oSIST prEN 855:2012
(Main)Plastics hoses and hose assemblies - Thermoplastics textile reinforced hydraulic type - Specification
Plastics hoses and hose assemblies - Thermoplastics textile reinforced hydraulic type - Specification
This European Standard specifies requirements for two types of textile reinforced thermoplastics hoses and hose assemblies with maximum working pressures in the range of 69 bar to 345 bar. They are suitable for the use with:
- petroleum and synthetic based hydraulic fluids at temperatures ranging from -40°C to +100°C;
- water based hydraulic fluids at temperatures ranging from 0°C to +70°C;
This standard does not include requirements for end fittings. It is limited to the performance of hoses and hose assemblies.
Kunststoffschläuche und -schlauchleitungen - Kunststoff-Hydraulikschläuche mit Textileinlage - Spezifikation
Diese Europäische Norm legt Anforderungen für zwei Typen von Kunststoffschläuchen und Schlauchleitungen
mit Textileinlagen mit maximal zulässigen Arbeitsdrücken im Bereich von 69 bar bis 345 bar fest. Die
Schläuche sind geeignet zur Verwendung mit:
Hydraulikflüssigkeiten auf der Basis von Erdöl und synthetischen Stoffen in einem
Temperaturbereich von - 40°C bis +100°C;
Hydraulikflüssigkeiten auf der Basis von Wasser in einem Temperaturbereich 0°C bis +70°C.
Diese Norm enthält keine Anforderungen an die Armaturen. Sie beschränkt sich auf die Leistungsfähigkeit der
Schläuche und Schlauchleitungen.
ANMERKUNG 1: Betriebstemperaturen über 100°C können die Lebensdauer der Schläuche wesentlich verkürzen.
ANMERKUNG 2: Anforderungen an Hydraulikschläuche für den untertägigen Bergbau sind in separaten Normen genormt.
Tuyaux et flexibles en plastique - Type hydraulique en thermoplastiques à armature de textile - Spécification
La présente Norme européenne spécifie les exigences pour deux types de tuyaux et assemblages flexibles thermoplastiques à armature textile dont la pression maximale de service est comprise entre 69 bar et 345 bar. Ces tuyaux sont destinés à être utilisés avec :
- les fluides hydrauliques synthétiques à base de pétrole selon une plage de température de -40 °C à +100 °C;
- les fluides hydrauliques aqueux selon une plage de température de 0 °C à +70 °C.
La norme ne contient pas d'exigences sur les extrémités de raccordement. Elle se limite aux performances des assemblages flexibles.
NOTE 1 Les températures de service supérieures à 100 °C peuvent réduire matériellement la durée de vie du tuyau.
NOTE 2 Les exigences relatives aux tuyaux hydrauliques pour mines souterraines font l'objet de normes séparées.
Polimerne cevi in cevni priključki - S plastomernim tekstilom ojačene hidravlične cevi - Specifikacija
General Information
- Status
- Not Published
- Public Enquiry End Date
- 24-Jan-2012
- Technical Committee
- IPMA - Polimer materials and products
- Current Stage
- 98 - Abandoned project (Adopted Project)
- Start Date
- 20-Mar-2014
- Due Date
- 25-Mar-2014
- Completion Date
- 20-Mar-2014
Relations
- Effective Date
- 08-Jun-2022
- Effective Date
- 03-Jul-2010
Overview
prEN 855 rev (to supersede EN 855:1996) specifies performance requirements for thermoplastics textile reinforced hydraulic hoses and hose assemblies. It covers two hose types (R7 and R8) with maximum working pressures from 69 bar to 345 bar, intended for use with:
- petroleum and synthetic hydraulic fluids at -40 °C to +100 °C, and
- water‑based hydraulic fluids at 0 °C to +70 °C.
This European Standard addresses hose construction, dimensions, mechanical and environmental performance, testing and marking. It does not set requirements for end fittings; fittings are evaluated only as part of hose assembly performance testing.
Key Topics
- Types and designation
- Two types: R7 and R8 (designation example: Hose EN 855 – R7 10).
- Materials & construction
- Seamless thermoplastic inner lining, synthetic-fibre reinforcement, thermoplastic cover resistant to fluids and weather.
- Dimensions & tolerances
- Internal/external diameter and concentricity (EN ISO 4671); length tolerances for hoses and assembled hoses.
- Hydrostatic requirements
- Maximum working, proof and burst pressures tested to EN ISO 1402 (values vary by nominal bore and type within the 69–345 bar range).
- Length change under pressure limited to ±3%.
- Impulse testing
- Per EN ISO 6803 at 100 °C: R7 - ≥150 000 cycles at 125% MW; R8 - ≥200 000 cycles at 133% MW.
- Mechanical limits
- Minimum bend radius specified per nominal bore; maximum flatness after bending ≤10% of original OD.
- Environmental & durability tests
- Cold flexibility to -40 °C (EN ISO 4672) with no cracking or leakage.
- Fluid resistance per ISO 1817 (Oil No. 3, 72 h @100 °C): shrinkage ≤15%, swelling ≤35%.
- Ozone resistance (EN ISO 7326) - no visible cracking under ×2 magnification.
- Electrical conductivity
- Annex A test; leakage ≤50 µA.
- Marking
- Hoses marked every ≤500 mm with manufacturer, “EN 855”, type, nominal bore and manufacture date; assemblies carry manufacturer, working pressure and assembly date.
Applications
- Mobile and industrial hydraulic systems using petroleum, synthetic or water-based fluids.
- Suitable for OEM specification, hydraulic system design, procurement, quality control and maintenance.
- Users: hose manufacturers, test laboratories, hydraulic engineers, equipment builders, maintenance and procurement teams.
Related standards
Normative references include:
- EN ISO 1402 (hydrostatic testing)
- EN ISO 4671 / 4672 (dimensions, cold flexibility)
- EN ISO 6803 (impulse test)
- EN ISO 7326 (ozone resistance)
- ISO 1817 (fluid resistance)
Keywords: prEN 855 rev, EN 855, thermoplastics textile reinforced hydraulic hose, hose assemblies, hydraulic fluids, impulse test, hydrostatic test, minimum bend radius, electrical conductivity, fluid resistance.
Frequently Asked Questions
oSIST prEN 855:2012 is a draft published by the Slovenian Institute for Standardization (SIST). Its full title is "Plastics hoses and hose assemblies - Thermoplastics textile reinforced hydraulic type - Specification". This standard covers: This European Standard specifies requirements for two types of textile reinforced thermoplastics hoses and hose assemblies with maximum working pressures in the range of 69 bar to 345 bar. They are suitable for the use with: - petroleum and synthetic based hydraulic fluids at temperatures ranging from -40°C to +100°C; - water based hydraulic fluids at temperatures ranging from 0°C to +70°C; This standard does not include requirements for end fittings. It is limited to the performance of hoses and hose assemblies.
This European Standard specifies requirements for two types of textile reinforced thermoplastics hoses and hose assemblies with maximum working pressures in the range of 69 bar to 345 bar. They are suitable for the use with: - petroleum and synthetic based hydraulic fluids at temperatures ranging from -40°C to +100°C; - water based hydraulic fluids at temperatures ranging from 0°C to +70°C; This standard does not include requirements for end fittings. It is limited to the performance of hoses and hose assemblies.
oSIST prEN 855:2012 is classified under the following ICS (International Classification for Standards) categories: 23.040.70 - Hoses and hose assemblies. The ICS classification helps identify the subject area and facilitates finding related standards.
oSIST prEN 855:2012 has the following relationships with other standards: It is inter standard links to SIST EN 855:2000, SIST EN 855:2000. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
oSIST prEN 855:2012 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
SLOVENSKI STANDARD
01-januar-2012
3ROLPHUQHFHYLLQFHYQLSULNOMXþNL6SODVWRPHUQLPWHNVWLORPRMDþHQHKLGUDYOLþQH
YUVWH6SHFLILNDFLMD
Plastics hoses and hose assemblies - Thermoplastics textile reinforced hydraulic type -
Specification
Kunststoffschläuche und -schlauchleitungen - Kunststoff-Hydraulikschläuche mit
Textileinlage - Spezifikation
Tuyaux et flexibles en plastique - Type hydraulique en thermoplastiques à armature de
textile - Spécification
Ta slovenski standard je istoveten z: prEN 855 rev
ICS:
23.040.70 Gumene cevi in armature Hoses and hose assemblies
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
DRAFT
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2011
ICS 23.040.70 Will supersede EN 855:1996
English Version
Plastics hoses and hose assemblies - Thermoplastics textile
reinforced hydraulic type - Specification
Tuyaux et flexibles en plastique - Type hydraulique en Kunststoffschläuche und -schlauchleitungen - Kunststoff-
thermoplastiques à armature de textile - Spécification Hydraulikschläuche mit Textileinlage - Spezifikation
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 218.
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, 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
© 2011 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 855 rev:2011: E
worldwide for CEN national Members.
prEN 855:2011 (E)
Contents Page
Foreword .3
1 Scope .3
2 Normative references .3
3 Types of hoses .4
4 Materials and construction .4
4.1 Hose .4
4.2 Hose assemblies .4
5 Dimensions .4
5.1 Diameters and concentricity .4
5.2 Length .5
5.2.1 Hoses .5
5.2.2 Hose assemblies .5
6 Requirements .6
6.1 Hydrostatic requirements .6
6.2 Minimum bend radius .6
6.3 Impulse test requirements .7
6.4 Leakage of hose assemblies .7
6.5 Cold flexibility .7
6.6 Fluid resistance.7
6.7 Ozone resistance .8
6.8 Electrical conductivity .8
7 Designation .8
8 Marking .8
8.1 Hoses .8
8.2 Hose assemblies .8
Annex A (normative) Method of test for electrical conductivity . 10
prEN 855:2011 (E)
Foreword
This document (prEN 855:2011) has been prepared by Technical Committee CEN/TC 218 “Rubber and
plastics hoses and hose assemblies”, the secretariat of which is held by BSI.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 855:1996.
1 Scope
This European Standard specifies requirements for two types of textile reinforced thermoplastics hoses and
hose assemblies with maximum working pressure in the range of 69 bar to 345 bar. The hoses are suitable for
use with
petroleum and synthetic based hydraulic fluids at temperatures ranging from -40 ˚C to +100 ˚C;
water based hydraulic fluids at temperatures ranging from 0 ˚C to +70 ˚C.
The Standard does not include requirements for end fittings. It is limited to the performance of hoses
assemblies.
NOTE 1 Operating temperatures in excess of 100 ˚C may materially reduce the life of the hose.
NOTE 2 Requirements for hydraulic hoses for underground mining are standardised in separate standards.
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 ISO 1402, Rubber and plastics hoses and hose assemblies – Hydrostatic testing
EN ISO 4671, Rubber and plastics hoses and hose assemblies – Methods of
...
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