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)