1,submersible deep well pump manufacturer 2, Flow:2-1000m3/hr 3, Head:10-1000 ... :1450-2850r/min 5,ISO,CE 1,QJ Series vertical submersible deep well pump tech parameter :a) Caliber: DN150-DN400mmb) Flow:2 ... and thrust collar, mainly for sustaining remnant axial force of pump and the empty weight of motors rotor.e) The winding ...