Oseco's POSIPRO-S is a bidirectional rupture disc that provides both positive and vacuum pressure protection for sanitary applications.  The POSIPRO-S is designed for sanitary applications requiring extremely low positive pressure relief while providing vacuum protection up to 100 psig.

Flow Direction


Vacuum Burst Pressure Range (psig) Manufacturing Range % Vacuum Burst Tolerance Fragmentation
4 - 100 Same as Burst Tolerance +-5% > 40 PSIG < +-2% May Fragment

Positive Burst Pressure Range (W.C.)

  Positive Burst Tolerance  
1 - 30 inches W.C.  

6" W.C. Min, 6" W.C. Max