... so on.0.75 horsepower, voltage: 220V / 50HZ, single, pump inlet pressure 2.1 kg, the maximum flow rate of ... power lines.3, prepair Explosion-proof hose that PLUG is 0.5 inch, stand pipe and oil outlet pipe ... docking flange.4, one hole on the manhole diameter is 108MM, and welded a 4 inch stand pipe high ... installation.5, the oil port is DN50 tube,for a pair of 50 flanges, pump that comes outlet 200MM pipe ...