It is a stable,secure Cartridge seal.It can work safely under fluctuating condition.

   Features:

    Low emissions face design.Narrow contact geometry limits friction by up to 60%.In-series configuration for the most demanding applications.

   Axially offset port for venting in vertical applications.

  Bi-direction barrier fluid connections for shaft rotating in either direction.

  Self-Centering Clamp Ring squares and aligns faced for superior emissions control from star-up.

  API610 Gland with Quench and ports optional.