Alfa Laval Screw Pump

Alfa Laval Screw Pump

Universal three-screw pump with wide application
Product Features:
1.The screw units is rotating along with the external prime mover.
2.The spiral groove of the screw opens periodically,and the volume of suction cavity increases,resulting into a vacuum.
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Product Details

Universal three-screw pump with wide application

Product Features:

1.The screw units is rotating along with the external prime mover.

2.The spiral groove of the screw opens periodically,and the volume of suction cavity increases,resulting into a vacuum.

3.The medium is absorbed into the spiral groove and sealed in the spiral groove.

4.Along with the rotation of screw,the medium moves toward the outlet along the axial line of the screw.

5.The medium is pumped out.This is the operating principle of screw pump.


Performance  Viscosity:3.0 ~ 1500 mm2/s

Flow:5 ~ 5300 L/min

Maximum Pressure:4.0 Mpa

Maximum Temperature:150 ℃

 

Screw pumps are widely used. There is a saying that screw pumps can transport any medium. However, this does not mean that a single screw pump can transport all the media, but according to the characteristics of the media and the number of performance parameters, different types of screw pumps can be selected.


The selection of the structure of the triple screw pump can be made by referring to the series and types of the triple screw pump according to the installation and operation conditions of the pump, among which there are four principles that can be referred to:

Transport lubricating oil, choose pump with built-in bearing structure under 80 C.

When the temperature exceeds 80 C or the lubricity of the conveying medium is poor, the pump with external bearing structure is selected.

When conveying medium with poor fluidity and high viscosity or requiring conveying medium to heat or heat preservation, double-layer heating pump body structure is selected.

When conveying at high temperature, pumps made of high temperature resistant materials should be selected.

In addition, according to different conditions, the factors of material combination, inhalation capacity and matching motor should be considered comprehensively. As long as the selection is proper and the maintenance is reasonable, the three-screw pump can ensure satisfactory operation.

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