Screw pump is widely used, known as "screw pump can transport any medium". However, this does not mean that a certain screw pump can transport all the media, but according to the characteristics of the medium and the number of performance parameters can choose different types of screw pumps. If you accidentally pick the wrong pump screw pump, it is likely to bring unnecessary trouble. The following is a single screw pump selection tips:

Single screw pumpKey points of selection:

The selection of single screw pump mainly focuses on the following parameters:

1, single screw pump pressure measurement:

The maximum output pressure z* of a single screw pump is determined according to the bushing series, that is, the number of leads of the bushing (stator) :

Level 1: z* high working pressure is 0.6mpa;

Level 2: z* high working pressure is 1.2mpa;

Level 4: z* high working pressure is 2.4mpa;

Due to the different working conditions of the conveying medium, for the medium with serious wear, the appropriate stator series should be selected according to the requirements of the conveying pressure.

2, single screw pump speed selection:

Because of its structural characteristics, single-screw pump is mostly used to transport liquids with high viscosity and liquids containing particles, so the choice of its speed is very critical. The choice of speed for a single screw pump is mainly based on the wear of the medium and the viscosity of the medium.

3, single screw pump lining rubber material selection:

Single screw pump liner for rubber products, is also a single screw pump wearing parts, its choice, directly affect the life of the liner, under normal circumstances, the life of the liner is 3-6 months, if the choice is not suitable, the lining may fall off from the steel pipe or rubber off.

4, material combination selection:

Different combinations of materials are required for the transmission of media with different properties.

5. Performance:

The performance table or characteristic curve of the general single screw pump is based on the data when 20℃ water is the medium (viscosity is 1cst), and the flow rate and shaft power of the conveying different viscosity are different.

Shaft seal: 6.

According to the needs and transmission medium, mechanical seal and packing seal can be used, and the two structures have interchangeability.

7, the pump driving mode:

Because the single-screw pump is a low-speed pump, the pump is driven in more ways, generally there are low-speed motor direct connection (6, 8), gear motor drive, and stepless motor drive.

The above content is knoll Kono single screw pump selection skills, Shenzhen Oudejie technology professional sales of original imported knoll Kono screw pump, and committed to sales of screw pump products are new original imports, while providing our customers with quotation, selection, product information and other services.