Oseco”s PROLP rupture disc operates in very low pressure vessels, where equipment operating costs are key considerations. It has a fully opening, perimeter-scored design, which utilizes Oseco”s unique computerized load-cell technology. The disc is suited for most gas, vapor, or liquid low pressure applications. Operating ratio is 95 percent. The disc protects the safety of plant personnel by relieving pressure before it reaches potentially dangerous proportions, reduces damage to equipment, and minimizes process downtime. The disc also provides environmental protection by preventing fugitive emissions to the atmosphere when used as relief valve isolation.