Material Combinations (Optional)
Seal Faces:
Carbon Graphite / Silicon Carbide (SiC)
Silicon Carbide (SiC) / Silicon Carbide (SiC)
Tungsten Carbide (TC) / Tungsten Carbide (TC)
Secondary Seals (O‑rings/Bellows):
NBR, EPDM, FKM (Viton), PTFE, Metal Bellows (316L/Inconel)
Metal Hardware: 304 / 316L Stainless Steel, Duplex Steel
MOR 8BIVORS is a heavy‑duty, single‑end, balanced cartridge mechanical seal designed for severe pumping applications in the chemical, petrochemical, and general industrial sectors. Its "BIVORS" designation typically indicates a Bellows/Integrated/ Variable/O‑ring/Rigid/Single configuration, combining the reliability of metal bellows or multi‑spring technology with a compact, pre‑assembled cartridge design.
This seal is engineered to handle corrosive fluids, high temperatures, and abrasive slurries, serving as a direct replacement for various mainstream single mechanical seal models.
Features
Integrated Cartridge Structure
Pre‑assembled as a single unit, eliminating on‑site spring adjustment and measurement errors. Ensures fast, error‑proof installation and maintains consistent performance.
Balanced Seal Face
Features a balanced face design (load factor < 1) that reduces face loading, minimizes friction heat generation, and enables stable operation under high pressure and high speed conditions.
High‑Performance Elastic Element
Equipped with either a welded metal bellows (for ultra‑high temperature and corrosion resistance) or a multi‑spring assembly (for strong particle tolerance). Both designs provide excellent axial compensation for wear and shaft misalignment.
Anti‑Block & Anti‑Corrosion
The stationary spring/elastomer isolation design prevents springs from direct contact with process media, making it ideal for abrasive slurries and sticky fluids.
Built‑in Flush Port
Comes with a dedicated flush connection (visible as the red port in typical applications) to support API Plan 11/23/32 schemes, ensuring cooling, cleaning, and barrier fluid supply.
Bidirectional Rotation
Suitable for both clockwise and counterclockwise rotation, making it compatible with most standard process pumps and agitator shafts.
Advantages
Plug & Play Installation: Cartridge design reduces installation time by 80%.
Severe Service Resistance: Excels in high‑temperature, corrosive, and abrasive environments.
Low Maintenance: Eliminates common failure points caused by dynamic elastomer fatigue.
Cost‑Effective: Direct replacement for equivalent single mechanical seals, offering superior performance at a competitive price.
Applications
Chemical Processing: Acids, alkalis, solvents, and corrosive liquids
Wastewater Treatment: Sludge, sewage, and abrasive wastewater
Power & Desulfurization: Limestone slurry, circulating water
Pulp & Paper: Stock, white liquor, and high‑temperature cooking fluid
General Industry: Lubricating oil, hot water, and standard process pumps
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