Introduction to Steam

  1. Steam Trap Selection

     

    1. Identification of steam traps

After selecting the model, identify the steam trap to be used by checking the restrictions specified for each steam trap, such as maximum operating pressure, maximum operating temperature, as well as bore size, body material, and connections.

 

Please refer to Table 3.2 for a summary of standards related to steam trap constraints, and their meanings.

 

 

Table 3.2 Steam trap standards

 

 

Standards Meaning

PMA （Maximum allowable pressure)

Maximum pressure which the steam trap body is not damaged

PMO (maximum operating pressure)

Maximum pressure at which the steam trap works normally

PMOB (maximum operating back pressure)

Maximum back pressure in which steam trap works normally

TMA (maximum allowable temperature)

Maximum temperature at which the body of the steam trap is not damaged

TMO (maximum operating temperature)

Maximum temperature at which steam trap works normally

⊿PMN（minimum operating back pressure）

Minimum operating back pressure at which the steam trap works normally

The amount of condensate flow

Maximum amount of condensate flow at which the steam traps are used at its maximum operating pressure

Large condensate emissions

 

Steam Trap Selection
by Industry

Steam traps have various models and features.
Suitable steam traps can be selected when it is determined whether each feature suits the condition of use.