Aesseal SMSS-23 Mechanical Seal

SMSS23™ Plan 23 Single Cartridge Mechanical Seal from AESSEAL is a compact, pre-assembled seal designed for Plan 23 operation in pumping systems. It is described as a single cartridge mechanical seal that incorporates a pumping ring, which recirculates a portion of the pumped fluid to the seal interface to aid cooling and lubrication at the faces. This model, part of the AESSEAL SMSS family, is marketed specifically as SMSS23™ Plan 23, a Plan 23 single-stationary seal that combines a cartridge design with integrated pumping-ring functionality for easier installation and maintenance. In Plan 23 configurations, the pumping ring supports seal reliability by maintaining a controlled environment around the seal faces, often in systems with a cooling jacket or external recirculation loop. The SMSS23 is suitable for use in applications where a Plan 23 configuration is specified, offering the benefits of a ready-to-install cartridge assembly and reduced risk of misalignment or improper gasketing during service. AESSEAL is the manufacturer of this seal, and SMSS23 represents AESSEAL’s commitment to Plan 23 compatibility within the SMSS single-seal lineup.