Technical data
The Z-VAC bursting disc was specially developed for applications requiring protection against both overpressure and vacuum. Z-VAC bursting discs relieve extremely low pressures in the vacuum direction (from 2.5mbar). The Z-POS rupture disc works on the same principle, but relieves only low pressures in the overpressure direction.
Both designs consist of a perforated metallic diaphragm, a fluoropolymer sealing film, and a fluoropolymer or stainless steel control clip.
The Z-VAC can be loaded up to 90% of the minimum set pressure in the vacuum direction and 80% of the nominal positive set pressure, the Z-POS up to 50% of the minimum burst pressure in the overpressure direction. Both versions are inserted into separate rupture disc holders for standard flanges.
- Nominal size from DN50 (2") to DN300 (12")
- Bursting tolerance Z-VAC in overpressure direction +/-5% (below 2,7bar-ü +/- 0,14bar), in under pressure direction +/- 7,5mbar
- Bursting tolerance Z-POS +/- 7,5mbar
- Max. Temperature range up to 260°C
- Optional integrated burst signal generator
