| 摘要 |
<p>Double regulating balancing valve (10), comprising a valve housing (11) providing a valve seat (18); a valve plunger (19) acting together with the valve seat; a valve insert comprising a spring (24), whereby a spring force provided by said spring (24) acts in such a way on a valve stem (25) to which the valve plunger (19) is mounted that the spring force tends to lift up the valve plunger from the valve seat; a hand wheel (35) acting together with a force transmitting screw (36), whereby the force transmitting screw acts in such a way on the valve stem (25) that the force transmitting screw compresses the spring (24) against the spring force depending on the position of the hand wheel (35); a presetting screw (39) providing a stop for the force transmitting screw (36) in such a way that the position of the presetting screw limits the movement of the force transmitting screw (36) in opening direction of the valve; whereby the valve stem (25) carries a magnetic element (57), and whereby a magnetic sensor is mountable to a sensor socket (59) so that the magnetic sensor can detect the position of the magnetic element (57) attached to said said valve stem (25) and thereby the position of the valve stem (25) and thereby the position of the valve plunger (19).</p> |
