Single Pass Shell and Tube Heat Exchanger

Our company works deeply with Jiangnan University and Nanjing Tech University. We use their latest research to make our products better. Customers ask us, "Do you have your own R&D team?" We answer, "Yes, we do." Our R&D team works with these universities to solve many heat exchange problems. The single pass shell and tube heat exchanger has only one tube pass. Fluid enters from one end and leaves from the other end. It goes through the tube bundle just once. Its structure is very simple. The fluid resistance is low. You can arrange the tubes in an equilateral triangle or square pattern. This unit fits small flow rates and large temperature differences.

Customers ask us, "Can you build from our technical drawings or prototypes?" We answer, "Yes, we can." We support non‑standard custom designs. The single pass heat exchanger does not split the flow. All tubes are in parallel. That is why the pressure drop is very small. This unit works for processes that cannot accept a big pressure drop. Small flow process fluids often use this single pass type. For example, a special chemical with a flow rate of only 10 m³/h would have low speed and poor heat transfer in a multi‑pass unit. Single pass keeps the speed in a good range. Laboratories and pilot plants also like single pass units because they are simple and easy to clean. In refrigeration systems, if the pressure drop for evaporating or condensing refrigerant must be very small, we use single pass. We have a research institute customer in China. They run a pilot experiment with a flow rate of only 5 m³/h. We designed a single pass shell and tube heat exchanger for them. The tube side runs hot fluid. The shell side runs cooling water. The pressure drop was only 0.02 MPa. That met the experiment requirements perfectly.

Customers ask, "What is the minimum order quantity?" We answer, "One unit." Another customer asks, "Do you provide free samples?" We answer, "No, we don't." But we can give you a detailed calculation sheet. Our factory has a precision testing center. Every unit gets 100% inspection before it leaves. Export packing uses fumigated wooden boxes and waterproof cloth. Payment terms are 40% in advance and 60% before shipment. We believe that if you need a low‑resistance, small‑flow heat exchange solution, the single pass shell and tube type is the best choice.

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