Patent ID: 9074690
Filing Date: 2015-07-07
Classification: F16K,Y10T

Abstract:
1. A shut-off valve for the plumbing sector for shutting off a line through which a fluid can flow, comprising: a housing comprising at least two connecting pieces, wherein a flow path is defined from one of the connecting pieces through the housing to another of the connecting pieces; a shut-off body disposed rotatably in the housing, wherein the shut-off body comprises only a single shut-off section that is constituted as a portion of a sphere, wherein the shut-off body is movable between a closed position in which the shut-off section completely blocks the flow path to only one of the connecting pieces and an open position in which the shut-off section does not block the flow path; a switching shaft rotatably mounted in the housing, wherein the switching shaft is constituted as a hollow shaft and is connected in a rotationally fixed manner at one end to the shut-off body; and a hollow spindle mounted in the switching shaft, wherein the hollow spindle is provided with an inlet opening at an end facing the shut-off body, an outlet opening at an end facing away from the shut-off body and a drainage channel that leads from the inlet opening to the outlet opening, wherein the hollow spindle is displaceable relative to the switching shaft from a first position, in which the drainage channel is in fluid communication with the flow path via the inlet opening, to a second position, in which the drainage channel is not in fluid communication with the flow path and the inlet opening is blocked, and wherein the hollow spindle is formed by at least two spindle parts connected rotatably to one another.