Bio-Gard (DSC-BGD)

Bio-Gard (DSC-BGD)

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Bio-Gard; a low pressure rupture disc for protection in aseptic and hygienic plants

A rupture disc specifically designed for protection in aseptic and hygienic plants.

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



Contact Elfab about this product
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