Agitator Single Seals
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Agitator Single Seals
Engineered Agitator Single Seals for Reliable Vessel & Mixer Sealing
At GSI – Globe Seal Industries, we specialize in designing and manufacturing high-performance agitator single seals that provide dependable sealing for mixers, reactors, blenders, and other top-entry or side-entry agitators. Engineered to handle shaft run-out, product slurries, and varying vessel pressures, our seals ensure long-term, leak-free operation for critical process equipment.
Product Overview
Agitator single seals are mechanical seals specifically developed for sealing rotating shafts in agitators and reactors where traditional pump seals are insufficient. They accommodate large shaft deflections, axial movements, and demanding media — from viscous fluids to abrasive or crystallizing slurries.
Our pre-engineered single agitator seals are compact, easy to install, and designed to withstand fluctuating process conditions while protecting product purity and minimizing emissions.
Key Features
✔ Designed for Mixer Dynamics: Accommodates shaft run-out, misalignment, and axial movement common in agitators and reactors.
✔ Robust Face Designs: Special wide seal faces handle product solids and provide effective sealing even in slurry or crystal-forming applications.
✔ Integrated Bearings (Optional): For additional shaft stabilization and minimized deflection.
✔ Single Cartridge Construction: Ensures quick, precise installation with factory-set face load, reducing errors and downtime.
✔ Optional Flush, Quench & Drain Ports: Supports CIP/SIP systems and helps remove heat or prevent product polymerization.
✔ Compliance with GMP & API Standards: Suitable for hygienic and hazardous service environments.
Materials of Construction
Our agitator single seals are available in a range of carefully selected materials to withstand challenging process conditions, including:
Seal Faces: Silicon Carbide, Tungsten Carbide, Resin-Impregnated Carbon, Ceramic
Secondary Seals: FKM (Viton), PTFE, EPDM, Kalrez, or FFKM for aggressive chemicals and CIP/SIP cycles
Metal Parts: SS 316, Duplex & Super Duplex, Hastelloy, Alloy 20 for corrosion resistance
Bearings (if included): Silicon Carbide or PTFE composite bushings
We match materials precisely to your chemical, temperature, and pressure profiles to maximize seal life.
Applications
GSI agitator single seals are trusted in diverse mixing and processing operations across:
Chemical Reactors & Polymer Processing
Pharmaceutical & Biotech Fermenters
Food & Beverage Blending Vessels
Paints, Inks & Coating Mixers
Pulp & Paper Stock Chests
Water Treatment Flocculators & Lime Slakers
Benefits of Choosing GSI Agitator Single Seals
✅ Reliable Sealing in Dynamic Conditions: Designed to manage shaft movement, vessel pressure variations, and product buildup.
✅ Reduced Maintenance Costs: Cartridge design minimizes installation errors, improves alignment, and extends service life.
✅ Enhanced Process Safety & Hygiene: Engineered to prevent leakage of hazardous or valuable products, protecting both your people and your process.
✅ Flexible, Customizable Designs: Tailored to your specific vessel nozzles, shaft diameters, run-out conditions, and cleaning requirements.
✅ Quick Service & Support: Expert assistance from selection through commissioning ensures your process runs smoothly.