . 11
5.5 Temperature resistance . 11
5.6 Resistance to thermal cycling . 11
5.7 Venting and deblocking . 11
5.8 Material- and design requirement . 11
5.9 Fluid and structure borne noise emission . 11
6 General test methods . 11
6.1 General . 11
6.2 Testing of the hydraulic characteristic . 11
6.2.1 Maximum hydraulic power . 11
6.2.2 Tolerance band on H . 12
100%
6.2.3 Part load points on a control curve . 13
6.2.4 Calculation of P for heating systems . 14
L,avg
6.2.5 Control performance . 14
6.2.6 Test conditions . 15
6.2.7 Testing of hydraulic performance . 16
6.3 Measurement of rated power input . 17
6.4 Starting conditions . 17
6.5 Testing of resistance to internal pressure . 17
6.6 Testing of temperature resistance . 17
6.7 Testing of resistance to thermal cycling . 18
6.7.1 Motor supply voltage . 18
6.7.2 Intermittent operation . 18
6.8 Venting and deblocking . 19
6.9 Toxicity, biological and microbiological test . 19
7 Information for use . 19
7.1 General . 19
7.2 Instruction handbook . 19
7.3 Marking . 20
Annex A (informative) Additives . 21
A.1 Additives . 21
Bibliography . 22

Foreword
This document (prEN 1151-1:2009) has been prepared by Technical Committee CEN/TC 197 “Pumps”, the
secretariat of which is held by AFNOR.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 1151-1:2006.
EN 1151 consists of the following parts under the general title Pumps — Rotodynamic pumps — Circulation
pumps having a rated power input not exceeding 200 W for heating installations and domestic hot water
installations:
 Part 1: General requirements, testing, marking
 Part 2: Noise test code (vibro-acoustics) for measuring structure and fluid-borne noise
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
Introduction
For the purpose of this document, circulation pumps having a rated power input ≤ 200 W are generally
considered for domestic use and circulation pumps having a rated power input > 200 W are considered for
professional/commercial use.
1 Scope
This part of EN 1151 establishes general principles for the construction, use and testing of circulation pumps
of the glandless type, having a rated power input P ≤ 200 W, intended to be used in heating installations and
domestic hot water service installations.
NOTE The requirements of this document may apply to circulation pumps for domestic use having a rated power
input above 200 W up to and including 300 W. However, this decision depends on agreement between the supplier and
purchaser.
Circulation pumps with a rated power input above 200 W for professional/commercial use are excluded from
the scope of this document.
This document applies to:
a) A.C. circulation pumps having a rated power input P ≤ 200 W intended for use in ordinary heating water
systems with a maximum permissible inlet temperature of T ≤ 110 °C and a maximum outlet working
F
pressure p ≤ 6 bar.
2max o
b) A.C. circulation pumps having a rated power input P ≤ 200 W intended for use in domestic hot water
installations with a permissible inlet temperature of T ≤ 65 °C and a maximum outlet working pressure
F
p ≤ 10 bar.
2max o
This document applies to circulation pumps, which are manufactured after the date of issue of this document.
This document covers the performance for circulation pumps. All known hazards which are likely to occur at
normal installation and operation are covered by the European Standards EN 809 and EN 60335-2-51.
As regards safety for electrotechnical parts of circulation pumps, EN 60335-2-51 applies.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
EN 1151-2:2006, Pumps — Rotodynamic pumps — Circulation pumps having a rated power input not
exceeding 200 W for heating installations and domestic hot water installations — Part 2: Noise test code
(vibro-acoustics) for measuring structure- and fluid-borne noise
EN 60034-1, Rotating electrical machines - Part 1: Rating and performance (IEC 60034-1:2004)
EN 60335-2-51:2003, Household and similar electrical appliances — Safety — Part 2-51: Particular
requirements for stationary circulation pumps for heating and service water installations (IEC 60335-2-
51:2002)
EN ISO 12100-2:2003, Safety of machinery — Basic concepts, general principles for design — Part 2:
Technical principles (ISO 12100-2:2003)
ISO 9906:1999, Rotodynamic pumps — Hydraulic performance acceptance tests — Grades 1 and 2
HD 472 S1:1989, Nominal voltages for low voltage public electricity supply systems
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
circulation pump
centrifugal pump which circulates heating water and/or domestic hot water, as determined by its type
NOTE A circulation pump is a pumping device consisting of a hydraulic, a mechanical and an electric part including
a motor with or without speed control.
3.2
rated power input
maximum electrical power input at nominal voltage at normal operational conditions
3.3
minimum power input
minimum electrical power input at nominal voltage at normal operational conditions
3.4
glandless pump
circulation pump (3.1) where the rotor of the motor is in direct contact with the water being pumped
3.5
speed setting
setting attained (for pumps with different settings) when the speed of the electric motor is changed
3.6
range of operation
range of the H(Q) characteristic specified by the manufacturer for normal operation of the pump
3.7
maximum inlet pressure (static pressure)
highest inlet pressure to which the pump is subjected during operation
NOTE All pressures in this document are gauge pressures except for the differential pressure (3.8) measured in
6.2.6.2.
3.8
differential pressure
gain in pressure between the pump inlet and pump outlet
NOTE All pressures in this document are gauge pressures except for the differential pressure (3.8) measured in
6.2.6.2.
3.9
maximum outlet working pressure
sum of maximum inlet pressure (3.7) and maximum differential pressure (3.8) at rated conditions
3.10
differential pressure controlled circulation pump
speed controlled circulation pump (3.1) adapting in time the pressure to the demand
3.11
non-controlled circulation pump
circulation pump (3.1) having no adaption in time the pressure to the demand
3.12
hydraulic power
conventional expression of the arithmetic product of the flow, Q, the head, H, and a constant
NOTE For the purpose of this document, the hydraulic power is expressed by:
P =×2,72 QH×
hyd
where:
P is the hydraulic power [W]
hyd
Q is the flow [m³/h]
H is the differential head [m]
2,72 is the conversion factor assuming water temperature 20 °C and gravity of 9,81 m/s
3.13
system curve
graphical representation of relationship between flow and head (H = f(Q)), resulting from friction
3.14
control curve
graphical representation of relationship between flow and head (H = f(Q)), obtained by changing the speed of
the motor automatically depending on load
NOTE 1 For pumps with multiple control curves, the applicable curve is selected depending on the heating system.
NOTE 2 Examples of control curves are shown in Figure 1.
1 2 1
H H
Key
a) Constant pressure control
b) Variable pressure control
1 Part load
Q Q
2 Full load
a) b)
3 Control curve
NOTE The “Dots” shows the operating points (3.19) at full load and part load operation.
Figure 1 — Control curve examples
3.15
non-control curve
graphical representation of relationship between flow and head (H = f(Q)), obtained by non-automatic
operation of the pump at different loads
3.16
maximum setting
curve, which gives the maximum hydraulic power (3.12)
NOTE This curve could be either a control curve (3.14) or a non-control curve (3.15) if that exists.
3.17
reference control curve
theoretical control curve (3.14) used for standardized measurements and calculation of compensated
power input (3.20)
3.18
load profile
relationship between flow and running time of the circulation pump (3.1)
3.19
operating point
point in the Q-H plane characterizing the intersection between a system curve (3.13) and either a control
curve (3.14) or a non-control curve (3.15)
3.20
compensated power input
calculated power, compensating for deviations between measured head values and head values on the
reference control curve (3.17)
3.21
averaged compensated power input
P
L,avg
compensated power input (3.20) weighted on the load profile (3.18)
3.22
control performance criteria
criteria for the ability of a circulation pump (3.1) to operate at a specific control curve (3.14)
4 Symbols and units
For the purpose of this document, the symbols, quantities and units given in Table 1 apply.
Table 1 — Symbols and units
Symbol Quantity Unit
g
Acceleration due to gravity m/s
H Head (water gauge) m
H Measured head (water gauge) m
meas
H Calculated head (water gauge) m
calc
H Reference head (water gauge) m
ref
H Maximum head (water gauge) m
max
H Head (water gauge) at maximum hydraulic power m
100%
P Power input W
P Rated power input W
1, rated
P Minimum power input W
1, min
P
Compensated power input W
L
P Average compensated power input W
L,avg
P Measured power input W
meas
P Hydraulic power W
hyd
p Pressure bar
p
Maximum inlet pressure bar
1max o
p Differential pressure Pa
1-2
p M
...