The solenoid operated spool valves can now be equipped with an additional hand lever. The valve can be actuated manually in addition to normal electrical actuation. The hand lever can be used for both switching and proportional valves.
The spool valve in NG6 allows switching flows of max. 80 l/min with up to 350 bar in an explosion protection zone. For the valve actuation, the proven, certified according to ATEX / IEC Ex, solenoid coil of equipment group I + II is used. The valve can, therefore, be used in underground mining as well as in surface installations in zones 1+2.
The switching valve with the designation WDYFA06_Z568 and the proportional valve WDBFA06_Z568 are available as a 4/3-way execution with the ISO 4401-03 mounting interface. The switching valve is also available in an impulse spool execution in which the switching position is held by a mechanical detent.
