Rupture Indicators - Inductive Rupture Indicators | DonadonSDD
Rupture Indicators - Inductive Rupture Indicators | DonadonSDD

Rupture Indicators - Inductive Rupture Indicators | DonadonSDD

The rupture indicator for industrial plants at risk of counterpressure

In all those industrial plants where counterpressure risks exist, just as in those operating at low pressures, traditional rupture indicators often do not give satisfying results. To solve this issue, inductive rupture indicators are used, since they can signal the disc's breakage even in such particular conditions.

DonadonSDD's rupture indicators are not only functional at low pressures, but they also respect the standards of both ATEX and NAMUR environment directives, which makes them usable even in those applications and cases where explosion risks exist, in full respect of actual norms.

Description

NAM05

NAM 05 inductive rupture alarm systems are recommended for installation on rupture discs and explosion vent panels.

The NAM 05 indicator is composed of:

an inductive proximity sensor installed downstream the disc or panel

a target supplied with the disc or panel

When the disc opens, the target is moved and the sensor sends a signal to the plant safety system. The discs or panels are supplied with a new target.

NAM 05 is an intrinsic safety device certified:

ATEX II 1G Ex ia IIC T6

ATEX II 1D Ex iaD 20 T 108°C

It can therefore may be used in locations where potentially explosive atmospheres are present (classified zones 0, 20, 1, 21, 2, 22 according to European Directive 94/9/EC (ATEX)).

Zone installation also depends on barrier type:

Ex ia barrier zone 0; 20 ; 1; 21; 2; 22

Ex ib barrier zone 1; 21; 2; 22

NAM 05 is normally supplied with 2m bipolar cable that must be connected to the plant’s safety system through an intrinsic safety barrier.

Installation must be according to standard EN 60079-14.

ModelNAM 05
Storage temperatureFrom -40°C to +100°C
Nominal supply voltage8.2 V
Cable2 m in PVC
Degree of protectionIP 66/67
Rupture diskDCD, DIF, LPD, SCD, SCR, Y90, KRD
Explosion venting panelsPS/C, PS/R

Certifications

Quality certifications are a guarantee. DonadonSDD has obtained the following certifications.

DonadonSDD provides high-quality products that meet the safety requirements of the systems where they are installed. The organisation and procedures fully comply with the ISO 9001 standard to ensure the utmost quality for our products. Our quality system has also met the stringent requirements of the UNI EN 9100 standard concerning design, development, and manufacture of rupture discs for the aerospace industry.

DonadonSDD products – such as rupture discs, explosion venting panels, and rupture indicators – are certified in compliance with PED directive 2014/68/EU or ATEX directive 2014/34/EU. The rupture discs alone are manufactured, tested, and certified in compliance with ASME directive, Section VIII, Division 1 and carry the relative UD stamp. 

DonadonSDD is subject to inspections carried out by 3-A Sanitary Standard, Inc. (3-A SSI) so that our rupture discs can meet the highest sanitary standards.

Upon request, our clients can ask independent inspectors to certify single batches.

DOWNLOAD CERTIFICATIONS