Improvements in and relating to rupture disc assemblies.

摘要

A rupture disc assembly comprises a holder member (4) of a substantially incomprenssible material one end face of which is recessed (8) to receive therein a rupture disc member including a disc portion (2) of a frangible material such as resin-impregnated graphite. When located in position within the recessed holder member (4) the outer surface of the disc portion (2) of the rupture disc member is substantially co-planar with the one end face of the holder member whereby, an clamping the assembly in position on a system to be monitored, the clamping forces on the assembly are applied to the substantially incompressible material of the holder member (4) and not to the frangible material of the disc portion (2).