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BEFORE PROCEEDING WITH THE INSTALLATION, IT IS RECOMMENDED TO CAREFULLY READ
SAFETY INSTRUCTION
SV seismic valves must be used in compliance with the following requirements which are essential for protection
against the risk of explosion.
Before starting the installation, in agreement with the customer's safety managers, it must be ensured that there is
no explosive atmosphere in the area. This situation must be guaranteed for the entire duration of the installation and
blank testing operations until the valve is put into operation.
The SV model seismic gas valve is a device whose safety is provided for use in hazardous areas classified as surface
for group IIB gas (propane, methane, etc...).
The ATEX installation category is 2G (Zone 1, 2) and compliance with the EHSR (Essential Health and Safety
Requirements) of the ATEX Directive is guaranteed in accordance with EN ISO 80079-36 and EN ISO 80079-37
Electrostatic discharges
This device is also suitable for installation in a potentially explosive area in accordance with the previous paragraph. In
this area, the sparks produced by electrostatic discharges could generate explosions. Although during normal operation
there are no potential hazards on the appliance, during installation / maintenance activities we recommend the use of
dissipative footwear and a damp cloth (ρ%> 65%).
Equipotential bonding
Inside buildings, all metal parts that make up the installation of the seismic valve, if they can be the site of electrostatic
charges, must be tied and connected to a ground wire in accordance with EN 1775. Care should be taken to avoid
interactions between this equipotential bonding and a cathodic corrosion protection system.
Indications provided for marking
This device is designed to meet the protection requirements according to the marking affixed by the manufacturer:
II 2G Ex h IIB T4 Gb, the temperature range of use, environment and fluid, are between -23 ° / + 66 ° C.
Description of symbols relating to intrinsic safety
TÜV IT 22 ATEX 029 AR
0918
II
2G
Ex h
IIB
T4
Tamb: -25°C ~ +66°C
AND CHECK THE FOLLOWING INSTRUCTIONS IN THIS MANUAL.
Atex deposit certificate number
CE: product compliant with applicable European Directives
identification code of Notification Body (TUV)
Etex brand: indicates a product compliant with installation in a hazardous area
Gruup II: surface installation
Category 2 product (zone 1) for gases, fumes, vapors
Type of protection adopted
Group of gases considered (propane, ethylene, natural gas)
Temperature class
Temperature for the use of the valve within which the safety of use is
guaranteed
ATTENTION!
P a g e .
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