Double Acting Cartidge mechanical seal. Typical applications: Sealing of toxic and explosive media. Designs: – 851B back to back – 851BT double pressure balanced – 851T-A – 851T tandem version according to API 682 – 851TB tandem face to back version / API 682 Sizes also available in inch dimensions Not all max. values may be claimed at the same time!
Design: double mechanical seal
Tandem / BtB: BtB, Tandem
Standard: Factory - Standard, API 682 4th Ed. (incl. ES)