Abstract: A spring-driven guided check valve which eliminates fluttering of the disc as it moves between the open and closed position against a seat. A disc has an integrated guide which slides against a sleeve inside the body of the valve. This configuration only allows linear movement of the seat in a direction towards (and away) from an inlet face without changing the orientation of the disc. The disc is held in a constant orientation and thus cannot shift at an inclined attitude (flutter). Thus, once the valve closes and the disc makes contact with the seat, the entire disc would contact the entire seat at the same point in time because of the parallel orientation of the disc to the contacting surface of the seat.

Abstract: A spring-driven guided check valve which eliminates fluttering of the disc as it moves between the open and closed position against a seat. A disc has an integrated guide which slides against a sleeve inside the body of the valve. This configuration only allows linear movement of the seat in a direction towards (and away) from an inlet face without changing the orientation of the disc. The disc is held in a constant orientation and thus cannot shift at an inclined attitude (flutter). Thus, once the valve closes and the disc makes contact with the seat, the entire disc would contact the entire seat at the same point in time because of the parallel orientation of the disc to the contacting surface of the seat.