EN 1829-2:2008

SLOVENSKI STANDARD
01-julij-2008
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High-pressure water jet machines - Safety requirements - Part 2: Hoses, hose lines and
connectors
Hochdruckwasserstrahlmaschinen - Sicherheitstechnische Anforderungen - Teil 2:
Schläuche, Schlauchleitungen und Verbindungselemente
Machines à jet d’eau à haute pression - Prescriptions de sécurité - Partie 2 : Tuyaux,
tuyauteries flexibles et éléments de raccordement
Ta slovenski standard je istoveten z: EN 1829-2:2008
ICS:
97.080 Aparati za nego tal Floor treatment appliances
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 1829-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2008
ICS 97.080
English Version
High-pressure water jet machines - Safety requirements - Part 2:
Hoses, hose lines and connectors
Machines à jet d'eau à haute pression - Prescriptions de Hochdruckwasserstrahlmaschinen - Sicherheitstechnische
sécurité - Partie 2 : Tuyaux flexibles, lignes de tuyauteries Anforderungen - Teil 2: Schläuche, Schlauchleitungen und
flexibles et éléments de raccordement Verbindungselemente
This European Standard was approved by CEN on 23 February 2008.
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: rue de Stassart, 36  B-1050 Brussels
© 2008 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 1829-2:2008: E
worldwide for CEN national Members.

Contents Page
Foreword.3
Introduction .4
1 Scope .5
2 Normative references .6
3 Terms and definitions .6
4 List of significant hazards .6
5 Safety requirements and/or protective measures.7
6 Verification of the safety requirements and/or protective measures.8
7 Information for use .10
Annex ZA (informative) .12
Annex ZB (informative) .13
Bibliography .14

Foreword
This document (EN 1829-2:2008) 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 October 2008, and conflicting national standards shall be withdrawn at
the latest by October 2008.
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.
This document 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 an integral part of this
document.
EN 1829 consists of the following parts, under the general title ‘High-pressure water jet machines – Safety
requirements’:
– Part 1: Machines
– Part 2: Hoses, hose lines and connectors
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 the United Kingdom.

Introduction
This European Standard is a type C standard as stated in EN ISO 12100-1.
The machinery concerned and the extent to which hazards, hazardous situations and hazardous events are
covered are indicated in the scope of this European Standard.
When provisions of this type C standard are different from those which are stated in type A or B standards, the
provisions of this type C standard take precedence over the provisions of the other standards, for machines
that have been designed and built according to the provisions of this type C standard.

1 Scope
This European Standard applies to hoses, hose lines and connectors intended to be used with high-pressure
water jet machines within the scope of prEN 1829-1.
This European Standard deals with all significant hazards, hazardous situations and events relevant to the
equipment in the scope, when it is used as intended and under conditions of misuse which are reasonably
foreseeable by the manufacturer (see clause 4).
This European Standard deals with safety requirements to minimise the significant hazards which can arise
from assembling, operating and servicing of hoses, hose lines and connectors for use with high pressure
water jet machines (see clause 5).
NOTE 1 This European Standard does not cover leak shields since they are not part of a hose line.
The hazard due to scalding from hot liquid or from irritation / burning of any added chemicals is not covered in
this European Standard.
This European Standard is not applicable to hoses, hose lines and their accessories, which are manufactured
before the date of its publication as EN.
NOTE 2 For products of similar application that are outside of the scope of this European Standard and for which there is
no alternative document available the relevant Clauses of this European Standard may be used.
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.
prEN 1829-1:2007, High-pressure water jet machines – Safety requirements – Part 1: Machines
EN ISO 1402:1996, Rubber and plastics hoses and hose assemblies – Hydrostatic testing (ISO 1402:1994)
EN ISO 4672:1999, Rubber and plastics hoses – Sub-ambient temperature flexibility tests (ISO 4672:1997)
EN ISO 6803, Rubber or plastics hoses and hose assemblies – Hydraulic-pressure impulse test without
flexing (ISO 6803:1994)
EN ISO 12100-1:2003, Safety of machinery - Basic concepts, general principles for design – Part 1: Basic
terminology, methodology (ISO 12100-1:2003)
EN ISO 12100-2, Safety of machinery - Basic concepts, general principles for design – Part 2: Technical
principles (ISO 12100-2:2003)
ISO 7010:2003, Graphical symbols – Safety colours and safety signs – Safety signs used in workplaces and
public areas
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN ISO 12100-1:2003,
prEN 1829-1:2007 and the following apply.
3.1
burst pressure
static pressure that destroys the hose line and allows the liquid to escape
3.2
interconnected hose lines
several hose lines which have been connected to each other
3.3
connector safety devices
parts or components to restrain movement of the hose line if the connector fails (e.g. locking collars, hose
sleeves, etc.)
4 List of significant hazards
4.1 General
This Clause contains all the significant hazards, hazardous situations and events, as far as they are dealt with
in this European Standard, identified by risk assessment as significant for this type of machinery and which
require action to eliminate or reduce the risk.
4.2 Hazards due to bursting or leaking of hoses
Hazards can occur when a hose bursts or leaks. The escaping stream of liquid can cause physical damage
and also a sudden repositioning of the hose line in a dangerous manner (whip).
4.3 Hazards due to failure of connectors
Hazards can occur when a connector fails. The escaping stream of liquid can cause physical damage and
also a sudden repositioning of the hose line in a dangerous manner (whip).
4.4 Hazards due to errors by the operator
Hazards can occur if the operator uses incompatible substances or incompatible components. Hazards can
also occur if the operator exceeds the limits of use specified by the manufacturer (e.g. too high pressure, too
high tensile stress).
4.5 Hazards due to change in length of hose line
Hazardous situations occur when there is a sudden change of pressure in the hose line causing a change in
length resulting in the operators losing their firm hold.
5 Safety requirements and/or protective measures
5.1 General
Hoses, hose lines and their connectors shall comply with the safety requirements and/or protective measures
of this Clause. In addition, they shall be designed according to the principles of EN ISO 12100-2 for relevant
but not significant hazards, which are not dealt with by this European Standard.
Hoses, hose lines, and connectors have to feature a certain structure in order to guarantee safe operation
when used properly. They must not bear any risks for the operator or for the workplace and its environment.
The design of any connector safety devices has to provide safe operational performance to eliminate any risk
or hazard for the operator or their environment. However, improper use of a hose line or the connectors may
result in hazardous situations and must be avoided.
NOTE Correct assembly of hose lines requires specific knowledge and skills and also specific equipment.
5.2 Requirements for compatibility of components
The hoses and connectors combined to hose lines have to match each other in terms of structure,
composition, and design.
NOTE Hoses of one manufacturer do not necessarily match connectors of another manufacturer.
5.3 Mechanical requirements
All components of a hose line as well as the connectors and the hose line itself shall not fail under the burst
pressure specified by the manufacturer.
5.4 Requirements concerning the maximum allowable working pressure for hose lines
For hose lines with maximum allowable working pressure up to or equal to 3 000 bar the burst pressure shall
be at least 2,5 times the maximum allowable working pressure. For hose lines with maximum allowable
working pressure above 3 000 bar the burst pressure shall be at least two times the maximum allowable
working pressure. (See also EN ISO 7751.)
5.5 Thermal requirements
The hose lines shall be suitable for operating temperatures above -10 ºC and below +70 ºC.
5.6 Requirements concerning change in length of hose lines
Any change in length shall not exceed +/- 2 % of the original length when subjected to the maximum allowable
working pressure.
5.7 Requirements for tensile strength of hose lines
The hose lines shall withstand a tensile force equivalent to that induced by a pressure equal to 1,5 times the
maximum allowable working pressure or 1 000 N whichever is the lower value.
5.8 Requirements for loosening connectors
Measures shall be taken against the hazards of the unintentional loosening of connectors whilst the hose line
is under pressure. One method is a design where the presence of pressure becomes apparent when starting
loosening, for example by the use of swivel nuts with at least two axial relief bores.
If sufficient technical measures are not possible the manufacturer shall provide appropriate warnings and
instructions (see Clause 7).
NOTE For maximum allowable working pressure under 500 bar, standard hydraulic connectors are considered to
satisfy this requirement.
Pin nuts (swivel nuts which are fixed with a stainless steel pin) at connectors are only permissible up to
500 bar maximum allowable working pressure.
5.9 Requirements for connector safety devices
The need for connector safety devices to restrain movement of the hose line if the connector fails shall be
defined on the basis of an assessment of the related risk, within the limits of the intended use of the machines
for what the hose lines are intended for.
In particular, for applications with an input to the drive for
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