Low pressure venting panel

Static structures (e.g. – buildings) – Controlled by condition responsive means

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Details

52 98, 52208, 220 89A, 137 681, B65D 2500, F16K 1740

Patent

active

046127399

ABSTRACT:
A low pressure venting panel acts to safely vent a pressure vessel, such as a bag house, from overpressure conditions. The venting panel is particularly responsive and predictable at low pressures. The panel includes a thin rupture body with a central group of apertures and slit lines emanating from the apertures. A thin sealing membrane is bonded to one surface of the rupture body at least in the area of the slits. The characteristics of the sealing membrane enable the membrane to resist expansion in the area of the slits when pressure is applied to the rupture body, thereby resisting rupture of the membrane up to the design rupture limit of the venting panel. Various aperture patterns in the center of the rupture body are provided to facilitate predictable opening. The slits are divided into segments connected by bridges to help prevent the slits from separating and the sealing membrane from creeping through the slits prior to rupture. Protective strips adjacent the slits are positioned between the rupture body and the sealing membrane to reduce creep of the membrane through the slits prior to rupture. A vacuum support grid is provided for the panel to support the sealing membrane against a vacuum acting thereon opposite the rupture body.

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