Abstract: A pressure relief wall assembly has a wall panel, one end of which is permanently secured to a frame. A plurality of elements secure a second end of the wall panel to the frame, and these elements fail when an excess pressure is applied to the wall panel. A retaining member is provided so that, when excess pressure is applied to one of the two sides of the wall panel, the second end of the wall panel is retained until a further increase of pressure occurs. The retaining member then releases the second end of the wall panel. This enables the wall assembly to be designed for different release pressures in blow-in and blow-out modes, so that no excess load is applied to a support frame in either mode.

Abstract: A pressure relief wall assembly has a liner panel and first and second exterior panels. A first portion or end of the liner panel is secured to one part of the frame. A second portion or end of the liner panel is releasably fastened to another part of the frame, by a plurality of first elements, which elements fail when an excess pressure is applied to either side of the wall assembly. A first end or portion of the first exterior panel is secured to the one part of the frame, and a second end portion of the first exterior panel is secured to the liner panel, for example, at a location midway between the two parts of the frame. The second exterior panel has a first portion secured to the other part of the frame. A second, end portion of the second exterior panel is releasably fastened to the liner panel or to the first exterior panel by a plurality of second elements, which fail when excess pressure is applied to the assembly. In response to excess pressure, the first and second elements fail.