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PRELIMMINARY CHECKS FOR PROPER OPERATION
It is advisable to execute a preliminary verify of product at the time of delivery for detect and report any damage
incurred during transport and handling. In the event of a claim you should contact our technical assistance office.
GENERAL PRODUCT INFORMATION:
S-TECH is a trademark owned by Gas Broker srl used for the marking and distribution of seismic valves model SV. The
use of gas valves with automatic seismic action with manual reset is recommended, and it is also, in some cases, a
legal obligation, to prevent damage caused by an earthquake from adding other damage due to fire or explosion
caused by the consequent gas leaks.
The valves have been designed to automatically intercept the gas in the event of an earthquake according to the
internationally recognized American standard ASCE 25-16 and have been subjected to the CE marking according to
the following European directives:
DIRECTIVE 2014/34 / EU (ATEX) in force since 20/4/2016 concerning the approximation of the laws of the
Member States relating to equipment and protective systems intended for use in potentially explosive
atmospheres.
DIRECTIVE 99/92 / EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 16 December 1999
relating to the minimum requirements for improving the protection of the safety and health of workers who
may be exposed to the risk of explosive atmospheres.
DIRECTIVE 2014/68 / EU (PED) implemented with Legislative Decree 26/2016 for the approximation of the
laws of the Member States on pressure equipment.
For the purposes of preventing seismic risks and identifying seismic areas, the Presidency of the Council of Ministers
issued on 20 March 2003, ordinance N ° 3274, updated with OPCM 3519/06, which provides that they are used as
reference standards some technical guides attached to the ordinance, drawn up by experts in the sector.
Some data on seismic risk can also be obtained from the civil protection site:
https://rischi.protezionecivile.gov.it/it/sismico/attivita/classificazione-sismica
Once your seismic area has been identified, even if there is no legal obligation (... service systems above 50 m3 / h
must be equipped with valves for the automatic interruption of the gas supply...), therefore also for systems with a
flow rate of less than 50 m3 / h including domestic, it is recommended to install the seismic valve in order to avoid
further dangerous situations in the event of an earthquake.
SV valves have sizes ranging from DN15 up to DN250 with two pressure classes 500mbar and 4bar as prescribed by
the Asce25-16 technical standard and can be installed vertically or horizontally.
For the European market, the product is distributed with the CE marking while for markets in the Americas the valves
are subjected to the CSA (US + C) marking; both markings are evaluated by the third Notified Body for compliance
with the Axes 25-16 technical standard.
Before to proceed to installation, commissioning or maintenance, operators must:
• Examine the safety provisions applicable to installation which they must operate;
• Obtain the necessary permits to operate when required;
• Adopt the necessary personal protection equipment.
• Ensure that the area in which they operate is equipped both with means of collective
protection provided and the necessary security details; in particular if
the gas used is flammable the surrounding area must be ATEX classified.
• In particular, check if the area in which you work is classified for ATEX purposes and
corresponding to the product marking (2G = Zone 1)
P a g e .
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