A double pipe heat exchanger is a simple and efficient heat transfer device consisting of one pipe inside another, allowing two fluids to exchange heat while flowing in opposite (counterflow) or the same (parallel flow) directions. It is commonly used in small-scale industrial applications due to its compact design, ease of maintenance, and cost-effectiveness. Made from materials like... https://www.heatexchanger.co.in/Heat-Exchanger/Double-Pipe-Heat-Exchanger/