Some types of machinery are cumbersome to maintain. Large shafts, heavy components, and immovable drivers are some of these concerns.
Often, a typical mechanical seal is impractical to use by the nature of it’s installation mechanical seals requirements. lIn these cases it is frequently beneficial to use a Split Seal.
In a Split Seal, all components are literally cut or split in half and they are assembled onto the equipment without removal or disassembly of the major equipment components.
Standards and other documents relating to radial shaft seals
- ISO 6194-1:1982 Rotary shaft lip type seals – Nominal dimensions and tolerances
- ISO 6194-2:1991 Rotary shaft lip type seals – Vocabulary
- ISO 6194-3:1988 Rotary shaft lip type seals – Storage, handling and installation
- ISO 6194-4:1988 Rotary shaft lip type seals – Performance test procedures
- ISO 6194-5:1990 Rotary shaft lip type seals – Identification mechanical seals of visual imperfections
- SAE J946-1989 Application Guide
Since almost all seals utilize the process liquid or gas to lubricate the seal faces, they are designed to leak. Process liquids and gases containing hazardous vapors, dangerous toxic chemicals or flammable petroleum must not be allowed to leak into the atmosphere or onto the ground. In these applications a second “containment” seal is placed after the primary seal along the pump shaft. The space in between these two seals is filled with a neutral or compatible liquid or gas (generally nitrogen)
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