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EagleBurgmann, one of the leading manufacturers of industrial sealing technology, is launching a new generation of dry running shaft seals for agitators onto the market. In addition to the known benefits of this type of mechanical seal (there is no seal supply system, for example), the new SeccoMix1 is also silent running and has been prototype tested for use in ATEX category 1 (zone 0). These shaft seals are used in mixers, agitators, dryers and filter strainers.
Mechanical seals from the SeccoMix series have been used successfully for over a decade. This practice-oriented seal concept has become established on the market and proven its worth all over the world. They are designed as single seals in a semi-cartridge construction, and consist of a sprung seal face and a stationary seat unit, giving them the added benefit of being easy to fit.
Dry running SeccoMix seals need no supply system, so they are a significant advantage over liquid or gas-lubricated seals in this respect. Given this saving on the purchase and operation of a seal supply system, the investment costs for a dry running single seal are as little as 30 % of those for an equivalent liquid-lubricated seal.
Supply systems can also increase the work involved for the system operator if there are no incoming lines available for water and nitrogen, for example, as is often the case with mobile agitator tanks. Other difficult safety-related situations occur if the dimensions of the agitator tank require the supply system to be attached at a great height. Maintaining and topping up the supply medium can be very time-consuming in such situations.
Dry running seals used to cause quite considerable noise emissions, depending on the type and operating conditions, due to the lack of lubricating medium. In addition, the dry running seals generally gave off a great deal of heat during operation.
These disadvantages have been eliminated by the new generation SeccoMix1. The redesign means that the seal runs silently, and a patented air cooling system for the seal face has significantly reduced the temperature rise. SeccoMix1 can now even be used in potentially explosive areas (ATEX), making temperature monitoring unnecessary for category 1 (zone 0).
Standard SeccoMix1 single seals are used for top-driven machines and in non-hazardous process media. For side entires of the type often found in dryers, there is the SeccoMixR version with rotating stationary seat. There is so little abrasion that the SeccoMix1 can even be used without problems in food and pharma applications.
* With cooling flange
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.