Sanitary Pressure Relief
Pure-Gard is an innovative, sanitary pressure relief solution specifically designed for applications where cleanability is of paramount importance. Pure-Gard specifically addresses the challenges of complex manufacturing environments including pharmaceutical, biopharmaceutical and food.
Unlike traditional sanitary rupture discs that rely on an integral gasket to provide a seal, the new design is a one-piece cartridge with the rupture disc electron-beam welded between two ferrules.
This cleanable, robust welded solution offers a number of benefits over traditional solutions:
Pure-Gard is independent of the gasket, meaning gaskets may be changed yearly or as needed without having to replace the disc. Pure-Gard comes with a three-year warranty, allowing up to a 67% reduction in discs purchased over the three-year period.
The one-piece design protects the rupture disc, avoiding the risk of damage at the point of installation. Pure-Gard’s structural stability also means its performance is unaffected by vent-side pipework loads. This helps reduce unwanted disc activations, with a corresponding reduction in stock and maintenance costs.
Pure-Gard is designed for use with our the Elfab Vent-Tel burst detection system. This is a reusable, non-invasive solution mounted directly to the Tri-Clamp or sanitary fitting. It allows quick, simple disc inspection with no need for downtime to carry out the required checks.
Pure-Gard meets industry expectations for cleanability with its crevice and dimple free design. Our rigorous testing program includes dye penetrate testing and helium leak testing.
The Elfab Pure-Gard is manufactured at Elfab’s manufacturing facility in North Shields, Tyne & Wear, UK.
Bio processes normally require constant temperature. Biological fermentation is a major source of heat, therefore in most cases, bioreactors need refrigeration. Should refrigeration fail, the heat generated could create an unsafe operating condition and require over pressure protection.
Rupture discs are commonly used as the primary relief device on Pharmaceutical tanks. Rupture discs will need to withstand full vacuum, and are generally rated at approximately 45 psig. Oseco's Pro-S is an excellent choice for this application, and fits directly into existing sanitary ferrule connections.