where should the pressure boiler supplement pipe

ASME B31 - Pressure Piping

The code covers boiler external piping for power boilers and high temperature high pressure water boilers in which steam or vapor is generated at a pressure of more than 15 psig (100 kPa gage) and high temperature water is generated at pressures exceeding 160 psig (1103 kPa gage) and/or temperatures exceeding 250 o F (120 o C).

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