Adjustable Speed Vacuum Pump - VP-15S 1.Working without pump oil.2.Adjustable suction flow rate: 0-15 L/min.3.Universal voltage 110V~220V.4.Overload protection, over temperature protection, short circuit protection.5.Can work without stopping for a long time, over 24 hours. Vacuum Pump Technical Data Model VP – 10LVP – 15LVP-15SVP – 30LPicture Type Negative pressurePositiveandnegative pressurePumping speed:(L/min)10 150 – 1530Ultimate Vacuum / Negative Pressure (Mpa)0.0750.080.085Max Pressure / Positive Pressure(bar)//5.0 Noise Level(DB)<40<45<50 Motor Power(W)203050 Diaphragm&ValesNBR Overload protection YES Over temperature protectionYES Short circuit protectionYES Dimensions (mm)192x100x135 240x120x160 Products weight (kgs) 1.582.68