What is the difference between a pressure tank and a pressure vessel?

Many industrial engineers, maintenance teams, and even facility managers often use the terms “pressure tank” and “pressure vessel” interchangeably—leading to critical misunderstandings in design, procurement, safety compliance, and legal obligations. Confusing these two can result in non-compliant installations, potential safety violations, and unexpected failures. This article will clarify the core differences between a pressure tank […]
