Burst Rating Types0 pages

R U PT U RE DISC

BURST
RATING
TYPES

RATED, SPECIFIED
AND MIN/MAX

Three rating types are available to specify
the burst pressure requirements of a
Continental Disc Corporation rupture disc:
RATED, SPECIFIED and MIN/MAX.
The need to choose a specific rating type can be
narrowed down to two main reasons:
Code Compliance
t

For compliance with ASME Section VIII Division 1, the RATED
rating type must be used.

tFor compliance with the Pressure Equipment Directive
97/23/EC (to carry the CE Mark) and the ISO 4126-2 standard,
either the SPECIFIED or MIN/MAX rating type must be used.

Customer Preference
t

To specify the rupture disc bursting requirement and how
that information is marked on the rupture disc tag.

RATED
RATED RATING TYPE: DEFINITIONS
RATED Burst Pressure // The customer-indicated burst pressure value at a coincident
temperature that indicates the amount of differential pressure necessary to cause the rupture
disc to burst. A Manufacturing Range is applied to this value.
Manufacturing Range // The pressure range agreed upon by the customer and Continental Disc
Corporation in which the RATED (Marked) Burst Pressure must fall. This range of pressure is
based on a plus and/or minus percentage or a plus and/or minus pressure value applied around
the indicated RATED Burst Pressure.
RATED (Marked) Burst Pressure // The burst pressure at coincident temperature that the rupture disc tag is marked with after manufacturing. A Burst Tolerance is applied to this value.
Burst Tolerance // The pressure variation around the RATED (Marked) Burst Pressure that the
rupture disc will burst, at the coincident temperature.

PHOTO CAPTION

Maximum Recommended Operating Pressure // Continental Disc’s recommendation of the
maximum pressure to operate the rupture disc in order to maximize the life of the rupture disc.
This is used as one of the indicators in determining an appropriate type of rupture disc for an
application.

PERFO RMANC E

U ND ER

PRESS U RE

®