Pipe bend for joining two sections of pipeline has surfaces of valve plate sides parallel to pipe axis of first sector or perpendicular to it

摘要

The pipe bend (8) has a first pipe sector (10) and a second pipe sector (12), connected by an arc-shaped sector (14). The first sector contains valve plate (16), including two semicircular sides (18, 20), turning about a bolt (22), passing through the diameter of the first pipe sector. The valve's side surfaces are parallel to the pipe axis of the first pipe sector in the open position, and perpendicular to this pipe axis in the closed position.