3.2　Allowable Working Pressure and Allowable Working Temperature of Rotary Machines

3.2.1　The allowable working pressure and allowable working temperature of rotary machines shall be determined based on the process operating conditions and design parameters of rotary machines.

3.2.2　The maximum allowable working pressure of pressure-containing casings shall conform to Table 3.2.2，and shall match with pressure ratings of adjacent flanges.

Table 3.2.2　Maximum Allowable Working Pressure of Pressure-containing Casing

Note:the release pressure of pressure relief valve is taken as 1.05-1.15 times maximum working pressure.

3.2.3　For the rotary machines installed indoors or hot（or cold）insulated，the maximum（or minimum）allowable working temperature of their pressure-containing casings shall be determined in accordance with Table 3.2.3.

Table 3.2.3　Maximum（or Minimum）Allowable Working Temperature（t）of Pressure-containing Casings

3.2.4　For the rotary machines installed outdoors without insulation，their minimum allowable working temperature shall be determined based on the minimum ambient temperature specified in utilities conditions.