burst disk


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burst disk

[′bərst ‚disk]
(aerospace engineering)
A diaphragm designed to burst at a predetermined pressure differential; sometimes used as a valve, for example, in a liquid-propellant line in a rocket. Also known as rupture disk.
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The PFM line is being implemented on all units to include the internal burst disk component.
The TRW heated gas inflator's simple design -- which reduces part count by as much as 50 to 80 percent compared to other inflators -- includes three major elements: a lightweight aluminum pressure vessel (inflator body), an end plug with an integral burst disk, and a pyrotechnic igniter assembly.
The burst disk withstands a maximum pressure of 10 MPa ( | 100 atm).