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Rupture disc pressure monitoring

25 January 2013

In the chemical and petrochemical industries - in particular on classified SEVESO II plants - vessels, tanks and reactors are normally equipped with protection devices consisting of safety valves with rupture discs to av

In the chemical and petrochemical industries - in particular on classified SEVESO II plants - vessels, tanks and reactors are normally equipped with protection devices consisting of safety valves with rupture discs to avoid damage due to high and low pressure shocks.

The condition of the rupture disc is often monitored with glycerin manometers installed between the safety valve and the disc.However, according to VEGA, there are issues as these devices are not able to transmit measuring information and are often not SIL qualified. They often have limited resolution in low pressure ranges, which doesn't allow for a very precise set point.

To resolve these issues, the implementation of a SMART pressure sensor with ceramic cell enables the measurement of very small pressure variations and detection of the slightest leak to prevent fissuring of the rupture disc.
 
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