Germany ALL WEILER Classic SN Series Three screw pump Introduction (I)

ALLWEILER, a globally trusted industrial pump, was founded in 1860, a long history pump company in Germany. It is recognized by the industry as one of the world's top ten industrial pump manufacturers and a famous German industrial pump manufacturer. Large production plants are set up in Radolfzell and Botrop of Germany, with sales channels covering more than 100 countries and regions around the world. As early as the 1980s, it established cooperative relations with Chinese enterprises. There are many three Screw pump Skills come from ALLWEILER.

ALLWEILER has many products, including single screw, double screw, triple screw, centrifugal pump, axial flow pump and hose pump. During this period, ALLWEILER's three screw pump has a long history and a number of suitable market segments. The SN/SM series products are even more classic. This article will give a brief introduction to the use of SN series products, and the primary contents covered in this article are all from the original technical data of ALLWEILER in Germany. SM and SN have the same structure, but the additional pressure is one level higher, and the knowledge points they use can be shared.

SN product sequence

1、 Model selection

ALLWEILER three screw pump is mainly used for the transportation of various oil products, such as smooth oil, hydraulic oil, fuel oil, vegetable oil and other oil products with certain smoothness. ALLWEILER has developed special products for some professions with special needs: for example, EMTEC series of emulsion pumps developed for machine tool professions. In order to select a suitable pump type from many series of products, users are required to provide precise operating conditions, including media, temperature, viscosity, flow, pressure, available cavitation allowance, etc. The engineers of Shanghai Kunjin Electromechanical Co., Ltd. can calculate the available series of products based on this information through ALLWEILER special selection software, and then decide one or several recommended products based on relevant experience and user's preference.

The selection of smooth oil pump is relatively simple. All series of products can be used to transport smooth oil. What we need to do first is to locate a product that is closest to user expectations according to user needs. For example, for a demand with a pressure lower than 16bar, if users care about the cost performance ratio, they can introduce TRILUB series, which are very competitive products in the low pressure and smooth category; If the user has requirements for the planned 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 raw material pump will be the best choice with high cost performance.

SNA series steel raw material three screw pump

For the selection of fuel pump, it is necessary to consider such issues as external bearing, mechanical seal conflict surface, pump body insulation, etc. The engineers who have more experience in dealing with these needs can consult the engineers of Shanghai Kunjin Electromechanical.

For some special uses, such as polymer transportation in the field of fine chemicals, SN can also serve. Of course, it is necessary to make some modifications to the standardized products to satisfy such use. In some cases, the magnetic drive version of SN is required. ALLWEILER has good use cases in these aspects.

To sum up, comprehensive and specific information required by users is the major prerequisite for successful model selection.

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