High-performance rupture disc for use
with duplex holders
Opti-Gard (High-Strength Magnet) is a technically advanced reverse-acting rupture disc specifically designed for use with 22cr and 25cr duplex holders.
The high-strength magnet means you can still use our unique, non-invasive burst detection systems Flo-Tel and Flo-Tel XD.
Standard rupture discs will not allow this, as the duplex stainless steel is magnetic and prevents the detector from functioning correctly. Elfab’s specially developed high-strength magnet overcomes this problem and enables accurate signalling up to 140°C.
Technical downloads (DSC OPM)
| Technical information | |
| Installation guide |
Key features
- For use with 22cr and 25cr duplex holders
- High-strength magnet ensures compatibility with Flo-Tel and Flo-Tel XD up to 140°C
- Industry-leading 3% tolerance
- Manufactured to ISO4126 or ASME VIII (UD stamp available)
- Up to 97% operating ratio possible
- Optional fluoropolymer liner on the process and/or vacuum side
- Withstands full vacuum and high levels of back pressure without additional vacuum support. This ensures maximum free-flow area on burst
