| 摘要 |
<p>A valve filter is provided particularly for a balanced pressure valve and provides a means of preventing particles passing through the balance holes of the valve plug. The valve comprises a valve housing and a valve plug movable in the housing to open and close the valve, the valve plug containing at least one balance hole, the balance hole defining a fluid communication channel through the valve plug, the fluid communication channel being provided with a filter, the filter comprising a body member and a plurality of elements, each element having a first end and a second end and being fixed at its first end to the body member and being free at its second end, whereby the elements can deflect under pressure.</p> |
