LPD rupture disc for low burst pressure

12.02.2014

Donadon SDD LPD rupture disc is designed to burst at very low pressure like 5 mbar, it may be installed directly between flanges avoiding the requirement for holder.

Donadon SDD LPD rupture disc is designed to burst at very low pressure like 5 mbar – 50 mm water column.These rupture discs are suitable for the protection of biogas digesters, tanks, reservoirs, silos, and other lowpressure equipment. Donadon LPD rupture discs are also a simple, reliable, accurate, and cost-effective solution for implosion (vacuum) protection of plants.

Donadon SDD model LPD discs offer non-fragmenting opening and avoid product contamination, it may be installed directly between flanges avoiding the requirement for holders. The disc will attain full relief within 1 second from the start of rupture and allows for instantaneous system relief at ultra-low pressures.

Donadon LPD rupture disc is a composite conventional disc formed by four parts:
 A slotted, perforated metal part
 A seal membrane (usually in PTFE)
 A protection section
 A calibration ring with blades to improve membrane opening

LPD discs can be provided also with:
 Dual protection option in order to protect both from overpressure and from under-pressure
 Vacuum / Backpressure support
 Burst detector

For detecting rupture of such low-pressure discs Donadon SDD has developed an optical rupture indicator (OFI). The Burst detector, ATEX approved, giving immediate indication of burst occurrence. www.donadonsdd.com