... mobile fuel unit,containing our bulk positive displacement flow-meter&pump,hose reels,air separatous,extra by-pass for double flow ... high flow rate,long service life,convenience,etc.Configuration MFD-40 mobile fuel unitMFD-50 mobile fuel unitMFD-80 mobile fuel ... -50-1 meter 2"M-80-1 meter 2"pumpYB-40 vane pumpYB-50 vane pumpYB-80 vane pumpExproof Motor3Kw,50Hz ...