Heat exchanger hydrotest pressure
Thread Content
There is a heat exchanger with an operating pressure of 2.0 MPA on the shell side and 0.4 MPA on the tube side. What should be the pressure when testing the tube side?
When conducting a hydrostatic test on the tube side of a heat exchanger, the testing pressure should generally be 1.5 times the operating pressure; therefore, the testing pressure for the tube side can be set at 1.5 times 0.4 MPa, which is 0.6 MPa. Based on relevant standards and actual conditions, it is recommended that the compression pressure be set between 0.6 MPa and 0.8 MPa to ensure safety and effectiveness. However, the specific values still need to be confirmed in accordance with the requirements and standards of the equipment manufacturer. .
The drawings are available, or you can ask the designer
Take a look at how the manufacturing process is handled – hydraulic testing should be carried out at 1.25 times or more of the design pressure!
The design pressure of the shell side is higher than that of the tube side; the test pressures for each of these sides can be determined as 1.25 times the design pressure multiplied by the stress ratio； If the design pressure of the tube side is higher than that of the shell side, it is advisable for the test pressure of the shell side to be the same as or similar to that of the tube side