Rupturplade

Rupturplade, or rupture plate, is a safety device used to protect pressure-bound equipment from overpressure by bursting at a predetermined pressure. It consists of a thin metal plate designed to fail along a controlled path when the process pressure exceeds the set point. The plate may be flat or curved and is often scored or pre-formed to control the burst strength. In operation, the rupture plate is installed in a housing or between flanges to isolate the process until it ruptures, at which point the vented contents are released to a safe location.

Design and materials: Common materials include stainless steel, carbon steel, and various alloys chosen for compatibility with the process fluid and temperature. The burst pressure is determined by plate thickness, geometry, and any scoring or pre-formed features. Some designs are single-use, while others are paired with a reusable component for reset after inspection.

Installation and systems: Rupturplader are used as primary relief devices in small-diameter lines or in pilot relief zones, and in chemical processing, petroleum refining, and power generation. They are often installed with an appropriate vent system and may be monitored by instrumentation to confirm venting and integrity.

Standards and testing: Production follows industry standards for pressure-relief devices, with burst testing performed under hydrostatic or equivalent conditions to verify the set point and plate integrity. Documentation typically includes material certificates and traceability.

Advantages and limitations: Benefits include simple construction, fast response, and relatively low cost. Limitations include single-use operation, potential fragmentation on rupture, and the need for immediate replacement after activation.

History: The concept emerged in the early 20th century alongside innovations in predictable relief mechanisms for pressure vessels and piping systems.