Why should insulating flanges be periodically inspected and tested?

Insulating flanges play a crucial role in preventing electrical continuity between two piping sections, which is especially important in the handling of flammable liquids or chemicals. Over time, environmental factors, temperature changes, and the materials themselves can lead to contamination or degradation of the insulating material. Periodic inspections ensure that the insulation remains clean and functional, enabling it to effectively isolate electrical potentials and prevent sparks or currents that could lead to dangerous situations such as electrical arcs or fire.

Maintaining cleanliness is vital because contaminants can compromise the integrity of the insulation, leading to failures in electrical isolation. Regular inspection and testing help ensure that insulating flanges are functioning as intended, thereby maintaining the safety and efficiency of the system.

While checking for leaks, ensuring proper flow, and verifying cargo compatibility are generally important aspects of tanker operations, these reasons do not specifically address the unique role of insulating flanges in electrical isolation. Thus, ensuring insulation cleanliness remains the primary focus for their inspection and testing.