发明名称 |
TERUGSLAGKLEPAFSLUITER MET DEMPING. |
摘要 |
<p>An improved check valve has an operating chamber with a disc disposed therein which is capable of axial movement from a closed position against a valve seat to an opened position to prevent feedwater from flowing from the normal outlet to the normal inlet of the valve. A cylindrical member extends upwardly from the disc through a fixedly mounted baffle plate which generally separates an upper portion of the operating chamber from the lower portion. A piston is mounted on an extended end of the cylindrical member to generally define a dashpot chamber between the piston and the baffle plate. The dashpot chamber entraps a greater volume of feedwater when the valve is open than when closed to limit valve closure rate by limiting the rate at which feedwater leaves the dashpot chamber during closure.</p> |
申请公布号 |
NL7611350(A) |
申请公布日期 |
1977.04.18 |
申请号 |
NL19760011350 |
申请日期 |
1976.10.14 |
申请人 |
ROCKWELL INTERNATIONAL CORPORATION TE PITTSBURGH, PENNSYLVANIE, VER.ST.V.AM. |
发明人 |
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分类号 |
F16K15/00;F16K15/06;(IPC1-7):16K15/00;16K15/06 |
主分类号 |
F16K15/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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