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Rupture Discs | Bio-Gard Sanitary

Supplier: Pressure and Safety Systems

Bio-Gard Sanitary Rupture Discs are specifically designed for protection in aseptic and hygienic plants.

Price Guide: POA

Bio-Gard is a low-pressure peripherally scored reverse-acting rupture disc designed with a smooth uninterrupted surface finish to meet FDA approvals for hygienic and aseptic installations.

  • Suitable for use with tr-clamps / ferrules
  • Non-fragmenting rupture disc design
  • No vacuum support required
  • Ideal for CIP and SIP applications


  • Size Range 25mm to 50mm (1" to 2")
  • Burst Pressure Range 2 barg to 10 barg (29 Psig to 145 Psig)
  • Temperature Range See product downloads
  • Maximum Operating Ratio 90% of minimum burst pressure (81% of nominal burst pressure)
  • Fragmentation on Burst None fragmenting design
  • Relief Valve Isolation Excellent
  • Vacuum Service Full Vacuum
  • Fluid Compatibility Liquid, Gas or Vapour
  • KR Values N/A
  • Torque Sensitive No
  • Cycle Life Excellent
  • Material Range Stainless Steel as Standard. Others Available
  • Reversal Ratio <1.5
  • Damage Ratio <1.5 (Fail Safe)
  • Leak Tightness Excellent
  • Performance Tolerance +/- 10% (zero manufacturing design range)
  • Protective Linings N/A
  • Disc Surface Finish Typical 0.4µ Ra or better