Reverse Acting rupture discs are
oriented in a system with the process
media pressure against the convex side
of the disc (Figure C), placing the rupture
disc in compression. As the burst pressure
rating of the disc is reached, the
compression loading on the rupture disc
causes it to reverse, snapping through the
neutral position and causing it to open by a
predetermined scoring pattern or knife
blade penetration.
A reverse acting rupture disc provides
some advantages, as compared to tension
type rupture discs, which may warrant
consideration when selecting a rupture disc.
These advantages include:
• Zero manufacturing range allowing
the rupture disc to operate to 90%
of its stamped burst pressure
• Full vacuum capabilities without the
need of an additional support member
• Longer service life under cyclic or
pulsating conditions
• Constructed using thicker materials
providing greater resistance to
corrosion
Pages 5-17 of this guide provide a
brief overview of the various tension
and reverse acting design rupture discs,
holders, accessories and options offered
by Continental Disc Corporation. For
detailed information regarding a specific
design, refer to the bulletin noted at the
end of each product overview, or contact
the factory directly.