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European legislation

Did you know…

" …that under European legislation, the assembler can be held responsible for the consequences of a failed hydraulic hose assembly (EC Directive 98/37)? " …that "mixing and matching" hose and connectors of different sources not tested and validated together could not only entail serious safety risks but also be in violation of European legislation (EC Directive 98/37, EN 982)? " …that hose assemblies must be clearly marked to show the manufacturer and date of manufacture of the assembly (EN 982)?

Safety is of utmost importance when designing hydraulic circuits, in Europe this has been translated into legislation in the European Machinery Directive 98/37/CE.

The Machinery Directive provides the regulatory basis for the harmonisation of the essential health and safety requirements for machinery at European Union level.

Note: The text of the Machinery Directive is very limited and restricted only to the essential safety and performance requirements in the general public interest.

The easiest route to demonstrate compliance with the Directive is to comply with Harmonised Standards (better known as EN standards) which are designed to help manufacturers and users comply with the Directive by providing practical guidance on meeting its requirements

The two most important EN standards on safety requirements in the domain of hydraulic hose assemblies are:

ISO 12100/EN 292: "Safety of machinery - Basic concepts, general principles for design."

EN 982: "Safety of machinery - Safety requirements for fluid power systems and their components - Hydraulics."

 

Basic requirements of EN 982:

1. Replacement of a hose assembly The EN 982 standard forbids the use of hoses that have previously been used as part of an assembly. Only new hose is to be used.

2. Performance requirements All hose assemblies must fulfill all performance requirements specified in the appropriate European and/or international standards (SAE J517 or EN 853, 854, 856 and 857 standards). The most important performance requirement for hose assemblies is passing impulse testing. This is a cyclic endurance test every hose/coupling combination has to be qualified to, during which it has to withstand the number of cycles specified in the relevant hose specification. In practice, this means that every manufacturer of hose assemblies must be able to show evidence that the hose/coupling combination used for any assembly has been tested to the impulse requirements specified in the above standards.

3. Storage and service time. The recommendations of the hose manufacturer on storage time and service time for hose assemblies shall be respected.

4. Fitting onto the machine EN 982 requires a safe fitting of the hose assembly onto the machine, taking into account possible risks of whiplash and fluid injection.

5. Marking EN 982 explicitly requires the following data to be shown in a visible and permanent way on all components:

Identification of the manufacturer of the assembly Date of manufacture of the assembly The Gates Integrated System approach not only ensures full compliance to the European Machinery directive but also delivers performance levels above and beyond international standards.

 

 
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