We can bend the tube at variety of radius based on sets of mould series, the material can be seamless carbon steel tube, welded carbon steel tube, stainless steel seamless tube, stainless steel welded tube, alloy tube and titanium tube.

U-tube heat exchanger is a kind of shell-and-tube heat exchanger, which is a typical process equipment commonly used in petrochemical production. With the enlargement of petrochemical equipment and the development of thermal power and nuclear power technology, the U-tube heat exchanger has good thermal compensation performance, good heat transfer performance, strong pressure bearing capacity, simple structure, easy maintenance and cleaning, with other advantages, the U tubes have been more widely used.

However, because the tubes in the middle part of the tube bundle are difficult to replace, and the U-shaped heat exchange tubes are prone to ellipticity and residual stress during the bending process, which will affect the service life of the heat exchange tubes. Therefore, according to the requirements of the standard, when there is a requirement for stress corrosion resistance or the elimination of residual stress, after the carbon steel and low alloy steel U-shaped heat exchange tube bends are qualified, the bend section and the straight pipe section of at least 150mm should be eliminated. Stress heat treatment. After heat treatment, the hydraulic test is carried out one by one to ensure the performance of the heat exchange tubes.