| 摘要 |
A stretch valve (1) which achieves precise control of fluid flow rates through the use of a cylindrical fluid elastomeric valve element (2). This elastomer element (2) is installed within the cylindrical flow path (20) of a valve body. The flow path (20) has a diameter that is slightly smaller than that of the elastomer element (2), which is therefore constrained within the flow path. Longitudinal stretching of the elastomer element causes the diameter of the elastomer element to decrease. As a result, a flow path is opened. The further elastomer element is stretched, the larger is the fluid path that is created. Therefore, precise control of the fluid flow rate is made possible. |
