BS&B Bio-Saf sanitary reverse buckling disks

Bio-Saf brings the full reverse buckling advantage to hygienic processes: a 90 % operating ratio, full vacuum resistance without a support and long life under the pressure cycling of CIP and SIP. Every disk is non-fragmenting and can be installed under a sanitary safety valve.

Model	Sizes	Burst range	Notes
GCR series	DN40 – DN100	0.7 – 20.7 bar	Gasketed disk in the GR-C ferrule; variants with sensor (‑S), Monel dome (‑M), EPDM (‑E) or no outlet ferrule
GCR-SW	DN40 – DN100	0.7 – 20.7 bar	Single-piece assembly, disk welded between two clamp ferrules
GFR-S	DN25 – DN80	0.8 – 21 bar	Disk in GR-C holder for smaller lines
GFR-SW	DN25 – DN80	0.8 – 21 bar	Welded single-piece version of the GFR-S
SLP-S	DN40 – DN80	0.3 – 4.8 bar	Low pressure sanitary reverse buckling disk
GLR-S	DN40	12 – 24 bar	High pressure, single size
GLP-S	DN25 – DN80	0.5 – 21 bar	Uses the LP-C holder

The welded -SW assemblies are a favourite for validated processes: the disk cannot be handled, dropped or mounted upside down, and the whole unit is swapped at each change-out. Gasket materials are chosen for the medium and the cleaning regime.

Selection data we need

Ferrule size and standard, burst pressure and temperature, operating pressure, SIP temperature and cycle count, medium, gasket preference, and whether a burst sensor is required.