| 摘要 |
An inline control valve (20) having a valve stem (24) which extends through the valve body and is perpendicular to the valve bore sleeve (36). The valve stem has a flat stem base (26) located within the valve body. The stem base is located perpendicular to the stem and it has an eccentric pin (28) on the opposite side from stem. The flat stem base and the pin are in constant contact with a valve trim sleeve (30) which has a flat mating surface with a slot to receive the pin. The valve trim sleeve is located around a bore sleeve in the valve body. The valve trim sleeve controls the flow through the valve by blocking or opening flow orifices (42) which are located on the end of the bore sleeve. When the valve stem is rotated, the stem base rotates the eccentric pin. The pin forces the trim sleeve to slide along the bore sleeve and open or close the flow orifices. |
