| 摘要 |
The present invention relates to an improved safety pressure relief device of the type having a rupture disk supported between a pair of annular supporting members adapted to be clamped between a pair of conventional pipe flanges. The rupture disk includes an annular flat flange portion and each of the annular supporting members have annular flat portions to coact with and support the rupture disk. Means are provided attached to the supporting members for aligning the supporting members, centering the rupture disk therebetween and preventing the rupture disk from being installed improperly. One of the supporting members includes an annular spacing member attached to the outside periphery thereof so that when the safety pressure relief device is clamped between conventional pipe flanges, the device is automatically centered therein. |
