发明名称 |
APPARATUS FOR THE PRESSURE-TIGHT FASTENING OF A PIPE IN A PIPE-PLATE WITH THE AID OF A PRESSURE FLUID |
摘要 |
An apparatus for expanding tube ends in a tube sheet of a heat exchanger tube bundle comprises a mandrel which can be inserted into the tube end and an expansion pressure generator connected to said mandrel. A source of filling liquid is also connected to the mandrel to the expansion pressure generator which has a port for the filling liquid selectively blocked by the plunger of the expansion pressure generator so that problems with check valves for the filling can be obviated. |
申请公布号 |
ZA8200754(B) |
申请公布日期 |
1982.12.29 |
申请号 |
ZA19820000754 |
申请日期 |
1982.02.05 |
申请人 |
BUSSE WILFRIED |
发明人 |
BUSSE WILFRIED |
分类号 |
B21D39/06;B21D39/20;B21D53/06 |
主分类号 |
B21D39/06 |
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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