Vented blowdown tanks must be designed for a minimum working pressure of 50 psi and be built in accordance with Section VIII of the ASME Code.If a blowdown tank is not vented, it must meet the requirements of the ASME Code,be manufactured to the maximum allowable working pressure of the boiler, and be equipped with a safety relief valve of capacity equal to that of the attached boiler.
8 AAC 80.090
Authority:AS 18.60.180