Magnetic burst indicator
In many process engineering applications, highly sensitive or hazardous substances and the requirement to keep the environment particularly clean necessitate the use of rupture discs with reliable rupture monitoring. Especially in such cases, these pressure protection systems must prevent the medium from escaping or volatilising even after the bursting disc has responded. The SVT PM magnetic burst indicator for metallic bursting discs was developed precisely for such cases. The STRIKO burst indicator is characterised by its simple handling and technical advantages. The SVT PM / SVT PM-Z completes the range of STRIKO rupture monitoring devices for bursting discs.
Magnetic rupture monitoring for maximum flexibility
The STRIKO SVT PM / SVT PM-Z burst indicator can be combined as a stand-alone component with almost all STRIKO metal bursting discs. For this purpose, the SVT PM is installed on the blow-off side directly behind the rupture disc in the STRIKO holders SHF-M, SHZ-M, SHU-M (also Pro version).
The independence of the SVT PM burst indicator from the rupture disc to form a stand-alone component ensures unprecedented flexibility in your application. The SVT PM can be easily retrofitted, replaced and – if necessary – subjected to a visual inspection. Replacement after the rupture disc has responded does not require any rewiring of electrical cables. If installed upstream of a safety valve, it is not necessary to remove the SVT PM for the function test of the safety valve, as it is independent of back pressure. Corrosion-resistant materials allow it to be used even with aggressive media. Highly volatile or highly toxic media can no longer escape through through-holes or porous seals thanks to the threaded blind hole for the magnetic field sensor – even if the combined rupture disc responds. This ensures the safety of personnel, the environment and systems and is also easy on your budget.
If you would like to find out whether the STRIKO SVT PM / SVT PM-Z burst indicator is also suitable for your application, simply contact our specialists for a free consultation or send us a completed enquiry form.
Advantages in the application
- Quick detection of a fault
- for signalling the response of a rupture disc
- Permanent, cost-effective solution for rupture monitoring
- Can be used in all STRIKO rupture disc holders for metal rupture discs
- later installation possible
- Simple installation
- Approval for use in potentially explosive atmospheres (ATEX)
- Temperature range permanent magnet: -50 °C to +350 °C
- Temperature range of magnetic field sensor: -25 °C to +70 °C
Specifications:
Switch element function
NAMUR Contact (NO)
Rated voltage Uo
8,2 V
Reverse polarity and short circuit protected
yes
Switch status display
All-round LED, yellow
Temperature range
25 °C to +70 °C
Connecting cable
2 m PVC-coated
Enclosure material
Stainless steel 1.4404 / AISI 316L (V4A)
Protection category
IP66 / IP67
NAMUR EN 60947-5-6:2000 / IEC 60947-5-2:2007
yes
Electro-magnetic compatibility
acc. NE 21:2007
ATEX certificate
2G
Note on ATEX:
All burst indicators / leakage sensors from STRIKO according to the type of protection are rated “i” intrinsic safety – “simple electrical equipment” when connected to an intrinsically safe circuit. The requirements on “simple electrical equipment” are covered in section 5.7 of the standards EN 60079-11:2012 or IEC 60079-11 Ed. 6:2011-06 “Explosive atmospheres – Part 11: Equipment protection by intrinsic safety ‘i’”.
Simple electrical equipment, designed in accordance with the requirements of section 5.7 of the standards EN 60079-11:2012 or IEC 60079-11:2011 and section 16.4 of the standards EN 60079-14: 2014 or IEC 60079-14 Ed. 5: 2013-11 “Explosive atmospheres – Part 14: Electrical installations design, selection and erection” do not require certification; see section 4.4.2 of EN 60079-14: 2014 or IEC 60079-14 Ed. 5: 2013-11.
Such parts are also not governed by directive 94/9/EC since they do not feature any potential source of ignition. The designation of simple equipment can be made by any person/institution, including the manufacturer or installer, and made by freely selectable designation marking or coding preferred for the installation/plant.