The type 3/071 is suitable for high switching cycles, fast switching and in the fail-safe function NC normally closed. These valves are used to shut off gaseous volume flows, for example natural gas or hydrogen up to 1000 bar. Using suitable solenoid systems, the 3/071 series can be installed in an explosive environment. The valve can only seal and shut off in the direction of the arrow. Please note the necessary pressure difference 5 bar for the function of the main spool. It is recommended to install a fine filter 0.04mm directly upstream of the valve.