| 摘要 |
The invention relates to a volumetric metering valve for liquid and viscous substances, comprising a valve body (10) and a valve cylinder (12) in which a piston is displaceably mounted. A driving piston (14) which is in fluid communication with a driving medium and which is displaceable in the valve cylinder (14) actuates a metering piston (16) that is connected to the driving piston, the path of movement of the driving piston (14) and/or the metering piston (16) in the valve cylinder (12) being delimited by a movable stop (18). |
