| 摘要 |
A ball valve has a first half and second half coupled to form a valve body. The first half has an outlet passage, a single ball seat at an opening of the outlet, a first aperture receiving a first stem, and a first flange oriented about 45 degrees from the outlet. The second half has an inlet passage, a second aperture receiving a second stem, and a second flange oriented about 45 degrees from the inlet. A half ball is coupled to a first stem and a second stem disposed in the first and second apertures such that the half ball rotates about an axis of the first and second stems. The half ball rotates between a closed position in which a sealing side of the half ball is sealed against the single ball seat to prevent fluid flow, and an open position that permits fluid flow.
|
