Double-disc

Elfab has added a new design
to its existing pressure-relief
assembly range that prevents
environmental contamination
in severe process conditions.

The Double-Disc
Assembly comprises primary
and secondary bursting discs
that are both reverse-acting,
both forward-acting or now a
combination of the two, plus
a pressure gauge or switch to
monitor the space between
the discs. The product aims to
help the increasing number of
companies facing the
pressures of zero emissions
and other environmental
concerns.

In the
event of
chemical
attack
causing
pinholing
of the
primary
disc, the
secondary
disc prevents pollution of the
environment, while the
intermediate pressure sensor
alerts process managers and
maintenance teams to the
need to replace the disc that
has operated.