Oil / Air Cooler Units - Hydac

2. MODEL TYPE(also order example)OKAF-EL4S / 40 / 3 . 0 / B / M / A / LPF160 / 4 / 1 / IBTType of coolerOK-EL = Oil/air coolerOKA-EL = Oil/air cooler with built-in feed pumpOKAF-EL = Oil/air cooler with built-in feed pump and filterSize / motor speed1-11 = See hydraulic details 1.3.LL = 8 pl (750 min -1 )L = 6 pl (1000 min -1 )S = 4 pl (1500 min -1 )H = 2 pl (3000 min -1 )Displacement cm³/rev28, 40 = (OKA/OKAF-EL4 -> EL6, see technical details 1.1.)40, 58, 69 = (OKA/OKAF-EL8 -> EL11, see technical details 1.2.)Type code and modification numberFor the latest version of each cooler, please see the table in our internet site.Clogging indicators (only OKAF)A = Without clogging indicatorB = With visual indicator (*)C = With electrical indicatorD = With electrical and optical indicatorFluidsM = Mineral oil to DIN 51524Other fluids on requestMotor voltageA = Standard voltages and frequencies for three–phase motor50 Hz: 380 - 420 V (Y) / 220-240 V (∆)60 Hz: 440 - 480 V (Y) / 254-277 V (∆)Except for EL1, for which the standard voltage is 220-240 V, 50/60Hz, single phaseOther special voltages and frequencies on request and clearly writtenSize of filter (only OKAF)OKAF-EL4-6 = LPF160OKAF-EL7-11 = LPF280Filtration rating in micron, Viscosity up to 80 mm²/s (only OKAF)8 = 5 µm Betamicron ® -3-N (5 BN3HC)4 = 10 µm Betamicron ® -3-N (10 BN3HC) *5 = 20 µm Betamicron ® -3-N (20 BN3HC)Paint1 = RAL 5009 (Standard)Other paint on request and clearly writtenAccessoriesAITF48 = Thermostat (fixed)IBP = Heat exchanger with integrated bypass valveIBT = Heat exchanger with integrated thermo-bypass valveGP = Vibration absorber* standard for OKAF unless otherwise specified.9