The Ultimate Guide to Flygt Mechanical Seals: Everything You Need to Know

Flygt mechanical seals are essential components of a pump that ensures the safe and efficient operation of the pumping system. These seals form a barrier between the pumped liquid and the surrounding environment, preventing leakage and contamination. In this guide, we’ll explain everything you need to know about Flygt mechanical seals, including their functions, components, types, maintenance, and troubleshooting.

Functions of Flygt Mechanical Seals

The primary function of Flygt mechanical seals is to prevent pumped liquid from leaking out of the pump and into the environment. They also prevent contaminants from entering the pump and damaging its components. Additionally, mechanical seals reduce friction and wear between the rotating and stationary pump parts, which prolongs the lifespan of the pump.

Components of Flygt Mechanical Seals

Flygt mechanical seals consist of four primary components: stationary seal face, rotating seal face, secondary seal, and metal components. The stationary seal face is attached to the pump housing or casing, while the rotating seal face is attached to the shaft or impeller. The secondary seal prevents the pumped liquid from entering the seal chamber and is usually made of an elastomeric material such as rubber or silicone. The metal components provide support and alignment for the seal faces and secondary seal.

Types of Flygt Mechanical Seals

There are two main types of Flygt mechanical seals: single and double seals. Single seals consist of one stationary and one rotating seal face, while double seals consist of two pairs of seal faces separated by a buffer or barrier fluid. Double seals provide an additional level of protection against leakage and contamination and are often used in applications where the pumped liquid is hazardous or costly. There are also several subtypes of Flygt mechanical seals, including multi-spring, elastomer bellows, metal bellows, and cartridge seals.

Maintenance of Flygt Mechanical Seals

Proper maintenance is essential to ensure the efficient operation and long lifespan of Flygt mechanical seals. Some maintenance tasks include monitoring the seal faces for wear and damage, checking and replacing the secondary seal and metal components, and inspecting the seal for proper alignment and balance. It is also important to use the correct seal material and fluid for the pumped liquid and to follow the manufacturer’s recommendations for the seal installation, operation, and maintenance.

Troubleshooting Flygt Mechanical Seals

Despite proper maintenance, Flygt mechanical seals can still experience problems such as leaking, overheating, and excessive wear. Some common causes of these problems include incorrect installation, misaligned or unbalanced seal faces, contaminated or incompatible fluid, and excessive operating temperature or pressure. To troubleshoot these issues, it is important to identify the root cause and take appropriate corrective actions such as adjusting the alignment or balance of the seal faces, replacing the secondary seal or metal components, or selecting a different seal material or fluid.

Conclusion

Flygt mechanical seals are critical components of a pump that ensure the safe and efficient operation of the pumping system. They prevent leakage and contamination, reduce friction and wear, and prolong the lifespan of the pump. By understanding the functions, components, types, maintenance, and troubleshooting of Flygt mechanical seals, you can ensure the optimal performance and reliability of your pump.