Prolonging seal life with monolithic carbon design
✍ Scribed by Henri Azibert; A.W. Chesterton
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 308 KB
- Volume
- 1996
- Category
- Article
- ISSN
- 1350-4789
No coin nor oath required. For personal study only.
✦ Synopsis
A major petrochemical plant increased seal life from three months to one year by switching to a new seal design with narrow, monolithic carbon stationary faces that stay cool and in full contact under fluctuating conditions. The seals used before could not achieve reliable control of emissions below 1000 ppm. The monolithic carbon faces used in the new seals exhibit controlled thermal growth and maintain full face contact throughout cycling. The new seals also use a carbon grade that covers such a wide application range that it handles all applications in the plant, where carbon is compatible, thus reducing inventory and purchasing costs. Contact: Hem-i Azibert, Design Engineering Manager, A.W.