Bursting Discs, Burst Indication, Static Mixers, Heat Exchanger.

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Reverse Acting Metal Bursting Disks

Series SU
Types SU-R / SU-C / SU-X

STRIKO reverse acting metal bursting disks are installed in a standard holder SHU or in a pre-torqued holder SHU Pro between flanges. They are especially suitable for securing pulsating working pressures of medium to high strength.

Design examples
Bursting Disks Series SU

SU-C in DN50

Bursting Disk SU-C in Holder

SU-C in the pre-torqued holder SH-U Pro

SU-R STRIKO – reverse acting, shearRing
SU-C STRIKO – reverse acting, C-form scored
SU-X STRIKO – reverse acting, x-form scored
Advantages in the application
  • fragment-free opening behaviour
  • ideal as single pressure relief unit or used in combination with safety valve
  • Vacuum resistant
  • optimum working ratio: 90%
  • counter pressures up to min 1.4 times of the burst pressure are possible
  • testing safety valves without time consuming removal
  • high pressure change resistance
  • equipped with a 3D name-plate for safe detection of correct direction of installation as a standard
  • ideal for securing media that tend to “cake”
Materials Stainless steels, Inconel, nickel, special materials such as hastelloy
Nominal widths DN 25 – DN 250
Burst pressures from 0.3 bar (g) to 70 bar (g)
Working ratio 90 %
Burst tolerance min +/- 5 %
Utilisation temperature range -200 ℃ to +480 ℃
Bursting disc holder SHU and SHU Pro
Vacuum support not necessary
Burst / Leakage Indication optionally installed on discharge side
Installation before safety valve? yes


Individual designs

The are a number of configuration options among our STRIKO reverse acting metal bursting discs. Whether with integrated burst indicatio, in standard materials or special materials – just talk to our specialists. We are happy to advise you competently and comprehensively!


Accessories – Burst / Leakage Indication
Series Description
SVT 02 Burst Indicatior for breakage of bursting disk / opening of safety valve
SVT 05 Leakage sensor (activates already for the smallest leaks)
SVT AM Full metal alarm for bursting disk monitoring (for high temperatures up to +600 ℃
and at aggressive media)
SVT AM-L Alarm for bursting disks/breakage monitoring (use for lowest burst pressures,
from 10 mbar (g))

PDF Application Data Sheet Bursting Disk