Inverted rupture disc SIGMA™

stainless steel

The Sigma EXL™ Reverse Buckling Rupture Disk (Bursting Disc) has been developed to provide the highest operating pressure capability available from a Rupture Disk (Bursting Disc) pressure relief device. Sigma EXL™ Rupture Disk (Bursting Disc) technology and the SRB-7RS™ Safety Head combine the accuracy and reliability of Reverse Buckling Disk technology with unique disk and safety head design features that enable the Sigma EXL™ disk to operate to 95% of the Marked Burst Pressure (100% of Minimum Burst Pressure according to CEN ISO 4126-2 standards). The Sigma EXL™ Rupture Disk (Bursting Disc) embraces SafT technology, Structural Apex Forming, the central feature on the disk dome enhancing burst pressure accuracy.