x Level Indicators (gauge glasses): Manually blown down at least once per shift (or once per day for continuous operation). x Boiler and feed water: Monitoring of the water treatment plant parameters, hotwell temperature and water sample test results. It is strongly recommended that gauge glasses on steam boilers are always left open to the boiler during normal operation and the connections to the gauge glasses shall be fitted with auto shut off devices for safety of boiler operatives. The levels of attendance and manual testing will depend on the boiler equipment layout. They should be considered in conjunction with the findings of the risk assessment and information on the type and level of manning that is intended to be employed. It is more important that the target levels of monitoring and supervision are met rather than having a boiler that matches the example in the diagram. Typical equipment for the boiler:
BG01 Guidance on the safe Operation of Steam Boilers Edition 2 – © 2019
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