| 摘要 |
<p>The invention relates to a handwheel (2) for a balancing valve (1) with a valve housing (7) having a top piece (5) and spindle (3), guided in the top piece and having a valve body (6), which is moved in relation to a seat (8), located in the valve housing between an inlet (10) and an outlet (11), a bottom part (14) of the handwheel being stationary in relation to the valve housing and an upper part (16) of the handwheel being rotatable in order to move the valve body to indicate full revolutions and parts of a revolution, using a full revolution wheel (15), an optical scale (61) being used to indicate a full revolution and an optical scale (38) to indicate parts of a revolution. According to the invention the upper part of the handwheel having a dowel (17) is rotation-proof and longitudinally displaceably connected to the spindle and the full revolution wheel (15) is with its spindle disposed at rights angles to the dowel (17) in a holder on the upper part of the interior side.</p> |
