NTOS Corporation

Operating Principle	A thin disk made of metal, graphite, or composite material ruptures instantly at the specified burst pressure, operating by material strength rather than springs or mechanical mechanisms.
Structural Types	Domed types (Forward Acting / Reverse Acting) Graphite disks, composite disks Used with a holder to induce rupture in a specific direction
Response Time & Accuracy	Near-instant opening upon overpressure (milliseconds range) Burst tolerance (±%) control; design considerations for temperature and vibration
Applicable Standards	ISO 4126, ASME Section VIII, API 520 / 521 Integrated with design pressure, set pressure, and piping sizing for tanks and pressure vessels