... efficiency and low noise 3. no leakage axial oil Pump 1.Height above sea level: No more than ... Environmen temperature t: -25°C~+40°C4.Entry oil temperature maximum: 95°C, minimum 5°C(the ... freezing point of transformer oil) Power source:3-phase AC/Rated voltage: 380V ... service in S1 working system. Transformer Oil Pump, 6BP1 40~200, axial pump, centrifugal pump, gear pump, mixed flow ...