The main purpose of using flange isolators in a pipeline system is to?

The primary function of flange isolators in a pipeline system is to prevent corrosion between pipeline sections. Flange isolators are designed to electrically isolate one section of a pipeline from another, which is crucial in environments where galvanic corrosion could occur. When different metals are used in a pipeline system, and they come into contact with each other and an electrolyte (such as water), it can create a galvanic cell that leads to accelerated corrosion in one of the metals. By using flange isolators, this electrical connection is broken, reducing the risk of such corrosion issues and thereby extending the lifespan of the pipeline.

The other answers focus on different operational aspects. While controlling temperature changes and increasing flow rate can be important in a pipeline system, those functions are typically handled by other means such as insulation or pipe design, rather than flange isolators. Similarly, while noise reduction can be a beneficial side effect of certain types of pipeline design or equipment, it is not the primary role of flange isolators, which are specifically focused on preventing corrosion.