| 摘要 |
Diaphragm valve (1) comprising a housing upper part (2), which receives an actuating device (4) for actuating the valve (1), and a housing lower part (3), which has a receiving region (9) for receiving a diaphragm (11), wherein in the housing lower part (3) below the diaphragm (11) a central region forming a flow channel (17) is designed, wherein the cross-sectional surface of the flow channel (17) in the central region (51) of the housing lower part (3) is constant when the valve (1) is in the open state. |
