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7/13/2018

Auxiliary Equipment: Rupture Disc Can Be Alarmed

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Custom assemblies with pop-top burst indication and are designed for reliable, emergency relief of excess pressure in a system.

Dynisco, Franklin, Mass., expanded its rupture disc offerings at NPE2018 with the BP520. The Dynisco Model BP520 burst plugs are custom assemblies with pop-top burst indication and are designed for reliable, emergency relief of excess pressure in a system. The BP520 are installed on barrel bodies with hex ends, where the hex OD (across flats) is larger than the burst plug body. The metal retainer strap is held in place by the hex and the metal 'T' shaped cap is fastened to the other end of the strip. A 2-mm hole is drilled through the body and cap. A burst indicator wire is passed through the hole and when the disk ruptures, the T-cap “pops open” shearing off the BI wire and indicating a burst to the control system.

The BP520 can easily be configured to directly communicate and trigger an alarm with existing instrumentation, such as a process indicator, by being programed to alarm on sensor input signal break. Once the burst plug has ruptured, the pop top will break the wire causing the alarm to be triggered

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