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A rupture disc (burst) Pressure-effect acting at a rupture disc A rupture disc, also known as a pressure safety disc, burst disc, bursting disc, or burst diaphragm, is a non-reclosing pressure relief safety device that, in most uses, protects a pressure vessel, equipment or system from overpressurization or potentially damaging vacuum conditions.
There is also "an upstream connected frangible disc safety relief device" [5] located on the valve assembly which is also known as the "tri-dimensional burst disk". This burst disk protects the user against a situation where the pressure in the bottle would increase with exposure to heat during a fire.
The risk of this happening to a correctly rated disc, in good condition, on a correctly filled cylinder is very low. Burst disk over-pressure protection is specified in the CGA Standard S1.1. Standard for Pressure Relief Devices. [5] Bursting disc rupture pressure is generally rated at 85% to 100% of test pressure. [11]
More common pressure relief devices are a simple burst disc installed in the base of the valve between the cylinder and the valve seat. A burst disc is a small metal gasket engineered to rupture at a pre-determined pressure. Some burst discs are backed with a low-melting-point metal, so that the valve must be exposed to excessive heat before ...
An explosion vent or rupture panel [1] [2] is a safety device to protect equipment or buildings against excessive internal, explosion-incurred pressures, by means of pressure relief. An explosion vent will relieve pressure from the instant its opening (or activation) pressure p stat has been exceeded.
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Currently it is not commercially for sale and must be hand built by the hobbyist like most piston valves. [14] Alternate designs have also been used which use a sharp projectile to puncture the burst disk, like a mortar [15] or using a manual puncturing device to trigger failure of the disk. [16]
This page was last edited on 13 April 2007, at 14:01 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may ...
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