| 摘要 |
Hydraulic valve with a valve chest (1) provided with a substantially cylindrical internal chamber (5) which may be closed by a valve disc (9) which with its conical rim (9') engages the facial rim of the internal chamber (5), an insert member (3) being arranged in a section of the internal chamber (5) and structured as a member of sprocket-like cross-section with circular gaps (3'') between teeth forming valve passages (4) with the internal wall of the chest, the valve disc stem (6) permeating the insert member (3) being a one-piece structure and provided with a safety nut (7).
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