|
Burgmann Industries: BuraTAL HT – the
new universal clean air seal set for valve spindles Current clean air regulations place stringent demands on the ability of valve spindle seals to prevent the escape of volatile emissions. By 2007, all new and existing industrial equipment in Germany will have to meet European regulations (IPC Directive 96/61/EC) and national regulations (e.g. the TA-Luft 2002 clean air act), and the equipment will have to be brought up to the appropriate technical standard.  The German producer Burgmann Industries GmbH & Co. KG has developed
the new BuraTAL-HT seal set for use on new installations or for retrofits
on all valves in the chemical, petrochemical, refinery and process
industries. The seals are resistant to nearly all chemicals (solvents,
hydrocarbons, acids and alkalis), steam, alcohol, water, oils, etc. (with
the exception of powerful oxidizing agents such as hot sulphuric acid and
nitric acid). This new seal set guarantees compliance with VDI leakage
guidelines over the entire temperature range between -200°C and +400°C.
The leakage rate does not exceed 10-4 mbar*l(s*m). The sophisticated
geometry of the sealing rings, which maintains constant surface pressure
on the seal set, ensures controlled operation. There is no need for an
additional live loading system. The special geometry covers a wide
tolerance range, and the seals adapt very well to the spindle and housing.
Up to 80% lower friction compared to standard graphite seal systems is
another advantage. Overall, the BuraTAL HT offers users excellent
opportunities for standardization and cost savings.Operating limits Temperature t -200°C to +400°C (steam +550°C) Chemical resistance pH 0-14 Sliding velocity max vg 2m/s Pressure p 300 bar Certification: Certified by MPA Stuttgart for compliance with TA-Luft up to 400°C, 40 bar, 1000 spindle cycles without live loading system For more information: www.eagleburgmann.com Posted: December 2, 2006 |
+ Media Sponsors +
Wilhelm
Sicking |
