ALL Germany ALLWEILER, an industrial pump trusted by WEILER, was founded in 1860, a pump company with a long history in Germany. It is recognized by the industry as one of the world's top ten industrial pump manufacturers. It is a German industrial pump manufacturer. Large production plants are set up in Radolfzell and Botrop of Germany, and the sales channels cover more than 100 countries and regions around the world. As early as the 1980s, it established cooperative relations with Chinese enterprises. A large number of domestic Three screw pump The technology comes from ALLWEILER Company.

ALLWEILER has many products, including single screw, double screw, triple screw, centrifugal pump, axial flow pump and hose pump. ALLWEILER III Screw pump It has a long history and a number of products suitable for market segmentation. The SN/SM series products are even more classic. This article will give a brief introduction to the application of SN series products, and the main contents involved are all from the original technical data of ALLWEILER in Germany. SM has the same structure as SN, but its rated pressure is one level higher, and its application knowledge points can be shared.

SN product sequence

1、 Model selection

ALLWEILER three screw pump is mainly used to transport various oil products, such as lubricating oil, hydraulic oil, fuel oil, vegetable oil and other oil products with certain lubricity. For some industries with special needs, ALLWEILER has developed special products, such as EMTEC series of emulsion pumps developed for the machine tool industry. In order to select a suitable pump type among many series of products, users need to provide accurate application conditions, including media, temperature, viscosity, flow, pressure, available cavitation allowance, etc. The engineers of Shanghai Kunjin Electromechanical can calculate the available series of products through ALLWEILER special selection software based on these information, and then decide one or several recommended products according to relevant experience and user's preference.

The selection of lubricating oil pump is relatively simple. All series of products can be used to transport lubricating oil. What we need to do is to locate a product that is closest to user expectations according to user needs. For example, if the pressure is lower than 16 bar, if the user cares about the cost performance, he can recommend TRILUB series, a competitive product in the low-pressure lubrication field; If the user has requirements for the design life of the pump and needs independent replaceable bushings, SN will be the preferred product; If the user puts forward API requirements, the SNA all steel pump will be a cost-effective choice.

SNA series steel three screw pump

For the selection of fuel pump, it is necessary to consider such issues as external bearing, friction surface of mechanical seal, heat preservation of pump body, etc. These need more experienced engineers to deal with, you can consult the engineers of Shanghai Kunjin Electromechanical.