What type of deluge valve can prevent corrosion from seawater and salt spray?
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A certain oil tank farm is located in the open sea, where salt spray corrosion is severe. Moreover, considering that during a fire scenario the deluge valves might be exposed to seawater for a short period of time, what type of deluge valve should be used to prevent corrosion? ?
If seawater is being used, how can we expect reducing corrosion just by replacing a valve? I think there isn’t any. Besides, what corrosion could one consider in the event of a fire?
Maintain it regularly; if it doesn’t work, replace it
It is recommended to use British DEP501 or Belzona 5811 for applications in seawater, marine environments, as well as in conditions involving high salt and humidity levels; these products have yielded excellent results.
It’s probably a problem with the material of this valve body; using SS16L material can provide resistance to seawater corrosion.
Both SS316 stainless steel and PTFE can be used for a long time, but it is unlikely to be possible to use them permanently.