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US 11,913,561 B2Granted
Shut-off valve
AssigneeVolker Wurzer
InventorsVolker Wurzer, Raphael Herbst
Life of this patent
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Abstract
The invention relates to a shut-off valve for pipes, having: a housing which forms a passage; a shut-off unit having a slide valve for opening and shutting off the passage; at least one first connection flange, which is arranged on the housing and is connected to the passage, for connection to a first pipe end; and at least one second connection flange, which is arranged on the housing and connected to the passage, for connection to a second pipe end.
Claims9
A shut-off valve for pipes, comprising
- a housing in which a passage is formed,
- a shut-off unit comprising a slide valve for opening and shutting off the passage,
- at least one first connection flange which is arranged on the housing and connected to the passage, for connection to a first pipe end, and
- at least one second connection flange which is arranged on the housing and connected to the passage for connection to a second pipe end, wherein
- the connection flanges are fastened to the housing by releasable screw connections or welded connections, and the connection flanges comprise weld surfaces for weldable connection to the pipe ends;
- wherein the slide valve is contacted by replaceable seat bushings when shutting off the passage;
- wherein the connection flanges rest on the replaceable seat bushings that protrude into the housing;
- wherein the connecting flanges are fastened to the housing by screw bolts extending through the housing;
- wherein the seat bushings resting on the connecting flanges are fixed and secured in the housing by screwing the connecting flanges to the housing.
6 more elements
Dependencies are inferred from the claim text.