发明名称 |
APPARATUS FOR MAINTENANCE OF BALL VALVE |
摘要 |
<p>Apparatus for maintenance of the moveable pipe sleeves (52), bearing surface and seals of a ball valve. The apparatus comprises a bonnet (7) designed to be secured to and form a tight connection with a valve flange (53) and fastened to the underside of the bonnet (7), there are: honing tool for honing of spherical sealing surfaces (56) and conical sealing surfaces (51) on a valve housing; dismounting tool for dismounting of old sealing rings on the pipe sleeves (52); mounting tool for mounting of new sealing rings on the pipe sleeves (52); rotating mechanism (8) for 90 degrees rotation of the honing tool (1) and the pipe sleeves (52).</p> |
申请公布号 |
WO8901584(A1) |
申请公布日期 |
1989.02.23 |
申请号 |
WO1988NO00062 |
申请日期 |
1988.08.15 |
申请人 |
DEN NORSKE STATS OLJESELSKAP A.S |
发明人 |
HORVEI, KNUT, V. |
分类号 |
E21B34/02;B24B15/02;B24B33/08;B25B15/02;F16K5/06;F16K43/00;(IPC1-7):F16K43/00 |
主分类号 |
E21B34/02 |
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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