The use of three screw pump Notes: (1) the suction pump. The discharge diameter of not less than the pump into the. Export diameter. Inlet pipe for short, reduce unnecessary losses (such as elbows, etc.), the pump installation height should be guaranteed Pump work does not exceed the allowable suction vacuum height. (2) The pipe should be pipe rack, the pump is not allowed to withstand the load of the pipe. (3) Before installation, inhalation. Exhaust pipe to be cleaned, especially the suction pipe Road welding slag must be completely removed, in order to avoid bite into the pump after the death. (4) pump into the outlet connected to the vacuum and pressure gauge in order to observe the working state of the pump (5) suction pipe should be installed filters, the filter Net 40-80 mesh, the effective filtration area should be greater than 20-30 times the pump suction diameter .. (6) If more than two pumps in parallel in the same pipeline, the pump outlet must be installed check valve to ensure that the pump Normal work. (7) The unit is placed on the foundation buried in the bolt, find the positive and then tighten the anchor bolts. (8) The installation of the pump should be spacious. Easy maintenance. (9) After the motor is turned to the coupling, the tolerance of the coaxiality of the coupling is 0.1mm, the tolerance of the clearance between the two couplings is 2mm. (10) The operation of the unit 3-4 After hours for the final inspection, if there is no bad phenomenon, then the installation is qualified. (11) Import and export pipeline connected with the pump, the flange must be clean, non-impure.