The safety kit for METHANE, LPG or CO is composed of one sensor for
detection and one solenoid valve. It allows to detect the presence of
gas in the house when its concentration is higher than the set limit
values (which are well below the dangerous limits set for the same
gases). An optical/acoustical signal in the sensor indicates the presence
of an alarm and the sensor controls the solenoid valve to make it close.
The solenoid valve has an upper button (n.2) for manual resetting of
the device and the subsequent re-connection of the user point to the
line. In the normally open version, the solenoid valve has also a side
button (n.1) for manual closing. This last function is very useful in case
of maintenance on the plant as it allows only partial disconnection of
the line.