Forward Acting Metal Bursting Discs

Serie(n): SZ

Typ(en): 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.

Models

SZ-X

STRIKO - Forward Acting, X-shaped Pre-Scored

SZ-M

STRIKO - Forwar Acting, Multilayered

SZ-MV

STRIKO - Forwar Acting, Multilayered, Vacuum Supported

Design Examples

SZ-M

SZ-X

SZ-MV

SZ-M in holder SHZ

SZ-X in holder SHZ

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, tantalum

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

-200 ℃ to +480 ℃

Bursting disk holder

SHZ and SHZ Pro

Vacuum support

optional

Burst indicator

optionally installed on discharge side

Installation before safety valve?

yes, since fragment-free opening

Accessories - Alarm transmitter

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))

Individual solutions

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.