Single Dry Mechanical Seal – Bearing Assembly Configuration

Dry mechanical seals are engineered specifically for top-driven applications such as agitators, reactors, mixers, reaction vessels, and blowers—where the shaft is typically positioned at the top of the vessel. These seals operate without any liquid lubrication, as the sealing faces are exposed only to process gases or vapours. This eliminates the need for quenching or external supply systems, hence the term “Dry Running Seal.”

The design features externally mounted, rotating, multiple spring-loaded components located on the atmospheric side, offering reliable performance even in demanding gas-phase environments. Dry-running mechanical seals are available in non-cartridge, semi-cartridge, and cartridge configurations, with or without an integrated bearing assembly, to accommodate various installation preferences and operational requirements.

By eliminating the need for auxiliary systems such as barrier fluid or cooling units, these seals significantly reduce the risk of product contamination and simplify system maintenance. Their efficient and contamination-free operation makes them ideal for sensitive processes across the chemical, pharmaceutical, and food industries.

Key Features:

• Directionally Independent Operation: Functions effectively regardless of shaft rotation direction, enhancing application versatility.
• Externally Mounted Design: Facilitates easy inspection, operation, and maintenance without disassembling the process equipment.
• Rotary Multi-Spring Mechanism: Ensures uniform axial load on the sealing faces, promoting stable performance and extended seal life.
• Top and Side Entry Compatibility: Engineered to accommodate both top and side shaft entry setups, offering broad installation flexibility.
• Optional Bearing Assembly: Available with or without an integrated bearing to suit specific mechanical load and alignment requirements.
• Cost-Effective with Rapid Delivery: Offers a practical balance of performance, affordability, and short lead times to meet operational demands.
• No Cooling or Lubrication Required: Eliminates the need for auxiliary cooling or lubrication systems, reducing complexity and operational overhead.
• Simplified Installation and Maintenance: Designed for straightforward assembly and servicing, minimizing downtime and reducing maintenance costs.
• Flexible Construction Options: Offered in non-cartridge, semi-cartridge, and cartridge formats to align with different installation preferences and standards.
• Balanced and Unbalanced Designs: Available in both hydraulically balanced and unbalanced configurations to match varying pressure and process conditions.
• Factory Assembled and Tested: Each unit is pre-assembled and rigorously tested to ensure optimal performance, consistency, and reliability upon installation.
• Single Seal Configuration: Delivers dependable sealing performance in dry-running applications, eliminating the need for complex dual-seal arrangements.

Specification: