Frequently Asked Questions
What is a Rupture Disc?
A rupture disc is a differential pressure relief device used for pressure relief in overpressure protection applications as well as pressure isolation and control applications. Rupture discs are thin, domed, non-re-closable devices engineered to produce a leak-tight seal until called upon to “burst” at predetermined PSIG to relieve pressure, often saving the facility and its operators from catastrophe.
What is a Forward-Acting Rupture Disc?
Concave side of the dome faces the process media and functions when the weakest portion of the disc exceeds its tensile strength. Often has a finite fatigue life at higher operating ratios because the stresses are tensile in nature. Explore Fike’s forward-acting rupture discs.
What is a Reverse-Acting Rupture Disc?
Convex side of dome faces the process media and functions when the pressure creates an instability in the dome, resulting in buckling of the dome. Often has a longer life cycle that forward-acting designs because they are compressive and do not promote crack propagation. Explore Fike’s reverse-acting rupture discs.
What is a Rupture Disc Device?
A device containing a rupture disc and rupture disc holder that ruptures when the static differential pressure between the upstream and downstream side of the disc reaches a predetermined value.
What is a Rupture Disc Holder?
The structure that clamps a rupture disc into position. Types of rupture disc holders include bolted type, screw type, union type, pretorqueable, double-disc assembly and viscous tee. Explore Fike’s rupture disc holders.
Download an informative white paper about Safety Rupture Discs.