50NWL 40WDL 50WDL 100NWL type sewage mud pump main purposes: 1,50NWL NL 3-inch multi-use liquid pump is single-stage single-suction centrifugal pump pole, stainless steel pole pumps used in mining, paper making, printing and dyeing, environmental protection, graphite, mica gold, ceramics, oil refining, petrochemical, chemical, farm, salt, iodine field, dyeing, wine, food, fertilizer, coking, processing plant, construction, marble factory, gold, mud, sand, mud, sewage pond, dirty sending thick liquid absorbing liquid, filling and suspended substances 2-inch long rod pump sewage operations, but also for mine drainage and the fluid containing mud. 2, if the high pressure pump 100NWL 150NWL, water gun, hydraulic mechanized earth work unit, used for ground leveling pole pump, river and pond dredging, drilling and other small water conservancy and transportation in digging, and the city air defense projects, underground engineering. 3, the fish used as clear pond with water, oxygen and other pond. Vertical sewage pump sewage pump NWL WGL 75WDL overload, overcurrent, phase, short circuit, the sensitivity of commissioning: This step is very important, please installer serious debugging. A. overload overcurrent Commissioning: The current thermal relay adjustment knob, slowly rotating to the direction of current is less than the actual work, each rotation a little scale, interval 2-5 minutes, until the thermal relay unit to stop working so far. Then you can scale a little reverse rotation. B. commissioning phase sensitivity: the unit is started again, and one by one knife disconnect switch fuse unit, and the unit is in the two-phase state. Whether the observed thermal relay within 5 seconds of the cut 2-inch long rod pump control circuit | Baoding pole pump | Pump from Hebei Yongchang Yongchang Pump Manufacturing Limited. Hebei Yongchang Pump Manufacturing Co. (www.hbycby.com) strong, credible, Baoding in centrifugal pumps and other industries has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Yongchang Pump and you hand into the brilliant, for a better future!