Patent ID: 11913561
Assignee: VOLKER WURZER
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. 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.