Metal bellows seals for chemical applications (API 682, Type B)
Description
Cartridge dual welded metal bellows mechanical seals of SDVT family are mainly designed for chemically aggressive fluids at petrochemical and chemical plants.
SDVT family seals are used for the same applications as the followings seals:
MFL65N by Burgmann Germany
BH/BXW by Flowserve, USA
670/680/676 by John Crane, USA
Advantages
- Due to use of metal bellows, there is not a single dynamic o-ring. Inexpensive chemically resistant static o-rings can be used to lower the costs. A typical application example would be solvents pumps.
| Technical Data |
|---|
| Temperature |
From -70 up to + 260°C |
| Pressure |
Up to 20 bar |
| Linear Speed |
Up to 25 m/sec |
See also:
- SD - Dual cartridge welded metal bellows mechanical seal, for high temperature applications
- SO - Single cartridge welded metal bellows mechanical seal, for high temperature applications
- RDT-37 - Tandem o-ring mechanical seal
- RDT-48A - Tandem o-ring mechanical seal, for high pressure applications
- RO - Single cartridge o-ring mechanical seal
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Note: the above mentioned trade marks are property of their respective owners.
