Conventional burst indicator devices require cables to be mounted on the rupture disc, which must then be routed out through the rupture disc holder. This is not the case with the NIMU. A signaling indicator is attached to the rupture disc during its manufacturing. The actual sensor is screwed into a blind tap in the rupture disc holder, where it monitors the position of the signaling indicator on the rupture disc. This means that the cable only starts outside the rupture disc holder.

After a pressure relief, and the associated opening of the rupture disc, the outlet part of the rupture disc holder must be removed, the rupture disc replaced, and afterwards the system can be put back into operation. Gone are the days, when the signaling cables have to be routed again to the respective switching box. This allows the colleagues from the electrical department to devote their attention to other tasks.


Additionally: The process is absolutely leak-tight. The blind tap in the holder replaces the otherwise necessary continuous holes. The absence of perforated gaskets (for conventional signaling cable holes in the holder) means that the utilized gaskets cannot become porous, thus preventing an escape of the process media.

Ms Liz Chiu –
C&C Global, Houston, Texas


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