Electrically controlled, intrinsically safe directional control valves are intended to regulate the direction of hydraulic fluid (oil) flow in hydraulic systems which require to be powered with intrinsically safe circuits, unable to cause an ignition in an environment with potentially explosive atmosphere for group I or II, by creating a spark or thermal effect. To provide a distinction from the standard hydraulic equipment, the “I” letter, preceding the product type was introduced.
The valves are ATEX certified for intrinsically safe applications and can be used with an intrinsically safe circuit “ia” or “ib” of a power pack unit, suitable for the proper explosion group of a gas (max. parameters: Ui = 15 V, Ii = 1,6 A). For some of the elements (for the II group of equipment), the intrinsically safe power unit should have a power limit Pi, in compliance with the technical pecification table.
The intrinsically safe valves are intended (among other applications), for hydraulic systems which require to be powered withintrinsically safe circuits: