Installation Points Of Shell And Tube Heat Exchangers
May 18, 2026| The heat exchanger should undergo a hydrostatic test at 1.5 times its maximum operating pressure. For the steam section, the pressure should be no less than the steam supply pressure plus 0.3 MPa; for the hot water section, no less than 0.4 MPa. The pressure should be maintained at the test pressure for 10 minutes without drop.
Sufficient space should be provided at the front end of the shell-and-tube heat exchanger for removing the tube bundle. Specifically, the distance between the end caps and the wall or roof should not be less than the length of the heat exchanger. The clear width of the operating passageway should not be less than 0.8 m.
The installation height of all valves and instruments should facilitate operation and observation.
The vertical clearance from the highest point of the upper heater accessory (generally referring to the safety valve) to the lowest point of the building structure should meet the installation and testing requirements and should not be less than 0.2 m.
