Valve device
First Claim
1. A valve device comprising a valve housing having inlet and outlet end pieces for mounting of the valve in a pipeline, and a valve member in the housing movable between open and closed positions for opening and closing of the valve, said valve member being mounted in an assembly which can be removed as a unit from the valve housing, said assembly comprising a cover adapted to bs fasten to the valve housing, a rod or spindle for moving the valve member between open and closed positions, a retainer in which the valve member is movable, gasket means carried by the retainer and arranged to seal both against the movable valve member and against fixed seats in the valve housing, said valve housing having a transverse opening adapted to receiver the assembly and including means for locking the cover in its mounted position and permitting rectilinear movement of the assembly into and out of the transverse opening, said gasket means being movable between retracted and extended positions towards and away from the housing seats relative to the retainer while supported on the retainer, spring means for urging said gasket means axially towards the housing seats in a sealing relationship when the valve device is assembled, locking means for temporarily locking said gasket means in a retracted position on the retainer until said valve device is assembled, said locking means comprising movable locking rods arranged to lock the gasket means in retracted positions until the valve device is assembled, said locking rods extending parallel to the direction of insertion of the retainer into the valve housing during assembly of the valve device.
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Accused Products
Abstract
A valve device comprising a valve housing having inlet and outlet end pieces for mounting of the valve in a pipeline, and a valve member being moveable for opening and closing of the valve. The valve member is mounted in a unit which can be removed from the valve housing and which consists of a cover that can be sealingly fastened to the valve housing in which cover is mounted a rod or spindle for movement of the valve member, a retainer in which the valve member is moveable and which carries gaskets for sealing against seats in the valve housing, respectively, and the valve housing has a transverse opening and is equipped with an arrangement for locking the cover in its mounted position, in order to permit rectilinear movement of the unit into and out of the transverse opening. The gaskets can be mutually shifted axially in the retainer whereby springs are provided for urging the gaskets axially towards the seats in order to cause sealing in the assembled state, and the retainer comprises assemblies for locking the gaskets in an axially retracted position in the retainer.
21 Citations
9 Claims
- 1. A valve device comprising a valve housing having inlet and outlet end pieces for mounting of the valve in a pipeline, and a valve member in the housing movable between open and closed positions for opening and closing of the valve, said valve member being mounted in an assembly which can be removed as a unit from the valve housing, said assembly comprising a cover adapted to bs fasten to the valve housing, a rod or spindle for moving the valve member between open and closed positions, a retainer in which the valve member is movable, gasket means carried by the retainer and arranged to seal both against the movable valve member and against fixed seats in the valve housing, said valve housing having a transverse opening adapted to receiver the assembly and including means for locking the cover in its mounted position and permitting rectilinear movement of the assembly into and out of the transverse opening, said gasket means being movable between retracted and extended positions towards and away from the housing seats relative to the retainer while supported on the retainer, spring means for urging said gasket means axially towards the housing seats in a sealing relationship when the valve device is assembled, locking means for temporarily locking said gasket means in a retracted position on the retainer until said valve device is assembled, said locking means comprising movable locking rods arranged to lock the gasket means in retracted positions until the valve device is assembled, said locking rods extending parallel to the direction of insertion of the retainer into the valve housing during assembly of the valve device.
Specification