EagleBurgmann international
EagleBurgmann WORLDWIDE
With around 250 locations and 90 serve centers, we are represented in the most important economic regions of the world. The advantages are clear: short paths to our customers, fast response times and a shared language.
EagleBurgmann Espey
Mixer
Agitators primarily find application in the food and pharmaceutical industries, as well as in the chemical sector. Agitators are usually closed off by compression packings or mechanical seals. Special seal solutions are needed if highly viscous media generate large radial deflections of the shaft, or when the temperatures in the seal area are high. Espey® carbon floating ring seals from EagleBurgmann Espey have been designed to cope with large radial shaft deflections, endless axial movements in implementations without bearings, and also for temperatures well above 500 °C (932 °F) (without additional cooling facilities). They meet a large number of requirements, such as compatibility with foods and robustness, and have been used for years in numerous applications.
Application example: Sealing of a mixer in the herbicide production
Issue and challenge:
Chlorine, in the form of chlorates, is the basic material for the manufacture of herbicides. The material is dampened with water and mixed with other chemicals appropriate for the final application to prepare it for further processing. This is done under a vacuum using a two-shaft paddle mixer with screws rotating in opposite senses. In order to seal the shaft at the mixer housing, the operator required a seal with a shaft sleeve to protect the paddle shafts. It would have to keep the dusts and the chlorine gases generated in the process within the mixer housing, and its function would have to remain unimpaired by the presence of the powder.
Solution from EagleBurgmann Espey:
The Espey solution for the 2-shaft paddle mixer is a combined Espey® WD200/500 with a connection for barrier gas and three seal rings. Its split housing permits assembly without dismantling the drive motors and is designed for a temperature of 94 °C (201.2 °F), vacuum, and a rotation speed of 30 rpm. Dry air is used as the barrier medium; adequate quantities are available without additional supply equipment. The dust present at the seals inside the mixer is kept away from the sealing region by slip rings. Because the shafts of the paddle mixer do not have suitable wear protection, Espey designed a two-piece shaft sleeve with a suitable coating to protect the shaft. The seal solution has a long service life, is maintenance-free, and compensates for shaft movements.
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The Eagleburgmann Group
Sealing technology for plants and machines
EagleBurgmann is one of the worldwide leading providers of industrial sealing technology. Mechanical seals, seal supply systems, magnetic couplings, carbon floating ring seals, expansion joints, gaskets and packings as well as comprehensive services are used wherever reliability and safety are needed.
Mechanical seals and more
Sealing technology by EagleBurgmann is used worldwide in oil and gas industries, refineries, the petrochemical, chemical, and pharmaceutical industries, food processing, energy, water, mining, paper, aerospace, and other industries. Close to 5,800 employees provide their ideas, solutions, and commitment so that customers can rely on our sealing technology.
What makes us stand out is our excellent quality, great innovative capacity, and an extensive product portfolio for nearly all industrial processes and fields of application. Our product portfolio includes everything from mechanical seals and seal supply systems to magnetic couplings, carbon floating ring seals, expansion joints, and gaskets and packings as well as comprehensive services. Since we are part of the German Freudenberg and Japanese EKK group, we have all the necessary resources for a firmly based reliable partnership.