Non-reclosing pressure relief device for vacuum systems

Details Non-reclosing pressure relief device for vacuum systems Non-reclosing pressure relief device for vacuum systems

1990-11-13

1994-02-08

Rivell, John

Fluid handling

Destructible or deformable element controlled

Destructible element

220 893, F16K 1740

Patent

active

052841774

ABSTRACT:
A non-reclosing overpressure protection device such as a rupture disc provides a non-reclosing opening upon forcible contact with a knife blade. A bellows, having an inlet capable of being sealably connected to a source of pressure (the vacuum system) and an outlet containing the rupture disc, transmits the pressure in the system to the disc. The bellows maintains the disc away from the knife when the pressure is below an overpressure amount, and carries the disc to a position when the pressure is above an overpressure amount where the disc is ruptured by the knife.

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