DiamondFaces®, the microcrystalline diamond coating from EagleBurgmann, raises the reliability and performance of your mechanical seals several times over.
EagleBurgmann is proud to report that the first high-pressure paddle dryers went into operation in 2006 at a silica production plant.
The machines were completely redesigned to withstand the high operating pressure (up to 20 bar). The solution, developed by a German manufacturer, was a pioneering achievement. The sophisticated shaft seal was developed in close collaboration with Burgmann Industries.
Paddle dryers are normally mounted horizontally with bearings at one or both ends. A shaft with paddles tailored to the specific process rotates inside the cylindrical chamber. The heating medium normally flows through a jacket which surrounds the drying chamber. The shaft is often hollow and is likewise heated with steam. Inside the dryer, the paddles continually circulate batches of material which are heated by the chamber walls and the shaft.
EagleBurgmann’s newly developed double Cartex® GSDN gas seal is the ideal solution for centrifugal pump applications at chemical plants and refineries. Users can install bi-directional gas-lubricated Cartex® GSDN seals to standardize their new pumps or to recondition existing pumps which have conventional stuffing box packings or liquid-lubricated mechanical seals.
Mechanical seals are used as shaft seals in pumps, agitators, compressors and other rotary machines handling liquid and gaseous media. The process pressures which have to be contained by the seals range from vacuum to more than 400 bar. In some cases, the chemical and thermal stability required of the mechanical seal is very high. The design of the seal and the choice of material from which it is made play a crucial role in making sure that it operates reliably for a sustained length of time under the conditions for which it was designed and for which the material was chosen.
It is not always easy to know which sealing system is best for your application. Operating parameters such as pressure, temperature, and speed may not be the only things to think about. Explosion protection (ATEX), environmental protection and operational safety can be equally important. If you are in the food or pharmaceutical industry, then GMP, FDA-compliant materials and hygienic design will be major issues. It’s best to seek professional advice and get the seal manufacturer on board as early as possible. This article compares different sealing systems for agitators and special equipment.
When media containing solids or media with a tendency towards glueing, sticking or hardening are used in a process, there may be problems for the shaft seals leading to a significant reduction in service life. Even in apparatus with a top drive in which the gas phase is sealed and there is normally no direct contact with the product, deposits in the area of the shaft seal represent a recurring problem, particularly with foaming, polymerizing and crystallizing media because of the high tank fill levels.
The EagleBurgmann type DR1 and DR2 Dry running seals are designed for agitators, mixers, reaction vessels, blowers, fans, etc. wherein shaft drive is located at the top of the vessel. The seal and seal faces are exposed to the gases/ vapors of the product and there is no liquid coming in contact with the seal and faces. That is why the Seal is called “Dry Deal”.
The EagleBurgmann AD5 seal is a balanced dry running seal having faced combination of Teflon with special filler v/s Silicon Carbide/Ceramic. It is ideally suited for slow speed agitators where mixing of sealant is not desirable.
Mechanical seals of the HJ92N series from EagleBurgmann are designed for media containing, solids or with high viscosity e.g. sugar, paper, sewage and waste water industry. The springs are product protected. There is no sticking or clogging making the design rugged and reliable. The seal is independent of direction of rotation.
The manufacturing of chemical and pharmaceutical products puts considerable strain on the sealing technology utilized. Optimum quality, a worldwide service network and decades of experience in application engineering make EagleBurgmann a leading manufacturer of sealing systems in these industries.
In addition to meeting stringent technical requirements, a seal has to adhere to many other regulations in connection with cleanliness, health and government legislation. EagleBurgmann mechanical seals have been used successfully worldwide in sterile processes for over 20 years.
The cutter heads on quarrying and mining machining are fed with water, not only for cooling purposes but also for settling the dust and extinguishing any sparks produced by the cutting tools. EagleBurgmann mechanical seals perform the dual function of rotary joint and seal for the cutter and roller heads.
EagleBurgmann sealing systems feature maximum operational reliability, convenient maintenance and low leakage rates with necessary environmental protective measures.
EagleBurgmann sealing systems feature maximum operational reliability, convenient maintenance and low leakage rates with necessary environmental protective measures.
Modern sealing technology makes a major contribution to optimized production processes and its further development. A large number of major international suppliers of machinery to the paper industry trust in EagleBurgmann seals.
With automations in marine applications and the protection of our seas, sealing technology is becoming increasingly important. EagleBurgmann seals meet these high economical and ecological demands and have been certified and authorized by many shipping institutions.
The building industry makes intensive use of submersible pumps because of their mobility. Thanks to their liquid-tight and pressure-proof design they are equally popular in waste water systems. EagleBurgmann elastomer bellows seals are a reliable and proven shaft seal solution for submersible motors in pumps, aerators, agitators, etc.
EagleBurgmann International
(Length 4:00)
Learn more about EagleBurgmann capabilities on an international level.
TotalSealCare™ Modular Seal Service
(Length 3:00)
Learn more about our TotalSealCare™ Service program offerings with a description of TotalSealCare™ and find the service module option that best meets your company’s need.
EagleBurgmann Service Centers – North America
(Length 4:20)
Learn more about our North America Service Centers and what they can do for you.
DiamondFaces® in Action
(Length 2:10)
Comparison of dry running capabilities between DiamondFaces® coated SiC faces and standard SiC faces.
Seal Teardown and Inspection Best Practices – An Introduction
(Length 6:46)
(Part 1 of 7) Watch Regional Engineer John Merrill demonstrate proper technique for the teardown and inspection of an EagleBurgmann Cartex seal.
