This video demonstrates what happens to a forward acting rupture disc as the pressure in a system approaches the disc's set burst pressure.
This video demonstrates what happens to a forward acting rupture disc as the pressure in a system approaches the disc's set burst pressure. It shows the importance of installing a rupture disc in the correct holder and in the correct orientation.
Note how the forward dome bulges and pulses as the pressure increases and the metal reaches the limit of its elasticity just before bursting open.