Burst indicator

, a European supplier of pressure-relief systems, has added detection to each of its main product lines, giving end-users immediate indication that a bursting device has operated.

The company’s ATEX-approved, non-invasive and reusable Integral Flo-Tel sensor is now fitted as standard to Opti-Gard, Safe-Gard, Posi-Gard, Vac-Gard, Arma-Gard, Bursting Panels, and both Flat and Domed Composite Discs. Elfab claims to be the first manufacturer to offer this service as standard.

Unlike most alarm systems, which are activated by the flow created after a bursting disc has operated, Integral Flo-Tel is installed on the vent side of bursting discs and is activated by the operation of the disc itself. During operation, a magnet arcs away from its rest position, removing the magnetic field from the sensor, and comes to rest in a position which no longer influences the sensor. This causes the sensor to switch to its fail-safe condition of an open circuit and a latched alarm condition is the result.