Coast Guard Regulations (46 CFR) permit tubular type water gage glasses on auxiliary boilers, provided the maximum allowable working pressure does not exceed __________.
β’ 46 CFR requirements for boiler fittings and accessories β’ Differences between main boilers and auxiliary boilers in terms of pressure limits β’ Typical pressure limits for tubular type water gage glasses
β’ Consider why the Coast Guard might restrict tubular gage glasses to lower pressures β’ Think about the relative safety and strength of tubular glasses versus more robust water level indicators β’ Compare the usual operating pressures of auxiliary boilers with the safe pressure range for tubular gage glasses
β’ Verify the specific 46 CFR section that addresses water gage glasses on auxiliary boilers β’ Check the maximum allowable working pressure mentioned there for tubular type glasses β’ Make sure you are not confusing requirements for main propulsion boilers with those for auxiliary boilers
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