Which brand good quality submersible sewage pump sewage pump Shanghai Liancheng sale and installation of submersible sewage ..

Which brand good quality submersible sewage pump | Shanghai Liancheng submersible pump installation sales | Quote submersible sewage pump Note 1, the installation leakage protection leakage protection, also known as a life-saving device, its role from "life" on these three words It will be understood. Because submersible pump underwater, likely resulting in loss of power and even lead to leakage of electric shock. If equipped with leakage protection, as long as the submersible pump leakage exceeds leakage protection device operating current value (usually no more than 30 mA), leakage protection submersible pump shuts off power to avoid electrical waste of energy, to ensure safety. 2, power supply voltage abnormality Mo low-voltage power lines in rural areas due to the relatively long, the end of the low-voltage lines are common. When the phase voltage drops below 198 volts, the line voltage is below 342 volts, submersible pump motor speed fall, when less than the rated speed of 70%, start centrifugal switch closes, causing the start winding long power and heat and even burn coil and a capacitor. In contrast, the voltage is too high causing the motor to overheat and burn out the windings. Therefore, submersible pumps in operation, the operator must always observe the power supply voltage falls below 10% of rated voltage, higher than the rated voltage of more than 10%, should be the motor stops running, determine the cause and troubleshooting. 3, to avoid frequent switching do not frequently switch submersible pump, which is because it will produce reflux pump stopped, if start immediately, will start the motor load, resulting in burn winding starting current is too large. Because when the starting current, frequent start submersible pumps will burn out the motor windings. 4, not to let the long-term work overload submersible pump submersible pump to avoid long-term overload of work, do not draw big water and sediment concentration values ??observed at any time if the current value on the nameplate, if found that the current is too large, should be shut down Check. In addition, dewatering pump running time should not be too long, so the motor overheating and burning. 5, the rotation direction of the motor to correct the direction of rotation of the motor should find out, there are many types of submersible water pumps positive Jieke when forward and reverse, but the reverse of the small amount of water current, which reversed a long time It will damage the motor windings. 6, cable installation and insulation resistance requirements submersible pump submersible pump installation, the cable to the overhead power line is not too long. Do not force the cable submersible pump water or when proposed in order to avoid power line break. Do not sink into the mud when the submersible pump, otherwise it will lead to bad motor heat and burn out the motor windings. When installed, the motor insulation resistance of not less than 0.5 megohms. 7, ground Chaqin see problems promptly repair usually to regularly check the motor, such as found under the lid cracks, rubber seal ring damage or failure, etc., should be replaced or repaired to prevent water penetration submersible pump. · Submersible sewage pump Installation 1, mobile installation system. Efficient sewage pump bracket support it, connect water hose to work in this way is mainly used in the construction of an emergency or maintenance needs. 2, the automatic coupling device system efficient sewage pump for long-term use of fixed occasions, with quick installation, testing, and easy maintenance. The system uses a special base, fixed to the bottom of the sump, and the outlet pipe connecting well, supporting the bearing blocks installed at the top of the pool, with a guide rod so that the two are connected, pump and specific link bracket good, down along the guide rod arrival base, its automatic coupling, seals, and when lifting off automatically. ? Which brand of good quality submersible sewage pumps | Shanghai Liancheng submersible pump installation sales | submersible sewage pumps offer