Elfab BioFlat Composite

Elfab BioFlat Composite

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An economic solution for very low pressure aseptic and sanitary (hygienic) applications

This forward acting rupture disc has a composite design with a unique tri-membrane construction. This non-fragmenting disc offers enhanced protection, reliability and leak tightness for very low burst pressure applications. The ferrule allows installation within most sanitary clamps and fittings, including tri-clamps and PED connection types.

We can also manufacture the disc with various slotting arrangements to meet customers’ specific application requirements.

The BioFlat Composite disc is fitted with a Flo-Tel actuator as standard and is compatible with our sanitary Vent-Tel burst detection system.

Key features

  • Flat composite design for low burst pressures
  • Sealing membrane along with a choice of metals
  • Up to 40% operating ratio
  • Non-fragmenting design
  • Manufactured to ISO4126 or ASME VIII (UD stamp available)
  • Full vacuum capability when manufactured with opening or non-opening vacuum support
  • Suitable for liquid, gas and vapour applications
  • Compatible with the reusable Vent-Tel burst detection system
  • Meets FDA approvals
  • Ideal for CIP and SIP applications


Technical downloads (DSC-BGF)

Technical information


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