— ZDE3K*are direct operated pressure reducing valves, with electric proportional control, with ISO 4401-03 mounting surface. 
— They are compliant with ATEX, IECEx and INMETRO requirements and are suitable for use in potentially explosive atmospheres, for surface plants or mines.
— A low temperature version (up to – 40 °C)  is also available.
— The  valves  are  used  to  reduce  pressure  in  the secondary circuit branches thus ensuring stability of controlled pressure in the event of variations of the flow
rate through the valve.