| 摘要 |
<p>A valve assembly includes a base (10), a handle (18) and a spindle (14) connected to the handle (18) at one end and adapted at the opposite end for opening and closing the valve. The spindle (14) extends from the base (10) to the handle (18) and is adapted such that rotation thereof results in opening and closing of the valve respectively. The base (10) is provided with two or more first indication means (R,B,G) and the handle is provided with two or more second indication means (20,21,22;RR,BB,GG). At least one of the indication means on either or both of the base (10) and handle (18) is independently positionable on the base (10) or handle (18) relative to the other indication means and is alignable with a corresponding indication means on the handle or base respectively such that two or more respective predetermined degrees of rotation of the handle can be recorded.</p> |
