Reverse Acting Metal Rupture Disc

Serie(n): SU
Typ(en): SU-R / SU-C

STRIKO reverse acting metal rupture discs 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.


  1. SU-R
    STRIKO – Reverse Acting, Shear Ring
  2. SU-C
    STRIKO – Reverse Acting, C-Shaped Pre Scored

Design Examples

SU-C in holder SHU
SU-C in holder SHU
SU-R in pre-torqued holder SHU Pro
SU-R in pre-torqued holder SHU Pro

Advantages in the application

  1. fragment-free opening behaviour
  2. ideal as single pressure relief unit or used in combination with safety valve
  3. Vacuum resistant
  4. optimum working ratio: 90%
  5. counter pressures up to min 1.4 times of the burst pressure are possible
  6. testing safety valves without time consuming removal
  7. high pressure change resistance
  8. equipped with a 3D name-plate for safe detection of correct direction of installation as a standard
  9. ideal for securing media that tend to “cake”



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 disk holder

SHU and SHU Pro

Vacuum support

not necessary

Burst indicator

optionally installed on discharge side

Installation before safety valve?


Accessories - Alarm transmitter

  1. SVT 02
    Burst Indicatior for breakage of rupture disc / opening of safety valve
  2. SVT 05
    Leakage sensor (activates already for the smallest leaks)
  3. SVT AM
    Full metal alarm for rupture disc monitoring (for high temperatures up to +600 ℃ and at aggressive media)
  4. SVT AM-L
    Alarm for rupture disc/breakage monitoring (use for lowest burst pressures, from 10 mbar (g))

Individual solutions

The are a number of configuration options among our STRIKO reverse acting metal rupture 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!

Your contact for Reverse Acting Metal Rupture Disc

Answering your questions precisely and competently - that is our goal.
Simply get in touch directly with your contacts from the divisions.


Marc Juckschat

Product Management
+49 2261 9855-18

Frank Stephan

Project Management
+49 2261 9855-25

Cornelia Raedel

Order Processing

Ardit Mimini

Order Processing
+49 2261 9855-26

Alexandr Ulrich

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