Striko – SU Reverse Acting Metal Rupture DiscEnquire Now

Striko - Reverse Acting Metal DiscSU-R Robust Disc
Striko - Reverse Acting Metal DiscSU-C Flow Optimised Disc
Striko - Reverse Acting Metal DiscSHU Pro Holder
Striko - SRV / PRV ProtectionSafety Relief Valve Protection
Striko - Safety Valve ProtectionSafety Valve Protection

BRAND: StrikoCATEGORY: Over Pressure Protection, Rupture Discs,

Striko SU reverse acting metal rupture discs (bursting discs) are high precision safety devices for overpressure protection that are installed in a standard holder SHU or in a pre-torqued holder SHU Pro between flanges. When the process pressure reaches the pre-defined limit, the disc opens to relieve the system keeping personal and plant safe.

Striko SU series can be used as a primary or secondary relief device and can also be used in combination with a safety valve. They are ideal for pulsating working pressures of medium to high strength.

Protect your Safety Valves

When using the Striko SU rupture disc before a safety valve, you

  • Can use a safety valve with standard lower cost materials in a corrosive application.
  • Reduce fugitive emissions past the safety valve, due to the rupture disc being leaktight.
  • Reduce the costs of maintenance extending the life of the safety valve
  • PRV Prevent fugitive emissions.
  • Stop viscous media from adhering to and blocking the safety valve, hindering its performance.

SU-C series is a concave domed C-scored rupture disc that fulfills the highest requirement of tightness. The SU-C is ideally suited to processes with gases, vapours and liquids with gas cushion reliability. Due to being non-fragmenting, it has the largest possible flow cross-section and is idealy suited for installing in front of a safety relief valve. They are installed in Striko SHU and SHU Pro holders.

SU-R series is a concave domed burst safety device. The bursting foil on the robust shear ring will be torn up in case of response. The SU-R protects processes with gases, vapours and liquids with gas cushion reliability. Due to its non-fragmenting design, it is ideal for installing in front of a safety valve. For pulsating operating pressures of medium to high intensity, the SU-R is the ideal pressure protection component for your system. Materials selected for the specific application, allow the use even with corrosive media of media that tends to cake on surfaces. They are installed in Striko SHU and SHU Pro holders.

Contact one of our technical specialists for a quote today or download the brochure to learn more!



Reverse acting metal rupture disc

  • Non-fragmenting
  • Leak tight preventing media leaking during normal operation
  • Ideal as single pressure relief unit or used in combination with safety valve
  • Vacuum resistant
  • Counter pressures up to min 1.4 times of the burst pressure are possible
  • Testing pressure relief 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 tends to “cake” onto surfaces
  • DN 25 – 250 / 1” – 10”
  • Burst pressures – From 0.3 bar.g to 70bar.g
  • Working ratio – 90%
  • Burst tolerance – +-5%
Temperatures-200° to 480°C
Stainless steel, nickel, tantalum, inconel or hastelloy,
Options &
  • Burst indicator or sensor

For applications where you need a simple and easy to install pressure relief safety device to protect your pressure vessel, tank or pipeline from overpressure or potentially damaging vacuum conditions. When you wish to protect your safety valve extending its lifespan.


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