9 Pressure equipment directivesComponents subject to 97/23/EC Pressure Equipment DirectiveComponents subject to 97/23/EC Pressure Equipment Directive greater than or equal to category IIDryer type Part number Description PED ClassQED-250 up to QED-600 1089 9139 14 High pressure switch IVQED-250 and QED-300 1624 2274 00 Heat exchanger IIQED-350 1624 2275 00 Heat exchanger IIQED-450 up to QED-600 1624 2276 00 Heat exchanger IIOverall ratingThe dryer is conform to PED category II.Instruction book60 2920 7103 90