Flygt Mechanical Seal Troubleshooting Guide: Tips and Techniques

The mechanical seal is a critical component in the operation of any industrial pump, particularly the Flygt brand. Ensuring that the mechanical seal is functioning properly is essential for preventing leaks and ensuring the efficient operation of the pump. However, like any piece of machinery, mechanical seals can experience issues that require troubleshooting and maintenance. In this guide, we will explore some common issues with Flygt mechanical seals and provide tips and techniques for troubleshooting and resolving these issues.

Understanding the Basics of Flygt Mechanical Seals

Flygt mechanical seals are designed to create a barrier between the rotating shaft of the pump and the stationary pump housing, preventing the escape of liquid and the entry of contaminants. They consist of two main components: the rotating seal and the stationary seal. The rotating seal is attached to the pump shaft and moves with it, while the stationary seal is fixed to the pump housing. When the pump is in operation, the rotating and stationary seals come into contact with each other, creating a seal that prevents leakage.

One of the most common issues with mechanical seals is leakage. If the seal is not functioning properly, it can allow liquid to escape from the pump, leading to inefficiency and potential damage to the pump and surrounding equipment. Other issues include wear and tear on the seal components, misalignment, and improper installation. In the following sections, we will discuss these issues in more detail and provide guidance on troubleshooting and resolving them.

Identifying Common Issues with Flygt Mechanical Seals

There are several common issues that can arise with Flygt mechanical seals, each of which can have a significant impact on the performance of the pump. One of the most common issues is leakage, which can be caused by a variety of factors, including wear and tear on the seal components, misalignment, or improper installation. Other issues include overheating, excessive vibration, and unusual noises during operation. In order to effectively troubleshoot these issues, it is important to first identify the underlying cause.

Wear and tear on the seal components is a common issue that can lead to leakage and other problems. Over time, the seal faces can become worn or damaged, compromising the integrity of the seal. This can be caused by a variety of factors, including abrasive particles in the pumped liquid, improper lubrication, or excessive pressure or temperature. In some cases, wear and tear may be the result of poor maintenance practices. It is important to regularly inspect the seal faces and replace them if any signs of wear are detected.

Misalignment is another common issue that can affect the performance of the mechanical seal. If the rotating and stationary seals are not properly aligned, they may not be able to form a tight seal, leading to leakage and other problems. Misalignment can be caused by a variety of factors, including improper installation, thermal expansion, or excessive vibration. It is important to carefully align the seals during installation and to regularly check for any signs of misalignment during routine maintenance.

Improper installation is a common cause of issues with mechanical seals. If the seals are not installed correctly, they may not be able to form a tight seal, leading to leakage and other problems. Common installation issues include improper alignment, inadequate lubrication, and inadequate tightening of the seal components. It is important to carefully follow the manufacturer's guidelines for the installation of mechanical seals and to ensure that all components are properly aligned and tightened.

Troubleshooting and Resolving Common Issues

When troubleshooting issues with Flygt mechanical seals, it is important to first identify the underlying cause before taking any corrective action. In the case of leakage, for example, it is important to determine whether the issue is being caused by wear and tear on the seal components, misalignment, or improper installation. Once the underlying cause has been identified, corrective action can be taken to resolve the issue and prevent it from recurring in the future.

If wear and tear on the seal components is identified as the underlying cause of an issue, it may be necessary to replace the seal faces. This can typically be done by disassembling the mechanical seal, removing the old seal faces, and installing new ones in their place. It is important to carefully follow the manufacturer's guidelines for replacing seal faces and to ensure that the new faces are properly installed and aligned.

In the case of misalignment, corrective action may be taken to realign the rotating and stationary seal components. This can typically be done by adjusting the position of the seal components and ensuring that they are properly aligned. Care should be taken to ensure that the seals are not subjected to excessive force during the realignment process, as this can cause further damage to the seal components.

In cases where improper installation is identified as the underlying cause of an issue, corrective action may be taken to reinstall the mechanical seal following the manufacturer's guidelines. It is important to carefully follow the manufacturer's guidelines for the installation of mechanical seals and to ensure that all components are properly aligned and tightened. Additionally, it may be necessary to address any issues with inadequate lubrication or tightening of the seal components.

Preventative Maintenance and Best Practices

In order to prevent issues with Flygt mechanical seals, it is important to follow best practices for preventative maintenance and care. Regular inspection and maintenance of the seals can help to identify and address potential issues before they become more serious. This may include regular inspection of the seal faces, lubrication of the seal components, and inspection of the seal housing for signs of wear or damage.

In addition to regular maintenance, it is important to follow best practices for the operation of the pump to minimize wear and tear on the mechanical seals. This may include maintaining appropriate pressure and temperature levels, minimizing the presence of abrasive particles in the pumped liquid, and avoiding excessive vibration or force on the seals. Following these best practices can help to extend the life of the mechanical seals and prevent potential issues.

Conclusion

Flygt mechanical seals are a critical component in the operation of industrial pumps, and it is essential to ensure that they are functioning properly to prevent leakage and maintain the efficient operation of the pump. Common issues with mechanical seals, such as wear and tear on the seal components, misalignment, and improper installation, can be effectively addressed through troubleshooting and maintenance practices. By following best practices for preventative maintenance and addressing any issues as they arise, it is possible to extend the life of the mechanical seals and prevent potential problems.