BURST DISC INDICATOR0 pages

B.D.I.

®

BU RST
DI SC
IN D ICATO R

The B.D.I. (Burst Disc Indicator) Alarm
System is designed for use with Continental Disc
®

rupture discs. The B.D.I. Alarm System signals the
system operator when a rupture disc has burst to
relieve an overpressure or vacuum condition.
Continental Disc Rupture Discs with the B.D.I. Alarm System

WHEN NOTIFICATION
OF PRESSURE RELIEF
IS ESSENTIAL

The heart of the system is the B.D.I. Alarm Strip. Upon disc rupture, the B.D.I.
Alarm Strip is severed, disrupting the flow of electric current through the strip.
The change in the electric circuit status can be monitored in a control room,
or an optional alarm monitor is available from Continental Disc to warn of a
rupture disc burst and/or activate appropriate equipment.
The B.D.I. Alarm System should be specified:
t

tWhen warning of pressure relief
is essential for plant safety

t When a signal is required to initiate
an automatic function, process
change or shut down procedure

t When immediate notice is needed
of relief of an overpressure or
vacuum condition to indicate
process malfunction

tWhen loss or contamination of
product will occur if a rupture disc
is not replaced immediately

t When indication is vital that a
rupture disc has burst and toxic
substances are venting

tWhen monitoring of rupture discs
is important in hard-to-reach
locations

Proven Design
The B.D.I. Alarm Strip is designed to break when its correspond­ng rupture disc
i
bursts. Continental Disc’s design has been proven through years of testing,
both in the field and in our ASME accepted flow testing laboratory. This testing
has proved the reliability of the alarm strip when used with Continental Disc
Corporation rupture discs. The B.D.I. Alarm Strip does not affect the life or
performance of the rupture disc.
The B.D.I. Alarm Strip is carefully designed and manufactured with the following
features in mind:
Resistant to chemical attack and corrosion
Usable over a wide range of temperatures
Easily replaceable upon disc rupture
Compatible with standard design Continental Disc Corporation rupture discs

ATEX Directive Compliant
The B.D.I. Alarm Strip and the MTB‑700 Alarm Monitor have been certified for
use in “potentially explosive atmospheres” according to the requirements of the
European Union, ATEX Directive 94/9/EC. ATEX type approval and quality assurance
notification certificates are available on our website at www.contdisc.com.
B.D.I. with shielded cable

PERFO RMANC E

U ND ER

PRESS U RE

®