Markus, there is no intention to raise the FRA rule for burst disc rating to above 190 bar. This is because many of the older regulators, valves etc. are only rated to 230 bar. If you have an extinguisher to EN 3 with a 250 bar disc, you will need to change the disc to a 190 bar rating. We will however, monitor the situation.
Paul Cooper
FRA Technical Team
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