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In cooperation with a well-known pump manufacturer, EagleBurgmann Germany GmbH & Co. KG, Wolfratshausen, has developed a mechanical seal for High Pressure/High Temperature (HP/HT) applications. The seal has been specifically optimized for subsea pumps designed for an absolute pressure of up to 1,000 bar and ambient temperatures of up to 180 °C. It seals the motor and bearing unit in the pump against the multiphase medium crude oil.
More than twenty years of experience with subsea applications have gone into this development. The result is a product that is robust against diverse, extremely fluctuating operating conditions. Different process media, changing speeds, pressure ratios or temperatures cannot affect the seal. It corresponds to the life cycle of subsea pumps in deep-sea oil and gas production plants.
The seal is pressurized externally to achieve noticeably improved rigidity of the medium in the sealing gap even under fluctuating operating conditions and which ensures sufficient cooling at high temperatures.
In addition, the seal is completely free of elastomers in order to deal with the high pressures. Instead, a U-cup is a simple and clever secondary seal to separate the barrier fluid from the process fluid even in the event of a pressure reversal.
EagleBurgmann equips the mechanical seal with DiamondFace® technology. This provides the sliding faces with a microcrystalline diamond coating that protects them from wear caused by solids-laden media and enables partial dry running.
Sales via EagleBurgmann Germany in Wolfratshausen and all international branches: Tel. +49 8171 23 0, info@eagleburgmann.com, www.eagleburgmann.com
DiamondFace® increases the mechanical seal's robustness for HP/HT applications.
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.
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.