Download Mechanical Seals Catalogue

Single Cartridge Mechanical Seals for TKL Flowserve Pumps

Single Cartridge Mechanical Seals for TKL Flowserve Pumps

Single cartridge mechanical seals are a crucial component for TKL Flowserve pumps, enhancing their operational reliability and efficiency. These seals are engineered to address common challenges faced in various industrial applications, providing a robust solution for fluid containment and reducing maintenance requirements.

Design and Construction

Single cartridge mechanical seals are pre-assembled units that combine multiple sealing components into a single cartridge. This design simplifies installation and maintenance, ensuring precise alignment of the seal faces. The typical construction includes a stationary seal face, a rotating seal face, secondary seals (O-rings or gaskets), a gland plate, and a sleeve that fits over the pump shaft. The materials used for these components vary based on the application’s requirements, including carbon, silicon carbide, tungsten carbide, and various elastomers for secondary seals.

Operational Benefits

  1.  Ease of Installation and Maintenance: The single cartridge design eliminates the need for complex assembly procedures, reducing the time and skill required for installation. Maintenance is straightforward, as the entire cartridge can be easily replaced, minimizing downtime.
  2. Enhanced Seal Reliability: Single cartridge seals offer superior alignment and reduced risk of installation errors, which are common with traditional multi-component seals. This ensures consistent sealing performance and prolongs the seal’s lifespan.
  3. Reduced Leakage: The precise alignment and robust construction of single cartridge seals significantly reduce the likelihood of leakage. This is crucial in applications where fluid containment is critical, such as in chemical processing or oil and gas industries.
  4. Improved Safety: By minimizing the risk of leakage, single cartridge seals contribute to a safer working environment. This is particularly important when dealing with hazardous or toxic fluids.

Applications in TKL Flowserve Pumps

TKL Flowserve pumps are widely used across various industries, including water treatment, chemical processing, oil and gas, and power generation. The integration of single cartridge mechanical seals enhances the performance and reliability of these pumps in several ways:

  1. Water Treatment: In water treatment plants, maintaining the integrity of the fluid being pumped is essential. Single cartridge seals prevent contamination and leakage, ensuring the purity of the water supply.
  2. Chemical Processing: The chemical industry often deals with aggressive and corrosive fluids. Single cartridge seals, with their durable materials and robust design, can withstand harsh conditions, providing reliable sealing and reducing maintenance frequency.
  3. Oil and Gas: In the oil and gas sector, the prevention of leakage is critical to avoid environmental hazards and maintain operational efficiency. Single cartridge seals offer the necessary reliability and durability to handle the demanding conditions of this industry.
  4. Power Generation: Power plants rely on pumps for various processes, including cooling and fuel handling. Single cartridge seals ensure the efficient operation of these pumps, reducing the risk of downtime and maintaining the plant’s productivity.

Material Selection

The choice of materials for single cartridge seals is crucial to their performance. Common materials include:

  • Carbon: Used for the rotating seal face, carbon provides good thermal conductivity and resistance to wear.
  • Silicon Carbide: Known for its hardness and chemical resistance, silicon carbide is often used for the stationary seal face.
  • Tungsten Carbide: Offering excellent wear resistance, tungsten carbide is suitable for applications involving abrasive fluids.
  • Elastomers: O-rings and gaskets made from elastomers such as Viton, EPDM, or Nitrile are selected based on their compatibility with the pumped fluid.


Single cartridge mechanical seals are an integral component for TKL Flowserve pumps, offering numerous operational benefits, including ease of installation, enhanced reliability, reduced leakage, and improved safety. Their application across various industries, from water treatment to oil and gas, highlights their versatility and importance in maintaining efficient and reliable pump operations. By selecting the appropriate materials and ensuring proper installation, single cartridge seals can significantly extend the lifespan of TKL Flowserve pumps and reduce overall maintenance costs.


Mechanical Seals for:

  • Centrifugal Pumps
  • Slurry Pumps
  • Submersible Pumps
  • Mixers & Agitators 
  • Compressors
  • Autoclaves
  • Pulpers