Shut-off-valve-utility
AssigneeASV Stubbe GmbH & Co. KG
InventorKarl-Horst Rasche
Life of this patent
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Abstract
A shut-off valve has a housing which is provided with a spindle bush. Located in the spindle bush is a movable spindle which is sealed with respect to the housing. The spindle is connected to a closure body disposed in the housing. The housing also has a recess, which extends around the spindle bush and is open to the interior of the housing. If the housing comes under internal pressure, the recess prevents corresponding deformation of the spindle bush. The latter can thus not become leaky under the action of the internal pressure.
Claims8
A shut-off valve including a housing of thermoplastic plastic material, which has an interior and a spindle bush extending out of the interior, a spindle, which is movably disposed in the spindle bush and is sealed with respect to the housing, and including a closure body, which is disposed in the interior of the housing and is connected to the spindle, wherein the housing has a recess, which extends around the spindle and extends into the body of the housing.
Dependencies are inferred from the claim text.