This company has recently introduced its SCD (forward acting) and SCR (reverse buckling) rupture discs with micro-scored calibration sections. The patent-pending technology makes the discs very flexible so that scoring in six or more sections is possible instead of the usual four. This allows a better opening of the disc, which reduces the risk of petal detachment, even at higher pressures, says the manufacturer. The discs react to excessive pressure in a few milliseconds without fragmentation, have good resistance to corrosion and are especially suitable for protection of relief valves. The company has also recently tested new materials for rupture discs, such as titanium and tantalum. — Donadon SDD Srl., Corbetta, Milan, Italy
Micro-scored rupture discs offer added benefits
| By Chemical Engineering