低温液体管理是当前和未来空间项目的基础。这些推进液在发射时、在轨道仓库中以及在月球表面的可用性，对于未来人类探索火星的任务至关重要。低温液体存在于加压燃料箱和推进剂子系统中。保持这些燃料的安全运行压力是至关重要的，超压事件可能导致航天器的灾难性损失。关于低温燃料管理的另一个问题是一个叫做 "沸腾 "的过程。沸腾是指在长期的空间任务应用中，低温推进剂储存系统的产品损失。
在商品爆破片设计中，膜片在承受超过其极限的压力时就会破裂。这种 "易碎 "元件对这些类型的爆破片的能力有深刻的影响。冲击载荷、发射时的振动、中止程序、运行中的沸腾循环，以及长期服务的要求，使得依赖一个薄薄的单一膜片作为过压解决方案充其量是有点令人不安的。
Whether working on terrestrial, in-atmosphere, or in-space applications, the impact of temperature must be factored into overpressure protection. Complications occur when specifying the specific rupture temperature for conventional frangible burst disc pressure.
Frangible disc rupture pressure is solely dependent on the physical strength of the thin diaphragm. These commodity discs risk high variance in specified burst pressure; lower temperature risks higher than rated burst pressure, higher temperature risks lower than rated burst pressure.
Obscuring this critical specification further, designers must make their best judgment as to the conditions that most likely risk an overpressure event.
This can be extremely difficult to predict in cases where runaway chemical reactions or unexpected component failures occur. (e.g. valves, pumps, switches, etc.)
Frangible discs limit system safety and limit the choice as to where the disc can be physically placed within the system. Due to their thermal sensitivity, frangible designs must be placed very close to where the expected upset conditions occur. Any locational offset can result in heat transfer and negatively impact frangible burst pressure.
There are reports that a 100° F difference in temperature yields a 20% offset in rupture pressure for conventional frangible designs.
In contrast, advanced SAFE-SHEAR™ burst disc designs are immune to many critical application parameters that destroy conventional/frangible rupture discs. These advanced burst discs can withstand millions of cycles of shock, vibration, thermal cycling, and sloshing up to 95% of rupture pressure. Our burst disc capabilities allow cryogenic fluid designers to optimize cylinder designs for high pressures, thereby ensuring adequate propellant and oxidizer are available to activate pressure-dependent systems. Our advanced burst disc accomplishes this while preventing product loss. Our leakage rates are less than 10-8 standard cubic centimeters per second of GHe. (sccs)