Double Cartridge Seals
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Double Cartridge Seals
Engineered Double Cartridge Seals for the Toughest Industrial Applications
At GSI – Globe Seal Industries, we design and manufacture robust double cartridge seals that provide superior sealing integrity for the most demanding and hazardous process environments. Built for reliability, safety, and ease of maintenance, our double cartridge seals help protect your critical equipment and ensure compliance with stringent environmental standards.
Product Overview
Double cartridge seals, also known as dual cartridge seals, incorporate two sets of sealing faces within a single, pre-assembled cartridge unit. This design provides an additional layer of protection, utilizing a buffer or barrier fluid to isolate the process medium from the atmosphere.
Ideal for sealing aggressive, hazardous, or abrasive fluids, our double cartridge seals ensure leak-free operation even under high pressures and temperatures.
Key Features
✔ Dual Seal Faces: Provides primary and secondary sealing, greatly enhancing containment of hazardous or valuable process fluids.
✔ Barrier or Buffer Fluid Compatibility: Designed for use with API Plan 52, 53A/B, 54 systems for improved lubrication and cooling.
✔ Pre-Assembled & Factory Tested: Ensures perfect face alignment, eliminates complex on-site adjustments, and minimizes installation errors.
✔ Balanced, Non-Clogging Designs: Handles fluctuating pressures without excessive face loading, suitable for slurries or crystallizing services.
✔ Integrated Quench, Flush & Drain Ports: Facilitates easy integration with your existing seal support systems.
✔ Compliance with API 682 & ISO 21049: Meets global standards for critical sealing applications.
Materials of Construction
Our double cartridge seals are manufactured using carefully selected, high-grade materials to withstand aggressive service conditions, including:
Seal Faces: Silicon Carbide, Tungsten Carbide, Carbon, Ceramic
Secondary Seals: FKM (Viton), EPDM, PTFE, Kalrez, depending on chemical compatibility
Metal Parts: SS 316, Hastelloy, Duplex & Super Duplex Stainless Steel, Alloy-20
We precisely match materials to your process requirements to ensure maximum seal life and operational reliability.
Applications
GSI double cartridge seals are trusted across critical and hazardous process industries, including:
Oil & Gas Production & Refining
Chemical & Petrochemical Plants
Pharmaceutical Manufacturing
Pulp & Paper Processing
Slurry & Mining Pumps
Food & Beverage Applications Requiring Zero Emission Leakage
Benefits of Choosing GSI Double Cartridge Seals
✅ Enhanced Environmental Safety: Dual seal arrangement with barrier/buffer systems eliminates leakage of toxic, flammable, or corrosive fluids.
✅ Improved Equipment Uptime: Balanced seal faces reduce wear, extend MTBF (mean time between failures), and cut maintenance costs.
✅ Simplified Maintenance: Cartridge design allows quick removal and replacement without disturbing pump alignment or impeller clearances.
✅ Energy & Cost Efficiency: Proper face load control reduces power consumption and seal wear.
✅ Custom Configurations Available: We tailor seal geometries, materials, and connections to precisely match your operating conditions.