Discussion on setting up double liquid level gauges in storage tanks
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Dear bosses, many storage tanks now need to be equipped with dual liquid level gauges, but recently I have seen many places using only one liquid level gauge. Does anyone know which standard the requirements for this dual liquid level gauge come from? In which scenario specifically is this dual liquid level gauge used?
There are no clear requirements, it depends on your own requirements.
See Articles 6.2 and 6.3 of GBT50770-2013. The judgment standard is SIL level.
Many of them are requirements in industry standards or product standards.
For example, this is the requirement for the number of liquid level gauges on the pressure deaerator of a power station.
Is your tank a large tank or an ordinary tank?