The H91 Series BASOTROL Automatic Gas Valves
are two-wire, electrically-operated shutoff valves that
automatically open and close on a demand signal from
a thermostat or other controlling device. These valves
can be used for gas-fired appliances with a maximum
operating pressure of 0.5 psi (35 mbar [3.5 kPa]).
Valves are available with body connections from
1/8 inch to 1 inch with different operating voltages.