https://en.striko.de/products/bursting-discs/metal/flat-bursting-discs/
Series SZ
Types SZ-X / SZ-M / SZ-MV
Forward acting metal bursting disks are installed in a standard holder SHZ or in a pre-torqued holder SHZ Pro between flanges. They are especially suitable for securing medium to high working pressures.
Design examples
SZ-X in DN25
SZ-X in the holder SH-Z, opened disk
Models
| SZ-X | STRIKO – forward acting, x-form scored |
| SZ-M | STRIKO – forward acting, Multi-part (layer) design |
| SZ-MV | STRIKO – forward acting, Multi-part, Vacuum resistant |
Advantages in the application
- fragment-free opening behaviour
- ideal as single pressure relief unit or used in combination with safety valve
- high working ratio: up to 90%
- “Fail-Safe” design – incorrect installation leads to bursting of the SZ-X at or underneath the actual burst pressure
- also obtainable with a PTFE-liner
- equipped with a 3D name-plate for safe detection of correct direction of installation as a standard
- suitable for gasses, vapours and liquids
Specifications
| Materials | Stainless steels, nickel, special materials such as hastelloy, tantal |
| Nominal widths | DN 15 – DN 250 |
| Burst pressures | from 0.02 bar (g) to 200 bar (g) |
| Working ratio | up to 90 % |
| Burst tolerance | min +/- 5 % |
| Utilisation temperature range | -۲۰۰ ℃ to +480 ℃ |
| Bursting disk holder | SHZ and SHZ Pro |
| Vacuum support | optional |
| Burst / Leakage indication | optionally installed on discharge side |
| Installation before safety valve? | yes, since fragment-free opening |
Individual designs
There are a number of design options for the forward acting metal bursting disks. Whether vacuum resistant, with PTFE-liner or manufactured from special materials – just talk to our specialists. We are happy to advise you competently and comprehensively, in order to find the right solution for your application.
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)) |