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Agitator Dry Running Seals
Advanced Dry Running Seals for Agitators – Reliable Sealing Without External Lubricants
At GSI – Globe Seal Industries, we engineer high-performance agitator dry running seals specifically designed for top-entry and side-entry mixers, blenders, and reactors where external liquid barrier systems are impractical or undesired. These seals deliver exceptional reliability in processes that demand clean, leak-free operation without external lubrication or support systems.
Product Overview
Agitator dry running seals are mechanical seals purpose-built to operate without the need for barrier or flush fluids. Their self-lubricating face materials and precision-engineered designs allow them to handle shaft movements, misalignments, and process fluctuations while maintaining a tight seal against atmosphere.
Ideal for industries where contamination from external fluids must be avoided, or where utilities like seal flush water are unavailable, these seals ensure process purity and compliance with stringent quality standards.
Key Features
✔ No Barrier or Flush Required: Designed for completely dry operation, eliminating the need for external lubrication or support systems.
✔ Self-Lubricating Seal Faces: Advanced materials such as resin-impregnated carbon and special silicon carbide minimize friction and heat generation.
✔ Accommodates Shaft Run-Out & Axial Play: Tailored to handle the misalignment and deflections typical in agitator shafts.
✔ Compact Cartridge Design: Pre-assembled for easy, precise installation, reducing human error and shortening downtime.
✔ Integrated Dust or Gas Purge Options: Available for additional protection against fine powders or vapor ingress.
✔ Compliance with GMP & Hygienic Standards: Ideal for processes that demand zero contamination and easy cleaning.
Materials of Construction
GSI dry running agitator seals are manufactured using carefully selected materials to suit your process demands:
Seal Faces: Self-lubricating Carbon, Silicon Carbide, Tungsten Carbide for minimal wear under dry conditions
Secondary Seals: FKM (Viton), EPDM, PTFE, or Kalrez for chemical compatibility
Metal Parts: SS 316, Duplex & Super Duplex, Hastelloy, or Alloy 20 to resist aggressive media
Optional Bearings: Silicon Carbide or PTFE composites to stabilize shaft movement and reduce deflection
We precisely match these materials to your chemical, temperature, and mechanical environment.
Applications
GSI agitator dry running seals are trusted across diverse industries for processes such as:
Pharmaceutical Reactors & Fermenters
Food & Beverage Blending & Mixing Vessels
Powder & Slurry Agitators Without Available Flush Lines
Chemical & Specialty Resin Kettles
Paint & Ink Mixers Handling Solvent-Based Formulas
Water Treatment & Lime Slaker Mixers in Remote Locations
Benefits of Choosing GSI Agitator Dry Running Seals
✅ Eliminates External Seal Systems: Saves on utility costs, simplifies plant layouts, and avoids contamination from barrier or flush fluids.
✅ Safe & Hygienic: No risk of flush fluid entering the process, ensuring product purity and compliance with GMP or FDA requirements.
✅ Longer Service Life: Precision-balanced faces and self-lubricating materials reduce friction, extending seal performance even in dry conditions.
✅ Fast & Error-Free Installation: Cartridge design ensures correct axial settings and face alignment, minimizing startup complications.
✅ Custom-Engineered for Your Mixer: Designed to accommodate specific shaft run-out, vessel pressure, and cleaning requirements.