Technical details Temperature range -10°C ... +70°C Medium Filtered, oil-free and dried compressed air according to ISO 8573-1:2010, Class 7:2:4, instrument air, free of aggressive additives. Alternatively the pressure dew point must be at least 10°C below lowest occurring ambient temperature. Materials Body: Al (anodized), seals: NBR 1 2 DR-xx flow control valve Model-no.: DR-25 DR-18 DR-14 DR-10 Connection M5 G1/8 G1/4 G1/2 Nominal size 1-2 (mm) 0.5 ... 1.5 0.5 ... 2 1 ... 5 1 ... 7 Nominal size 2-1 (mm) 2.5 4.5 7.5 11 Flow rate 1-2 (Nl/min) 5 ... 40 5 ... 90 50 ... 600 50 ... 600 Flow rate 2-1 (Nl/min) 120 480 1300 1400 Operating pressure (bar) 0.5 ... 10 0.5 ... 10 0.5 ... 10 2 ... 10 Weight (kg) 0.034 0.040 0.098 0.215