API 682 – PB100

New seal types and arrangements

The Durametallic PA Series is a cartridge, pusher, flexible stator, seal design for a wide range of refinery and petrochemical services ranging from water and caustics, up through light hydrocarbon services. Both the PA and PB series are available in three configurations:

100       (Arrangement 1) Single Seal

200       (Arrangement 2) Dual with
unpressurized buffer (tandem)

300       (Arrangement 3) Dual with
pressurized barrier (double)