WHAT CAUSES ROTARY JOINT FAILURE?

Rotary joint(swivel rotary joint) failure can arise from various mechanical and operational factors. Here are the primary causes:

Mechanical Wear and Tear
Mechanical wear is a significant contributor to rotary joint failure. This wear typically results from constant friction between the rotating parts, leading to degradation of seals and other components. Over time, this can result in leaks and operational inefficiencies.

Misalignment Issues
Misalignment of the rotary joint is another common cause of failure. If the rotary joint is not properly aligned during installation, it can lead to uneven wear and stress on the components, ultimately resulting in premature failure. Ensuring correct alignment is crucial for maintaining the integrity of the joint.

Contamination
Contaminants in the fluid passing through the rotary joint can also lead to failure. Debris, such as rust particles or dirt, can damage seals and bearings, causing leaks. It is essential to filter fluids adequately to prevent such contamination.

Pressure and Temperature Extremes
Operating conditions that exceed the rated pressure and temperature specifications can lead to significant stress on the rotary joint. For example, closing valves while fluid is still hot can create overpressure situations that may crush seals or lead to other failures.

Inadequate Lubrication
Using incompatible lubricants or failing to maintain proper lubrication can cause early bearing failure. Mixing different types of grease can result in chemical reactions that degrade the lubricant’s effectiveness. Regular maintenance and appropriate lubrication are vital for optimal performance.

Environmental Factors
Environmental conditions, such as exposure to extreme temperatures or vibrations, can impact the sealing capability of rotary joints. High rotational speeds and varying duty cycles must also be managed carefully to avoid damaging seals.

Stress During Installation
If stress is not relieved during installation, it can lead to uneven wear over time. Proper installation techniques should consider the weight and positioning of the rotary joint to minimize stress on its components.

By addressing these factors through careful design, installation, and maintenance practices, the reliability and longevity of rotary joints can be significantly improved.