Advantages This product represents the cheapest heat exchanger construction. There is no internal gasket. The tube bundle can effortlessly removed. This permits easy acces for cleansing and inspecting of tube from outside. U, Bend shape allows each individual tube to expand and contract independently, Thus taking care ofdifferential expansion. The tube bundle fits very close to the inadjacent to the shell. It minimizers by, Passing and utilizes fully the space within the shell. Any practical even number of passes on tube side is possible. Since there is no internal cleaning, A bonnet works well for use at the stationery tube end. This offers a saving over more expensive channel with flangers and bolted on cover. Applications the u, Tube exchanger is particularly recommended designed for elevated pressure and temperature applications. Common uses are for condensing steam inside the tubes or boiling freon or ammonia the u, Tube design is often utilised for integral tower / bottom reboilers without shells and for kettle type reboilers. It enjoys broad application in boilers feed water heater and is frequently employed as a tank suction heater for pre, Heating of various products before pumping shell open at u, Bend end .