A Double Pipe Heat Exchanger consists of one pipe placed inside another, allowing two fluids to flow in opposite or parallel directions for efficient heat transfer. Its simple design makes it easy to construct, clean, and maintain. Commonly used in chemical, oil, and food industries, it is ideal for small-capacity and high-pressure applications. https://www.heatexchanger.co.in/Heat-Exchanger/Double-Pipe-Heat-Exchanger/