| 摘要 |
<p>A suction valve for a pressure pump includes an annular valve seat (4) defining a flow path and a closure member with an annular seating surface arranged to cooperate with that of the valve seat part. The seating surface (11) of the closure member (7) is formed at its periphery as a part- spherical surface and the valve seat (4) is formed as a part of a conical surface or has a convex curvature considered in cross-section, Fig. 3, (not shown). <IMAGE></p> |
