| 摘要 |
A ball valve assembly (10) provides a primary flow path (90) and a secondary flow path (92), where the primary flow path is established by moving the valve into a defined first position and the secondary flow path is established by moving the valve into a defined second position. The secondary flow path substantially restricts fluid flow as compared to the primary flow path and may be regarded as a trickle flow path. In a non-limiting example, the ball valve assembly is used on a water service line and is operated by a utility company. The valve is placed in its first position by authorized personnel, to provide normal, full-flow water service to a residence or other structure, and is placed in its second position, to provide restricted, low-flow water service to the structure. |
