Difference between revisions of "Triggered burst disk"
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The design has the advantages of quick opening and full flow of a burst disk, and with the reliability and repeatability of normal [[pilot valve]]s. It has the other disadvantages of a burst disk system, as well as higher consumption of burst disks. | The design has the advantages of quick opening and full flow of a burst disk, and with the reliability and repeatability of normal [[pilot valve]]s. It has the other disadvantages of a burst disk system, as well as higher consumption of burst disks. | ||
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Revision as of 14:42, 24 October 2005
A triggered burst disk system consists of two burst disks mounted between the chamber and barrel of a pneumatic cannon, with a trigger chamber in between and a trigger valve that either dumps said chamber to the atmosphere, or connects it to the main chamber.
The burst disks must be dimensioned to break somewhere between half and full chamber pressure. The trigger chamber is filled to half the chamber pressure, and then the chamber is filled to full pressure. When the trigger valve is opened, one of the disks is subjected to the full chamber pressure and ruptures, in turn overloading and rupturing the second burst disk.
The design has the advantages of quick opening and full flow of a burst disk, and with the reliability and repeatability of normal pilot valves. It has the other disadvantages of a burst disk system, as well as higher consumption of burst disks.
