4, submersible pump oil spill oil spill was mainly due to severe wear sealed box, causing the oil chamber sealed box or outlet box office seal leakage caused by poor. When the oil chamber leak sealed box, visible traces of oil in the water festival place. There is a section at the water filling hole, unscrew the screws, observe the oil chamber is water. If the oil chamber inlet WQP, is a bad seal, replace the sealed box 50WQP20-15-1.5, to prevent the oil chamber inlet seriously penetrate the motor. If there is oil submersible pump cable roots phenomenon, fall within the motor oil spills. Generally bad seal or seal stopper motor rewinding after failure caused by the use of lead; some are caused by broken water pump wiring board. After checking to determine 50WQP25-10-1.5, exchange of qualified new can. And measuring the degree of insulation of the motor, if the insulation is not good to be in time, while the oil in the motor replaced. Two, WQ submersible sewage pump nameplate represent what? ① model and name submersible sewage pumps, traffic regulations, the provisions of head and pump discharge diameter; the number of phases of the motor, rated voltage, rated frequency, rated power, rated current, synchronous speed and quality. This section indicates that this is a submersible sewage pump and its model; traffic regulations and the provisions of the output of the pump head and this pump discharge outlet diameter sizes; allows the use of voltage: 380V rated voltage three-phase or single-phase rated voltage of 220V, use a voltage range allows for fluctuations + 5% to a 10%; rated quite rate: 50Hz or 60Hz; sewage submersible pumps rated power: Effective mechanical power pump on the motor shaft. Submersible sewage pumps running at rated frequency, rated voltage and conditions of use prescribed 50WQP27-15-2.2, its performance should be consistent with product standards. ② submersible sewage pump motor thermal fractionation (original insulation class) or temperature limits. Said this submersible sewage pump is running, the motor stator winding temperature rise limits allowed. Stator winding temperature rise does not exceed this limit, submersible sewage pumps long run. 50WQP15-25-2.2_ stainless steel submersible sewage pump is provided by Anguo Shi Yuan Pumps Limited. Anguo Shi Yuan Pump Co., Ltd. (www.shiyuanbeng.com) strong, credible, in Baoding centrifugal pumps and other industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead you hand pumps and stone yuan into the brilliant, for a better future!