Shutoff valve with spring-loaded valve disk
AssigneeGestra GmbH
InventorJurgen Lutz
Life of this patent
Estimating the term…
Abstract
A shutoff valve with a spring-loaded valve disk. The spring, designed as a tension or pressure spring is arranged outside of the valve housing, where a pivoting arm is attached to the actuating shaft. One end of the arm remote from the shaft is engaged by the spring. The other end of the spring is supported on an abutment mounted on the outside of the valve housing. The driver and the abutment are arranged in such a way that in the closed position, an imaginary connection line extends between the abutment and the driver with a lateral displacement transverse to the longitudinal shaft axis extending in the direction of closing the valve. The operational state of the spring is always visible so that a damage or defect can be readily identified.
Claims10
A shutoff valve including a valve housing having an end with a flange for connection to a container and a wall defining a flow-through duct with a valve seat comprising:
- a pivoting valve disk cooperating with the valve seat to open and shut the shutoff valve;
- an actuating shaft located close to said flange with a longitudinal axis extending through the wall of the valve housing and being connected to said valve disk within the valve housing;
- a pivoting arm mounted on said actuating shaft outside the valve housing and extending transversely to the longitudinal axis, said pivoting arm having an end remote from said actuating shaft with a driver disposed at said end;
- a stationary abutment formed on an outer side of the valve housing close to said flange;
- a spring disposed laterally adjacent said flange for rotating said actuating shaft connected to said stationary abutment and said driver outside the valve housing along a linear direction of movement that extends transverse to the longitudinal axis;
- and
- actuating means disposed outside of the valve housing and engaging said actuating shaft for pivotal movement about the longitudinal axis;
- wherein said driver and said abutment are positioned so that when the valve is shut, a connecting line extends between said abutment and said driver which is laterally displaced from the longitudinal axis in the direction of shutting the valve.
Dependencies are inferred from the claim text.