UNI Geräte 10-EVSA, Operating And Maintenance Instructions Manual

Page: 3 / 25

Safety
03/2021 221.100.002-00 3
www.uni-geraete.com
Attention
Material damage!
• Indicates a situation that can lead to damage to property and the environment.
Note
Supplementary information on operating the product.
2 Safety
The manufacturer accepts no liability for damage in the following cases:
•
Assembly or connection errors
• Damage to the product due to mechanical influences and incorrect connection voltage
• Modifications to the product without the express permission of the manufacturer
• Use for purposes other than those described in the manual
• Welding on load-bearing parts
• Operating the valve without safety devices
• Attaching fittings, components and devices that are not part of the scope of delivery and are not approved
by the manufacturer
2.1 General safety
• Before carrying out any work on the valve, de-energise the device and secure it against being switched on
again.
• Before working on the valve, depressurise the piping system.
• If the valve or its paintwork shows visible signs of damage, it must not be put into operation.
• Maintenance and repair work may only be carried out by personnel trained by the manufacturer who are
familiar with the hazards involved and the relevant regulations.
• Leakages of hazardous media (e.g. explosive, toxic, hot) must be discharged in such a way that they do
not pose a risk to persons or the environment.
2.2 Safety during operation in potentially explosive atmospheres
• The temperature of the medium must not exceed the maximum temperature of the corresponding temper-
ature class, or the respective maximum permissible medium temperature (See “Technical specifications”
on page 5).
• If the valve is heated, the temperature classes specified in the system must be observed.
• The valve must be earthed. In the simplest case, this can be implemented via the pipe screws by means
of toothed lock washers. Otherwise, earthing must be ensured by other measures, e.g. cable bridges.
• Control valves, electric and electric/mechanical actuators, and sensors must be subjected to their own
conformity assessment in accordance with ATEX. Special attention must be paid to the corresponding
safety and explosion protection instructions in the relevant operating instructions.
• The product is not subject to directive 2014/34/EU, since no effective ignition source occurs under the
loads that occur in practice, even in the event of a likely fault. This also applies to spring-loaded compo-
nents in the medium-conveying space. In the case of electric actuators, sensors or other electric compo-
nents, use must be checked separately in accordance with 2014/34/EU.
• Repainting the valve can lead to electrostatic charging processes, which would pose an ignition hazard.
Subsequent painting voids the ATEX approval with immediate effect.
• Any modification to the valve is prohibited. Unauthorised modifications to the valve will invalidate the ATEX
approval with immediate effect.
• Modifications are only permissible after consultation with the manufacturer.
Note
Safety verification with regard to Directive 2014/68/EU Annex I
UNI valves must not be used or classified as equipment with a safety function as defined by the Pressure
Equipment Directive 2014/68/EU Article 2 (4)( and Article 4 (1) (d) according to Category IV!