Although the three screw pumps have many advantages, if the selection is improperly selected, it will not only get satisfactory operating effects, but also causes the noise and vibration of the pump, and even severely damage the internal parts of the pump to make the pump system work normally. Selected personnel should be carefully considered and reasonably selected, and if necessary, consult with relevant technical personnel.

When selecting the three -screw pump type, you should understand the conditions of the pump as much as possible. In addition to running parameters, such as traffic, the pressure needs to be clear, the characteristics of the conveying medium such as the corrosiveness of the medium, the volume content, and the ratio of solid -soluble substances containing solid -soluble substances The size of the solid particles, as well as the working temperature, viscosity, proportion of the medium, the corrosiveness of the material, and the inhalation conditions of the pump device, the installation conditions must be understood.

Similar to single screw pumps and double screw pumps, the choice of three screw pumps is mainly considered from performance parameters.

The selection of pump speed is mainly based on the viscosity and specifications of the transporting medium.

When transporting high viscosity medium, the pump should be selected at a low speed. If the viscosity is low, you can choose a high speed: when the medium viscosity> 20 ° e, for a large specification of the pump (the main rod outer diameter is more than 60mm), the speed is 970rpm or 720rpm It is appropriate, if the viscosity is higher (viscosity> 80 ° E), such as viscosity, it can reduce the use of speed and recommend 200-500rpm; for small specifications pumps, when the medium viscosity> 20 ° E, the speed is 1450rpm or 970rpm. If the viscosity is higher (viscosity> 80 ° e), it can reduce the use of speed, and recommend 300-600rpm;