| 摘要 |
<p>A metering valve for the delivery of pasty mediums consists essentially of a valve housing (2) with an inlet opening (3) and an outlet opening (4) and of a flow restrictor (5, 15) movably arranged in the valve housing (2). The flow restrictor (5, 15) is provided with one or more holes (6, 7, 16, 17) for forming a connection (V) between the inlet opening (3) and the outlet opening (4). The hole (6) can be intermittently placed between the inlet opening (3) and the outlet opening (4), so that the effective cross-section between the inlet opening (3) and the outlet opening (4) is reduced. <IMAGE></p> |
