Flygt Pump Seals: Troubleshooting Guide for Seal Leakage Problems

Flygt Pump Seals: Troubleshooting Guide for Seal Leakage Problems

Introduction:

Pump seals play a crucial role in preventing leakage and maintaining the overall efficiency of Flygt pumps. However, in some instances, seal leakage problems may arise, causing disruptions and decreased pump performance. In this troubleshooting guide, we will explore common causes of seal leakage and provide practical solutions to resolve such issues. Whether you are a maintenance professional or a pump operator, this comprehensive guide will assist you in identifying and rectifying seal leakage problems efficiently.

1. Understanding Flygt Pump Seals:

Flygt pump seals are designed to provide a high level of reliability and efficiency. These seals are typically made from durable materials like silicon carbide, tungsten carbide, or carbon, which ensure long-term performance. They are installed within the pump casing to create a barrier that prevents the leakage of the pumped fluid. However, despite their robust construction, various factors can lead to seal leakage.

2. Common Causes of Seal Leakage:

2.1. Wear and Tear:

One of the primary reasons for seal leakage is wear and tear over time. Continuous operation of the pump causes friction between the rotating and stationary components of the seal, eventually leading to degradation. Additionally, exposure to corrosive liquids may accelerate the wear and tear process. Regular inspection of seals is paramount to ensure early detection of any signs of damage.

2.2. Incorrect Installation:

Improper installation of seals can also result in leakage problems. This can include inadequate tightening of gland bolts, misalignment of seal components, or incorrect seal selection for specific operating conditions. It is crucial to follow the manufacturer's guidelines during installation to prevent such issues.

2.3. High Operating Temperatures:

Exposure to high temperatures can compromise the integrity of the seals, leading to leakage. Temperatures above the recommended limits can cause the seal materials to degrade, lose their resilience, and ultimately fail. Monitoring and controlling the operating temperature of the pump is essential to prevent seal leakage due to excessive heat.

2.4. Contamination:

Contaminants in the pumped fluid, such as dirt, debris, or abrasive particles, can accelerate seal wear. This contamination can result from improper filtration systems or the pump operating in harsh environments. Implementing effective filtration mechanisms and regular cleaning of the pump can reduce the risk of seal leakage caused by contamination.

2.5. Shaft Misalignment:

Misalignment between the pump shaft and the associated equipment can exert undue stress on the seals, leading to leakage. Factors contributing to misalignment can include foundation settlement, improper installation, or excessive vibration. Conducting regular alignment checks and addressing any misalignment issues promptly can significantly reduce seal leakage problems.

3. Troubleshooting Seal Leakage:

3.1. Regular Inspection and Maintenance:

To minimize seal leakage problems, a proactive approach to inspection and maintenance is necessary. Setting up a routine maintenance schedule for seal inspection will help identify any signs of wear or damage. Timely replacement of worn-out seals can prevent leakage issues before they occur.

3.2. Correct Installation Procedure:

Proper installation is critical to ensure the seals function optimally. Follow the manufacturer's guidelines carefully during the installation process. Use the recommended torque settings for gland bolts and verify the alignment of seal components. Additionally, choose the appropriate seal type based on the specific operating conditions of the pump.

3.3. Monitoring Operating Temperatures:

Continuous monitoring of the pump's operating temperature will help prevent excessive heat-related seal leakage. Installing temperature sensors and integrating them into the pump's control system can provide real-time data, enabling prompt action when temperatures exceed the specified range.

3.4. Implementing Effective Filtration Systems:

Installing reliable filtration mechanisms before the pump intake can significantly reduce the risk of contamination and subsequent seal leakage. Regularly check and clean the filtration systems to maintain their effectiveness. Additionally, consider implementing additional filtering mechanisms if operating in highly contaminated environments.

3.5. Ensuring Proper Shaft Alignment:

Regularly inspect the pump's alignment to prevent seal leakage problems caused by shaft misalignment. Utilize laser alignment tools to accurately assess and correct any misalignment. This practice will enhance the overall performance and longevity of the pump seals.

Conclusion:

Flygt pump seals are essential components that require regular maintenance and monitoring to prevent leakage problems. Identifying the causes of seal leakage and implementing appropriate troubleshooting measures will significantly enhance the efficiency and reliability of Flygt pumps. By following the guidelines provided in this troubleshooting guide, operators and maintenance professionals can proactively address seal leakage issues, ensuring uninterrupted performance and extending the operational lifespan of Flygt pump seals.