Single Cartridge Mechanical Seals

A single cartridge seal typically features two primary sealing faces:

1. Rotating Face: This is attached to the shaft and rotates with the equipment. It is often made of materials like carbon, ceramic, or tungsten carbide, depending on the application and fluid being sealed.
2. Stationary Face: This face is fixed in position and remains stationary during operation. It is mounted in the seal housing and is usually made from similar materials as the rotating face.

Additional Components

• Spring(s): These provide the necessary pressure to maintain contact between the rotating and stationary faces, ensuring a tight seal.
• O-rings: Often included to provide additional sealing and prevent leakage around the outside of the cartridge.

Face Characteristics

• Material Selection: The choice of materials for the sealing faces is critical and can be customized based on factors such as temperature, pressure, and the type of fluid being handled.
• Face Finish: The surface finish of the sealing faces is also important. A smoother finish typically enhances sealing performance and reduces wear.

In summary, a single cartridge seal generally has two main sealing faces that work together to create a reliable barrier against leakage, along with other components that enhance its functionality and durability.